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def timesteps(data, steps): results = [] for i in range(len(data)- steps): results.append(data[i:i+steps+1].values.tolist()) return np.array(results) def input_reshape(data, shape): return data.reshape(shape) def slide1_window(data, value): data = data.reshape(-1, 2 ).tolist() new_data = data[1:] new_data.append(val...
data.groupby(['Sex', 'Pclass'])['Survived'].mean()
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def load_cases(df, feat): cases = pd.DataFrame(df[feat].values, index=df['Date']) return cases def scale_fit(data): scaler = MinMaxScaler() scaler.fit(scale_reshape(data)) return scaler def scale_transform(scaler, data): return scaler.transform(scale_reshape(data)).reshape(data.shape) def scale_reshape(data): results...
train_1=train.loc[(train.Sex=='male')] test_1=test.loc[(test.Sex=='male')] train_2=train.loc[(( train.Pclass<=2)&(train.Sex=='female')) ] test_2=test.loc[(( test.Pclass<=2)&(test.Sex=='female')) ] train_3=train.loc[(( train.Pclass>2)&(train.Sex=='female')) ] test_3=test.loc[(( test.Pclass>2)&(test.Sex=='female')) ]
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class covid19_forecaster: def __init__(self, feat, Country, Province, random_state=0): self.scalar = None self.model = None self.model_input_shape = None self.history = None self.last_timestep = None self.train_date = None self.difference_node = None self.feat = feat self.Country = Country self.Province = Province self...
col_final=['Age_T', 'Fare_T', 'Alone', 'Family_Size', 'FamSurvived', 'Title_Miss', 'Title_Mr', 'Title_Mrs']
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def forecast(train_path, test_path): df_train = load_csv(train_path) df_test = load_csv(test_path) cp = [] for i, row in df_test.iterrows() : v = row['Country_Region'], row['Province_State'] if v not in cp: cp.append(v) feats = ['ConfirmedCases', 'Fatalities'] train_start = 40 train_end = 84 time_steps = 10 diff_deg...
param_lgb ={'n_estimators': [100, 500, 1000, 2000], 'max_depth':[1,2,3,4,5], 'num_leaves': [2,4,6,8,10], 'min_child_samples ': [2,5,10,15,20], 'min_child_weight': [1e-5, 1e-3, 1e-2, 1e-1, 1, 1e1, 1e2, 1e3, 1e4], 'subsample':[0.4,0.5,0.6,0.7,0.8,0.9,1], 'colsample_bytree':[0.4,0.5,0.6,0.7,0.8,0.9,1], 'reg_alpha': [0, 1e...
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predictions = forecast(train_path, test_path )<save_to_csv>
def tune_stack_predict(X_train,y_train,X_test,listModels,listSearchParamM,stackModel,searchParamsModels,listSearchParamS): models_local=[] X_test_c=X_test.copy() for clf, param in zip(listModels,listSearchParamM): rs_clf=RandomizedSearchCV(estimator=clf, param_distributions=param, **searchParamsModels) rs_clf.fit(X_tr...
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df_sub = pd.read_csv(sub_path) feats = ['ConfirmedCases', 'Fatalities'] df_sub[feats] = predictions df_sub.to_csv('submission.csv', index=False )<set_options>
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pd.options.display.max_rows = 500 pd.options.display.max_columns = 500 %matplotlib inline <load_from_csv>
param_meta1={'cv': 10, 'estimators': [['Logis', LogisticRegression(C=0.4, class_weight=10, l1_ratio=0.5, max_iter=10000, penalty='l1', random_state=81, solver='saga')], ['Rando', RandomForestClassifier(max_depth=3, min_samples_leaf=5, min_samples_split=5, n_estimators=25, random_state=81)], ['LGBMC', LGBMClassifier(col...
Titanic - Machine Learning from Disaster
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train = pd.read_csv('.. /input/covid19-global-forecasting-week-4/train.csv') us_before = pd.read_csv('.. /input/jhu-covid19-data-with-us-state-data-prior-to-mar-9/covid19_train_data_us_states_before_march_09_new.csv') update =(train['Country_Region'] == 'US')&(train.Date <= '2020-03-09') df = train[update] us_before...
stack_clf1=StackingClassifier(**param_meta1) stack_clf3=StackingClassifier(**param_meta3 )
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test = pd.read_csv('.. /input/covid19-global-forecasting-week-4/test.csv') test['Province_State'].fillna('', inplace=True) test['Date'] = pd.to_datetime(test['Date']) test['day'] = test.Date.dt.dayofyear test['geo'] = ['_'.join(x)for x in zip(test['Country_Region'], test['Province_State'])] test day_min = train['day...
stack_clf1.fit(train_1[col_final],train_1['Survived']) stack_clf3.fit(train_3[col_final],train_3['Survived'] )
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def get_sub(start_val_delta=0): start_val = min_test_val_day + start_val_delta last_train = start_val - 1 num_val = max_test_val_day - start_val + 1 first_train = last_train + 1 -(num_train) keep_cases = cases keep_deaths = deaths print(dates[last_train], '%3d %3d' %(start_val, num_val), end=' ') country_ids_base = g...
y_pred_1=stack_clf1.predict(test_1[col_final]) y_pred_3=stack_clf3.predict(test_3[col_final] )
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known_test = train[['geo', 'day', 'ConfirmedCases', 'Fatalities'] ].merge(test[['geo', 'day', 'ForecastId']], how='left', on=['geo', 'day']) known_test = known_test[['ForecastId', 'ConfirmedCases', 'Fatalities']][known_test.ForecastId.notnull() ].copy() known_test unknow_test = test[test.day > max_test_val_day] unknow...
