CQADupstackStatsRetrieval/default/test/queries.jsonl

{"id":"82992