y_pred_1=pd.DataFrame({'PassengerId':test_1['PassengerId'],'Survived':y_pred_1 }, dtype=int) y_pred_2=pd.DataFrame({'PassengerId':test_2['PassengerId'],'Survived':1 }, dtype=int) y_pred_3=pd.DataFrame({'PassengerId':test_3['PassengerId'],'Survived':y_pred_3 }, dtype=int )
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<load_from_csv><EOS>
y_sub=pd.concat([y_pred_1,y_pred_2,y_pred_3], axis=0 ).sort_values('PassengerId') y_sub.to_csv("sub.csv",index=False )
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<SOS> metric: categorizationaccuracy Kaggle data source: titanic-machine-learning-from-disaster<data_type_conversions>
import pandas as pd import numpy as np import seaborn as sns from sklearn.preprocessing import OneHotEncoder, LabelEncoder, StandardScaler from sklearn.ensemble import RandomForestClassifier from sklearn.neighbors import KNeighborsClassifier from sklearn.feature_selection import RFECV, RFE from sklearn.model_selection ...
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train['id_x']=train['Date'].astype(str ).values+'_'+train['State'].astype(str ).values+'_'+train['Country'].astype(str ).values+'_'+train['Type'].astype(str ).values test['id_x']=test['Date'].astype(str ).values+'_'+test['State'].astype(str ).values+'_'+test['Country'].astype(str ).values+'_'+test['Type'].astype(str )....
random_state = 101
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os.environ['OMP_NUM_THREADS'] = '1' gc.enable() features = ['id_x','Day'] X_train = [np.array(train[train.Country_State_id== x][features])for x in list(train.Country_State_id.unique())] X_test = [np.array(test[test.Country_State_id== x][features])for x in list(train.Country_State_id.unique())] y_target_c = [np.array(tr...
data_train = pd.read_csv(".. /input/titanic/train.csv" ).set_index("PassengerId") data_test = pd.read_csv(".. /input/titanic/test.csv" ).set_index("PassengerId") data = pd.concat([data_train, data_test] )
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import numpy as np import pandas as pd <load_from_csv>
data["Sex"] = OneHotEncoder(drop='if_binary' ).fit_transform(data[["Sex"]] ).toarray().astype("int" )
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train = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/train.csv') test = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/test.csv') train['CRPS']=train.Country_Region+train.Province_State.fillna('') test['CRPS']=test.Country_Region+test.Province_State.fillna('') train<feature_engineering...
FEATURES_BASELINE = ["Sex", "Pclass"]
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train['LConfirmedCases']=np.log1p(train['ConfirmedCases']) train['LFatalities']=np.log1p(train['Fatalities']) train['LDConfirmedCases']=train.groupby('CRPS')[['LConfirmedCases']].diff() train['LDFatalities']=train.groupby('CRPS')[['LFatalities']].diff() train['LConfirmedCases1']=train.groupby('CRPS')[['LConfirmedCase...
def title(name): surname_split = name.split(", ") title_split = surname_split[1].split(".") title = title_split[0] return title
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lgbm_cc=LGBMRegressor(num_leaves = 85,learning_rate =10**-1.89,n_estimators=100,min_sum_hessian_in_leaf=(10**-4.1),min_child_samples =2,subsample =0.97,subsample_freq=10, colsample_bytree = 0.68,reg_lambda=10**1.4,random_state=1234,n_jobs=4) lgbm_f=LGBMRegressor(num_leaves = 26,learning_rate =10**-1.63,n_estimators=10...
data["Title"] = data.Name.apply(title) data['Title'] = data['Title'].replace(['Dona', 'Mlle', 'Ms'], 'Miss') data['Title'] = data['Title'].replace(['Lady', 'the Countess', 'Mme'], 'Mrs') data['Title'] = data['Title'].replace(['Jonkheer', 'Don', 'Sir', 'Capt', 'Major', 'Col'], 'Mr') data['Title'].value_counts()
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train['serd']=train.groupby('CRPS' ).cumcount() trainpred = pd.concat(( train,test[test.Date>train.Date.max() ])).reset_index(drop=True) trainpred.sort_values(['Country_Region','Province_State','Date'],inplace=True) X=oe.transform(trainpred[['Country_Region','Province_State']].fillna('')) trainpred['CR']=X[:,0] train...
data["Neighbors"] = neighbors(data["Ticket"] )
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trainpred.loc[(trainpred.Date<=max(test.Date)) &(trainpred.Date>=min(test.Date)) ,'ForecastId']=test.loc[:,'ForecastId'].values submission=trainpred.loc[trainpred.Date>=min(test.Date)][['ForecastId','ConfirmedCases','Fatalities']] submission.ForecastId=submission.ForecastId.astype('int') submission.sort_values('Foreca...
print("Passengers with Embarked NaNs") print(data[pd.isnull(data.Embarked)]) embarked_nans_fare = data.loc[(data.Pclass == 1)&(data.Neighbors == 1), "Fare"].median() print(f"Median fare for this type of passengers: {embarked_nans_fare}" )
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warnings.filterwarnings("ignore") train = pd.read_csv("/kaggle/input/covid19-global-forecasting-week-4/train.csv") test = pd.read_csv("/kaggle/input/covid19-global-forecasting-week-4/test.csv" )<feature_engineering>
data.loc[pd.isnull(data.Embarked), "Embarked"] = "C"
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train["Province_State"] = train["Province_State"].fillna('') test["Province_State"] = test["Province_State"].fillna('') train["Month"], train["Day"] = 0, 0 for i in range(len(train)) : train["Month"][i] =(train["Date"][i] ).split("-")[1] train["Day"][i] =(train["Date"][i] ).split("-")[2] test["Month"], test["Day"] = ...
print(data[pd.isnull(data.Age)]) data.loc[(data["Title"] == "Mr")&(data["Age"] < 12), "Title"] = "Master" data.Age.fillna(data.groupby(['Title', 'Pclass', 'Sex'] ).transform('median' ).Age, inplace=True )
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for i in range(len(train)) : if train["Province_State"][i] != '': train["Country_Region"][i] = train["Province_State"][i] + "(" + str(train["Country_Region"][i])+ ")" for i in range(len(test)) : if test["Province_State"][i] != '': test["Country_Region"][i] = test["Province_State"][i] + "(" + str(test["Country_Region"][...
print(data[(pd.isnull(data["Fare"])) |(data["Fare"] == 0)]) data.loc[data["Fare"] == 0, "Fare"] = np.NaN data["Fare"].fillna(data.groupby(['Embarked', 'Pclass', 'Neighbors'] ).transform('median' ).Fare, inplace=True )
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i = 0 for value in train["Country/State"].unique() : if i < len(train): j = 1 while(train["Country/State"][i] == value): train["Day"][i] = j j += 1; i += 1 if i == len(train): break i = 0 for value in test["Country/State"].unique() : if i < len(test): j = 72 while(test["Country/State"][i] == value): test["Day"][i] = j ...
encoder = LabelEncoder() data["Embarked"] = encoder.fit_transform(data["Embarked"] )
Titanic - Machine Learning from Disaster
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train["Country/State"].loc[train["Country/State"] == "Taiwan*"] = "Taiwan" test["Country/State"].loc[test["Country/State"] == "Taiwan*"] = "Taiwan" train = train.drop(columns = ["Date"]) test = test.drop(columns = ["Date"]) countriesorstates = train["Country/State"].unique() print(len(countriesorstates)) print(countr...
FEATURES_1 = ['Sex', 'Pclass', 'Embarked']
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random_picks = random.choices(countriesorstates, k = 9) for value in random_picks: train_temp = train.loc[train["Country/State"] == value] test_temp = test.loc[test["Country/State"] == value] train_temp_cc = train_temp["ConfirmedCases"].loc[train["Country/State"] == value] train_temp_ft = train_temp["Fatalities"].loc[...
data['Group_Status'] = 0 ticket_grouping = data.groupby("Ticket") for _, group in ticket_grouping: if(len(group)> 1): for i, row in group.iterrows() : s_max = group.drop(i)['Survived'].max() pass_id = row.name if s_max == 1.0: data.loc[pass_id, 'Group_Status'] = 1 elif s_max == 0.0: data.loc[pass_id, 'Group_Status'] =...
Titanic - Machine Learning from Disaster
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poly_reg_cc = PolynomialFeatures(degree = 4) poly_reg_ft = PolynomialFeatures(degree = 4) reg_cc = LinearRegression() reg_ft = LinearRegression() sub = pd.DataFrame({'ForecastId': [], 'ConfirmedCases': [], 'Fatalities': []}) for value in countriesorstates: train_temp = train.loc[train["Country/State"] == value] test...
FEATURES_2 = ['Sex', 'Pclass', 'Embarked', 'Group_Status']
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sub.ForecastId = sub.ForecastId.astype('int') for i in range(len(sub)) : sub["ConfirmedCases"][i] = int(round(sub["ConfirmedCases"][i])) sub["Fatalities"][i] = int(round(sub["Fatalities"][i])) sub.to_csv("submission.csv", index = False )<load_from_csv>
FEATURES_3 = ['Sex', 'Pclass', 'Embarked', 'Group_Status', 'Age_Bin']
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submission=pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/submission.csv' )<load_from_csv>
data["Fare_per_Person"] = data["Fare"] /(1 + data["Neighbors"]) bins = pd.qcut(data["Fare_per_Person"], 6, labels=False, retbins=True) data["Fare_per_Person_Bin"] = bins[0]
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submission=pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/submission.csv' )<load_from_csv>
FEATURES_4 = ['Sex', 'Pclass', 'Embarked', 'Group_Status', 'Age_Bin', 'Fare_per_Person_Bin']
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submission = pd.read_csv(".. /input/covid19-global-forecasting-week-4/submission.csv") test = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") train = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") train.Province_State.fillna("None", inplace=True) display(train.head(5)) disp...
data["Family_Size"] = data["SibSp"] + data["Parch"] data["Connections"] = data[["Family_Size", "Neighbors"]].max(axis=1) bins = np.array([data["Connections"].min() , 1, 4, data["Connections"].max() ]) data["Connections_Bin"] = np.digitize(data["Connections"], bins )
Titanic - Machine Learning from Disaster
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confirmed_total_date_Italy = train[train['Country_Region']=='Italy'].groupby(['Date'] ).agg({'ConfirmedCases':['sum']}) fatalities_total_date_Italy = train[train['Country_Region']=='Italy'].groupby(['Date'] ).agg({'Fatalities':['sum']}) total_date_Italy = confirmed_total_date_Italy.join(fatalities_total_date_Italy) ...
FEATURES_5 = ['Sex', 'Pclass', 'Embarked', 'Group_Status', 'Age_Bin', 'Fare_per_Person_Bin', "Connections_Bin"]
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pop_India=1377011281. pop_US=330578810. pop_spain = 46749696. pop_italy = 60486683. pop_UK = 67784927. pop_singapore = 5837230. total_date_India.ConfirmedCases = total_date_India.ConfirmedCases/pop_India*100. total_date_India.Fatalities = total_date_India.ConfirmedCases/pop_India*100. total_date_US.ConfirmedCas...
def model(X, y, features, random_state, parameters=None): model = RandomForestClassifier(random_state=random_state, n_estimators=500, min_samples_split=0.05) if parameters is not None: model.set_params(**parameters) model.fit(X[features], y) score_cv = cross_val_score(model, X[features], y, cv=cv ).mean() print(f"Mo...
Titanic - Machine Learning from Disaster
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confirmed_total_date_India = train[(train['Country_Region']=='India')& train['ConfirmedCases']!=0].groupby(['Date'] ).agg({'ConfirmedCases':['sum']}) fatalities_total_date_India = train[(train['Country_Region']=='India')& train['ConfirmedCases']!=0].groupby(['Date'] ).agg({'Fatalities':['sum']}) total_date_India = co...
X_train = data.loc[data_train.index].drop("Survived", axis=1) y_train = data.loc[data_train.index, "Survived"] X_test = data.loc[data_test.index].drop("Survived", axis=1) cv=KFold(10, shuffle=True, random_state=random_state )
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le = preprocessing.LabelEncoder() <sort_values>
MODEL_BASELINE = model(X_train, y_train, FEATURES_BASELINE, random_state)
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df = train.fillna('NA' ).groupby(['Country_Region','Province_State','Date'])['ConfirmedCases'].sum() \ .groupby(['Country_Region','Province_State'] ).max().sort_values() \ .groupby(['Country_Region'] ).sum().sort_values(ascending = False) top20_countries = pd.DataFrame(df ).head(20) top20_countries<data_type_conver...
MODEL_1 = model(X_train, y_train, FEATURES_1, random_state)
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train['Date'] = pd.to_datetime(train['Date'], infer_datetime_format=True) test['Date'] = pd.to_datetime(test['Date'], infer_datetime_format=True )<data_type_conversions>
MODEL_2 = model(X_train, y_train, FEATURES_2, random_state)
Titanic - Machine Learning from Disaster
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train.loc[:, 'Date'] = train.Date.dt.strftime('%y%m%d') train.loc[:, 'Date'] = train['Date'].astype(int) test.loc[:, 'Date'] = test.Date.dt.strftime('%y%m%d') test.loc[:, 'Date'] = test['Date'].astype(int )<feature_engineering>
MODEL_3 = model(X_train, y_train, FEATURES_3, random_state)
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train['Province_State'] = np.where(train['Province_State'] == 'nan',train['Country_Region'],train['Province_State']) test['Province_State'] = np.where(test['Province_State'] == 'nan',test['Country_Region'],test['Province_State'] )<data_type_conversions>
MODEL_4 = model(X_train, y_train, FEATURES_4, random_state)
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convert_dict = {'Province_State': str} train = train.astype(convert_dict) test = test.astype(convert_dict )<load_from_csv>
MODEL_5 = model(X_train, y_train, FEATURES_5, random_state)
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submission = pd.read_csv(".. /input/covid19-global-forecasting-week-4/submission.csv") test = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") train = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv" )<count_missing_values>
FEATURES = ['Sex', 'Pclass', 'Embarked', 'Group_Status', 'Age_Bin', 'Fare_per_Person_Bin', "Connections_Bin"]
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train.isna().sum()<count_missing_values>
params = { 'n_estimators': [500, 1000], 'min_samples_split': [2, 0.0025, 0.005, 0.01, 0.025, 0.05, 0.10] } results = pd.DataFrame() gs = GridSearchCV(estimator=RandomForestClassifier(random_state), param_grid=params, cv=cv, verbose=1, n_jobs=-1) gs.fit(X_train[FEATURES], y_train) results = pd.DataFrame(gs.cv_results_...
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test.isna().sum()<data_type_conversions>
params = { 'n_estimators': [500, 1000], 'max_depth': [3, 4, 5, 6, 7, None], } results = pd.DataFrame() gs = GridSearchCV(estimator=RandomForestClassifier(random_state), param_grid=params, cv=cv, verbose=1, n_jobs=-1) gs.fit(X_train[FEATURES], y_train) results = pd.DataFrame(gs.cv_results_) table = pd.pivot_table(res...
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train['Province_State'].fillna("",inplace = True) test['Province_State'].fillna("",inplace = True )<drop_column>
model = RandomForestClassifier(random_state=random_state) pipe = Pipeline([("rfe", RFE(model, verbose=0)) ,("rf", model)]) params = { 'rfe__n_features_to_select': [1,2,3,4,5,6,7], 'rf__n_estimators': [500], 'rf__min_samples_split': [2, 0.01], 'rf__max_depth': [5, 6, None] } grid = GridSearchCV(pipe, param_grid=params...
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train['Country_Region'] = train['Country_Region'] + ' ' + train['Province_State'] test['Country_Region'] = test['Country_Region'] + ' ' + test['Province_State'] del train['Province_State'] del test['Province_State']<feature_engineering>
MODEL_6 = grid.best_estimator_ print(f"Model CV score is {grid.best_score_:.5f}")
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def split_date(date): date = date.split('-') date[0] = int(date[0]) if(date[1][0] == '0'): date[1] = int(date[1][1]) else: date[1] = int(date[1]) if(date[2][0] == '0'): date[2] = int(date[2][1]) else: date[2] = int(date[2]) return date train.Date = train.Date.apply(split_date) test.Date = test.Date.apply(split_d...
MODEL_7 = catboost.CatBoostClassifier(one_hot_max_size=4, iterations=1000, random_seed=random_state, verbose=False) MODEL_7.fit(X_train[FEATURES_4], y_train) score_cv = cross_val_score(MODEL_7, X_train[FEATURES_4], y_train, cv=cv ).mean() print(f"Model CV score is {score_cv:.5f}")
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year = [] month = [] day = [] for i in train.Date: year.append(i[0]) month.append(i[1]) day.append(i[2] )<feature_engineering>
model = KNeighborsClassifier() pipe = Pipeline([("scaler", StandardScaler()),("knn", model)]) params = { 'knn__n_neighbors': [3, 9, 15, 20, 21, 22, 25, 30], 'knn__weights': ['uniform', 'distance'] } knn_grid = GridSearchCV(pipe, param_grid=params, cv=cv, verbose=0, n_jobs=-1) knn_grid.fit(X_train[FEATURES], y_train) ...
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train['Year'] = year train['Month'] = month train['Day'] = day del train['Date']<feature_engineering>
MODEL_8 = knn_grid.best_estimator_ print(f"Model CV score is {knn_grid.best_score_:.5f}")
Titanic - Machine Learning from Disaster
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year = [] month = [] day = [] for i in test.Date: year.append(i[0]) month.append(i[1]) day.append(i[2] )<feature_engineering>
MODEL_4.fit(X_train[FEATURES_4], y_train) prediction_4 = MODEL_4.predict_proba(X_test[FEATURES_4])[:,1] submit = pd.DataFrame({"PassengerId": X_test.index,"Survived": np.round(prediction_4, 0 ).astype(int)}) submit.to_csv("MODEL_4.csv",index=False )
Titanic - Machine Learning from Disaster
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test['Year'] = year test['Month'] = month test['Day'] = day del test['Date'] del train['Id'] del test['ForecastId']<drop_column>
MODEL_6.fit(X_train[FEATURES], y_train) prediction_6 = MODEL_6.predict_proba(X_test[FEATURES])[:,1] submit = pd.DataFrame({"PassengerId": X_test.index,"Survived": np.round(prediction_6, 0 ).astype(int)}) submit.to_csv("MODEL_6.csv",index=False )
Titanic - Machine Learning from Disaster
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del train['Year'] del test['Year']<data_type_conversions>
MODEL_7.fit(X_train[FEATURES_4], y_train) prediction_7 = MODEL_7.predict_proba(X_test[FEATURES_4])[:,1] submit = pd.DataFrame({"PassengerId": data_test.index,"Survived": np.round(prediction_7, 0 ).astype(int)}) submit.to_csv("MODEL_7.csv",index=False )
Titanic - Machine Learning from Disaster
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train['ConfirmedCases'] = train['ConfirmedCases'].apply(int) train['Fatalities'] = train['Fatalities'].apply(int )<drop_column>
MODEL_8.fit(X_train[FEATURES], y_train) prediction_8 = MODEL_8.predict_proba(X_test[FEATURES])[:,1] submit = pd.DataFrame({"PassengerId": data_test.index,"Survived": np.round(prediction_8, 0 ).astype(int)}) submit.to_csv("MODEL_8.csv",index=False )
Titanic - Machine Learning from Disaster
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cases = train.ConfirmedCases fatalities = train.Fatalities del train['ConfirmedCases'] del train['Fatalities']<categorify>
train_data = pd.read_csv("/kaggle/input/titanic/train.csv") train_data.head()
Titanic - Machine Learning from Disaster
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lb = LabelEncoder() train['Country_Region'] = lb.fit_transform(train['Country_Region']) test['Country_Region'] = lb.transform(test['Country_Region'] )<normalization>
test_data = pd.read_csv("/kaggle/input/titanic/test.csv") test_data.head()
Titanic - Machine Learning from Disaster
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scaler = MinMaxScaler() x_train = scaler.fit_transform(train.values) x_test = scaler.transform(test.values )<train_model>
def generateBaselineOutputNobodySurvives(df): output = pd.DataFrame({'PassengerId': df.PassengerId, 'Survived': np.full(( len(df)) , 0)}) return output output_train = generateBaselineOutputNobodySurvives(train_data) output_test = generateBaselineOutputNobodySurvives(test_data )
Titanic - Machine Learning from Disaster
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rf = XGBRegressor(n_estimators = 2500 , random_state = 0 , max_depth = 27) rf.fit(x_train,cases )<predict_on_test>
print("MSE baseline: ", mean_squared_error(train_data["Survived"], output_train["Survived"])) print("LogLoss baseline", log_loss(train_data["Survived"], output_train["Survived"]))
Titanic - Machine Learning from Disaster
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cases_pred = rf.predict(x_test) cases_pred<feature_engineering>
output_test.to_csv('baseline_submission.csv', index=False) print("Your baseline submission was successfully saved!" )
Titanic - Machine Learning from Disaster
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cases_pred = np.around(cases_pred,decimals = 0) cases_pred<concatenate>
train_data_copy = train_data.copy() test_data_copy = test_data.copy() median_age = train_data["Age"].median() train_data["Age"] = train_data["Age"].replace(np.nan, median_age) train_data["Embarked"] = train_data["Embarked"].replace(np.nan, 'S') for feature in ['PassengerId', 'Name','Cabin', 'Ticket']: train_data.drop...
Titanic - Machine Learning from Disaster
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x_train_cas = [] for i in range(len(x_train)) : x = list(x_train[i]) x.append(cases[i]) x_train_cas.append(x) x_train_cas[0]<prepare_x_and_y>
Y_train = pd.DataFrame(train_data["Survived"] ).to_numpy().flatten() train_data.drop("Survived", axis=1, inplace=True) X_train = train_data.to_numpy()
Titanic - Machine Learning from Disaster
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x_train_cas = np.array(x_train_cas )<train_model>
def build_model(input_shape, learning_rate=0.01): tf.keras.backend.clear_session() np.random.seed(0) tf.compat.v1.set_random_seed(0) model = keras.Sequential() model.add(keras.layers.Flatten(input_shape=input_shape)) model.add(keras.layers.Dense( units=512, use_bias=True, activation="relu", )) model.add(keras.lay...
Titanic - Machine Learning from Disaster
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rf = XGBRegressor(n_estimators = 2500 , random_state = 0 , max_depth = 27) rf.fit(x_train_cas,fatalities )<concatenate>
model = build_model(input_shape=X_train[0].shape, learning_rate=0.01) history = model.fit( x = X_train, y = Y_train, epochs=5, batch_size=64, validation_split=0.1, verbose=1 ) history = pd.DataFrame(history.history) display(history) plot_history(history )
Titanic - Machine Learning from Disaster
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x_test_cas = [] for i in range(len(x_test)) : x = list(x_test[i]) x.append(cases_pred[i]) x_test_cas.append(x) x_test_cas[0]<predict_on_test>
train_predictions = model.predict(X_train ).flatten() thresholds = [0.3,0.49, 0.5, 0.51, 0.52, 0.7] group_names = ["True Neg", "False Pos", "False Neg" , "True Pos"] for threshold in thresholds: train_predictions_copy = np.copy(train_predictions) train_predictions_copy[train_predictions < threshold] = 0.0 train_predic...
Titanic - Machine Learning from Disaster
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fatalities_pred = rf.predict(x_test_cas) fatalities_pred<feature_engineering>
pd.set_option("display.max_rows", None, "display.max_columns", None) train_data_copy['Prediction'] = train_predictions train_data_copy['Difference'] = abs(train_data_copy['Survived'] - train_data_copy['Prediction']) train_data_copy = train_data_copy[['Difference', 'Survived','Prediction', 'Pclass', 'Sex', 'Age', 'Far...
Titanic - Machine Learning from Disaster
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fatalities_pred = np.around(fatalities_pred,decimals = 0) fatalities_pred<prepare_output>
test_data_copy = test_data.copy() for feature in ['PassengerId', 'Name','Cabin', 'Ticket']: test_data.drop(feature, axis=1, inplace=True) test_data["Age"] = test_data["Age"].replace(np.nan, median_age) test_data["Embarked"] = test_data["Embarked"].replace(np.nan, 'S') test_data["Fare"] = test_data["Fare"].replace(np...
Titanic - Machine Learning from Disaster
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<save_to_csv><EOS>
test_predictions = model.predict(X_test ).flatten() test_predictions_actual_values = np.array([1 if val >= 0.51 else 0 for val in test_predictions]) output_test_logit = pd.DataFrame({'PassengerId': test_data_copy.PassengerId, 'Survived': test_predictions_actual_values}) output_test_logit.to_csv('logit_submission.csv'...
Titanic - Machine Learning from Disaster
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<SOS> metric: categorizationaccuracy Kaggle data source: titanic-machine-learning-from-disaster<save_to_csv>
%matplotlib inline
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submission.to_csv('submission.csv', index=False )<set_options>
titanic_filepath =('.. /input/titanic/train.csv') titanic_data= pd.read_csv(titanic_filepath) test_filepath =('.. /input/titanic/test.csv') test_data=pd.read_csv(test_filepath )
Titanic - Machine Learning from Disaster
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pio.templates.default = "plotly_dark" <load_from_csv>
features=['Sex','Fare', 'Pclass','Parch','SibSp']
Titanic - Machine Learning from Disaster
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train_df = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/train.csv') test_df = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/test.csv') submission = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/submission.csv' )<count_missing_values>
x=titanic_data[features] test_x=test_data[features]
Titanic - Machine Learning from Disaster
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train_df.isna().sum()<count_missing_values>
y=titanic_data.Survived
Titanic - Machine Learning from Disaster
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test_df.isna().sum()<data_type_conversions>
cleanup_nums = {"Sex": {"male": 1, "female": 2}} cleanup_nums2 = {"Embarked": {"S": 1, "C": 2, "Q": 3}} x.head()
Titanic - Machine Learning from Disaster
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all_data = pd.concat([train_df,test_df],axis=0,sort=False) all_data['Province_State'].fillna("None", inplace=True) all_data['ConfirmedCases'].fillna(0, inplace=True) all_data['Fatalities'].fillna(0, inplace=True) all_data['Id'].fillna(-1, inplace=True) all_data['ForecastId'].fillna(-1, inplace=True) <categorify>
x=x.fillna(x.mean()) test_x=test_x.fillna(test_x.mean())
Titanic - Machine Learning from Disaster
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le = LabelEncoder() all_data['Date'] = pd.to_datetime(all_data['Date']) all_data['Day_num'] = le.fit_transform(all_data.Date) all_data['Day'] = all_data['Date'].dt.day all_data['Month'] = all_data['Date'].dt.month all_data['Year'] = all_data['Date'].dt.year <split>
model=XGBClassifier() model.fit(x,y )
Titanic - Machine Learning from Disaster
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train = all_data[all_data['ForecastId']==-1.0] test = all_data[all_data['ForecastId']!=-1.0]<categorify>
submission_path =('.. /input/titanic/gender_submission.csv') submission= pd.read_csv(submission_path )
Titanic - Machine Learning from Disaster
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train['Province_State'] = le.fit_transform(train['Province_State']) train['Country_Region'] = le.fit_transform(train['Country_Region']) test['Province_State'] = le.fit_transform(test['Province_State']) test['Country_Region'] = le.fit_transform(test['Country_Region']) X = train.drop(columns=['Id','ConfirmedCases','F...
submission['Survived']=model.predict(test_x)
Titanic - Machine Learning from Disaster
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model = XGBRegressor(n_estimators = 1000 , random_state = 0 , max_depth = 15) model.fit(X,cases) cases_pred = model.predict(x_test) model1 = XGBRegressor(n_estimators = 1000 , random_state = 0 , max_depth = 15) model1.fit(X,fatalities) fatalities_pred = model1.predict(x_test) <compute_test_metric>
submission['PassengerId']=test_data['PassengerId']
Titanic - Machine Learning from Disaster
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MSE = mean_squared_error(cases.iloc[0:13459],cases_pred) RMSE = sqrt(mean_squared_error(cases.iloc[0:13459],cases_pred)) MAE = mean_absolute_error(cases.iloc[0:13459],cases_pred) R2 = r2_score(cases.iloc[0:13459],cases_pred) print('Mean squared error :', MSE) print('Root mean squared error :',RMSE) print('Mean abs...
submission.columns=['PassengerId','Survived']
Titanic - Machine Learning from Disaster
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test_df_predict = test_df.copy() test_df_predict['Confirmedcase'] = cases_pred test_df_predict['Fatalities'] = fatalities_pred test_df_predict = test_df_predict.drop('Province_State',axis=1) test_df_predict.to_csv('Forecast_result.csv' )<groupby>
submission.columns=['PassengerId','Survived'] submission.head()
Titanic - Machine Learning from Disaster
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US = test_df_predict[test_df_predict['Country_Region']=='US'] US.groupby('Date')['Confirmedcase','Fatalities'].sum().reset_index()<sort_values>
submission.to_csv('Submission.csv', index=False)
Titanic - Machine Learning from Disaster
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test_df_predict.groupby(['Date','Country_Region'])['Confirmedcase','Fatalities'].max().reset_index().head(10) <sort_values>
sns.set()
Titanic - Machine Learning from Disaster
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test_df_predict.groupby('Country_Region')['Confirmedcase', 'Fatalities'].sum().reset_index().sort_values(by='Confirmedcase',ascending=False ).head(15) <save_to_csv>
data_train = pd.read_csv('/kaggle/input/titanic/train.csv') data_test = pd.read_csv('/kaggle/input/titanic/test.csv') data_total = data_train.append(data_test, ignore_index=True) data_train_length = len(data_train.index) for c in ['Pclass', 'Sex', 'Embarked', 'SibSp', 'Parch', 'Survived']: sns.catplot(x=c, kind='co...
Titanic - Machine Learning from Disaster
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cases_pred = [round(value)for value in cases_pred ] fatalities_pred = [round(value)for value in fatalities_pred ] submission['ConfirmedCases'] = cases_pred submission['Fatalities'] = fatalities_pred submission.to_csv('submission.csv',index=False) <set_options>
age_mean_by_pclass = data_total[['Pclass', 'Age']].groupby('Pclass' ).mean() data_total['Age'] = data_total.apply( lambda row: age_mean_by_pclass.loc[row['Pclass'], 'Age'] if np.isnan(row['Age'])else row['Age'], axis=1) fare_median_by_pclass = data_total[['Pclass', 'Fare']].groupby('Pclass' ).median() data_total['Far...
Titanic - Machine Learning from Disaster
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%matplotlib inline <define_variables>
data_total['isAlone'] =(( data_total['SibSp'] + data_total['Parch'])== 0)* 1 data_total['bigGroup'] =(( data_total['SibSp'] + data_total['Parch'])> 3)* 1 data_total['Title'] = data_total['Name'].str.extract('([A-Za-z]+)\.', expand=False) data_total['Title'] = data_total['Title'].replace(['Lady', 'Countess','Capt', 'Co...
Titanic - Machine Learning from Disaster
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PATH ='/kaggle/input/covid19-global-forecasting-week-4'<load_from_csv>
data_train = data_total[:data_train_length] X = data_train.drop(columns=['Survived'], axis=1) y = data_train['Survived'] X_train, X_test, y_train, y_test = train_test_split(X, y, random_state=0) scaler = StandardScaler().fit(X_train) X_train = scaler.transform(X_train) X_test = scaler.transform(X_test )
Titanic - Machine Learning from Disaster
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train = pd.read_csv(f'{PATH}/train.csv') train.head()<groupby>
svc_params = [{'C': [0.2, 0.4, 0.5, 1, 2, 3, 4, 5], 'kernel': ['rbf'], 'gamma': [.10,.15,.20,.25,.30]}] knn_params = [{'n_neighbors': [7, 8, 9, 10], 'weights': ['uniform'], 'algorithm': ['brute'], 'p': [2]}] rfc_params = [{'n_estimators': [80, 90, 100, 110, 120, 130, 140], 'criterion': ['entropy']}] classifier_names ...
Titanic - Machine Learning from Disaster
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total_countries_covid = train.groupby(['Country_Region'])['ConfirmedCases'].sum() <sort_values>
classifier_tuned = [SVC(C=best_params['SVC']['C'], gamma=best_params['SVC']['gamma'], kernel=best_params['SVC']['kernel']), KNeighborsClassifier(algorithm=best_params['KNN']['algorithm'], n_neighbors=best_params['KNN']['n_neighbors'], p=best_params['KNN']['p'], weights=best_params['KNN']['weights']), LogisticRegression...
Titanic - Machine Learning from Disaster
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df = train.fillna('NA' ).groupby(['Country_Region','Province_State','Date'])['ConfirmedCases'].sum() \ .groupby(['Country_Region','Province_State'] ).max().sort_values() \ .groupby(['Country_Region'] ).sum().sort_values(ascending = False) top20_countries = pd.DataFrame(df ).head(20) top20_countries<load_from_csv>
train_data = pd.read_csv("/kaggle/input/titanic/train.csv") test_data = pd.read_csv("/kaggle/input/titanic/test.csv" )
Titanic - Machine Learning from Disaster
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test = pd.read_csv(f'{PATH}/test.csv') test.head()<correct_missing_values>
women = train_data.loc[train_data.Sex == 'female']["Survived"] rate_women = sum(women)/len(women) print("% of women who survived:", rate_women )
Titanic - Machine Learning from Disaster
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x = X.fillna('NA' )<data_type_conversions>
men = train_data.loc[train_data.Sex == 'male']["Survived"] rate_men = sum(men)/len(men) print("% of men who survived:", rate_men )
Titanic - Machine Learning from Disaster
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X_train = train X_train['Date'] = pd.to_datetime(X_train['Date'], infer_datetime_format=True) test['Date'] = pd.to_datetime(test['Date'], infer_datetime_format=True) <load_pretrained>
train_data['age_group'] = pd.cut(train_data.Age, bins=[0, 10, 20, 30, 40, 50, 60, 70, 80]) Gender_grp = train_data.groupby(['Sex']) percent_present = dict(Gender_grp.get_group('female' ).age_group.value_counts(normalize=True)) num_present = dict(Gender_grp.get_group('female' ).age_group.value_counts()) survivors = G...
Titanic - Machine Learning from Disaster
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EMPTY_VAL = "EMPTY_VAL" def fillState(Province_State, Country_Region): if Province_State == EMPTY_VAL: return Country_Region return Province_State<data_type_conversions>
num_present = dict(Gender_grp.get_group('male' ).age_group.value_counts()) print(num_present) survivors_1 = Gender_grp.get_group('male')[Gender_grp.get_group('male' ).Survived == 1] age_survived_1 = {} for i in num_present: age_survived[i] = survivors_1.loc[survivors_1.age_group==i]["Survived"].count() list_of_dict =...
Titanic - Machine Learning from Disaster
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X_train_new = X_train.copy() X_train_new['Province_State'].fillna(EMPTY_VAL, inplace=True) X_train_new['Province_State'] = X_train_new.loc[:, ['Province_State', 'Country_Region']].apply(lambda x : fillState(x['Province_State'], x['Country_Region']), axis=1) X_train_new.loc[:, 'Date'] = X_train_new.Date.dt.strftime("%...
print("Number of missing values for females",Gender_grp.get_group('female' ).Age.isnull().sum()) print("Total for females",Gender_grp.get_group('female' ).PassengerId.count()) print("Number of missing values for males",Gender_grp.get_group('male' ).Age.isnull().sum()) print("Total for males", Gender_grp.get_group('m...
Titanic - Machine Learning from Disaster
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l = preprocessing.LabelEncoder() X_train_new.Country_Region = l.fit_transform(X_train_new.Country_Region) X_train_new['Province_State'] = l.fit_transform(X_train_new['Province_State']) X_train_new.head() <data_type_conversions>
Titanic - Machine Learning from Disaster
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X_Test = test.copy() X_Test['Province_State'].fillna(EMPTY_VAL, inplace=True) X_Test['Province_State'] = X_Test.loc[:, ['Province_State', 'Country_Region']].apply(lambda x : fillState(x['Province_State'], x['Country_Region']), axis=1) X_Test.loc[:, 'Date'] = X_Test.Date.dt.strftime("%m%d") X_Test["Date"] = X_Test["D...
pclass_group = train_data.groupby('Pclass')
Titanic - Machine Learning from Disaster
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X_Test.Country_Region = l.fit_transform(X_Test.Country_Region) X_Test['Province_State'] = l.fit_transform(X_Test['Province_State']) X_Test.head() <create_dataframe>
num_present_pclass_1 = dict(pclass_group.get_group(1 ).age_group.value_counts()) survived_age_pclass_1 = {} for i in num_present_pclass_1: value = pclass_group.get_group(1 ).loc[pclass_group.get_group(1 ).age_group == i]['Survived'] survived_age_pclass_1[i]=sum(value) list_of_pclass_1=[survived_age_pclass_1,num_prese...
Titanic - Machine Learning from Disaster
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p1_final = pd.DataFrame() p3 = pd.DataFrame() pred = pd.DataFrame() p = list() id_1 = pd.DataFrame() id_2 = pd.DataFrame() p1 =list() for i in country: id_1 = pd.concat([id_1,id_2]) state = X_train_new.loc[X_train_new.Country_Region == i, :].Province_State.unique() for j in state: X_train_1 = X_train_new.loc[(X_train_...
num_present_pclass_2 = dict(pclass_group.get_group(2 ).age_group.value_counts()) survived_age_pclass_2 = {} for i in num_present_pclass_2: value = pclass_group.get_group(2 ).loc[pclass_group.get_group(2 ).age_group == i]['Survived'] survived_age_pclass_2[i]=sum(value) list_of_pclass_2=[survived_age_pclass_2,num_prese...
Titanic - Machine Learning from Disaster
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path_week4 = '/kaggle/input/covid19-global-forecasting-week-4' df_train = pd.read_csv(f'{path_week4}/train.csv',parse_dates=['Date'], engine='python') df_test = pd.read_csv(f'{path_week4}/test.csv') df_train.head() df_test.head() df_train.rename(columns={'Country_Region':'Country'}, inplace=True) df_test.rename(colu...
num_present_pclass_3 = dict(pclass_group.get_group(3 ).age_group.value_counts()) survived_age_pclass_3 = {} for i in num_present_pclass_3: value = pclass_group.get_group(3 ).loc[pclass_group.get_group(3 ).age_group == i]['Survived'] survived_age_pclass_3[i]=sum(value) list_of_pclass_3=[survived_age_pclass_3,num_prese...
Titanic - Machine Learning from Disaster
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import numpy as np import pandas as pd import seaborn as sns from sklearn.model_selection import train_test_split from xgboost import XGBRegressor from sklearn.multioutput import MultiOutputRegressor from sklearn.impute import SimpleImputer<load_from_csv>
gender_class_group = train_data.groupby(['Sex','Pclass'] )
Titanic - Machine Learning from Disaster
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train_data = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/train.csv') test_data = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/test.csv') submission_csv = pd.read_csv('/kaggle/input/covid19-global-forecasting-week-4/submission.csv' )<data_type_conversions>
num_present_gender_class_1 = dict(gender_class_group.get_group(( 'female',1)).age_group.value_counts()) survived_1 = {} for i in num_present_gender_class_1: value = gender_class_group.get_group(( 'female',1)).loc[gender_class_group.get_group(( 'female',1)).age_group==i]['Survived'] survived_1[i] = sum(value) list_1 =...
Titanic - Machine Learning from Disaster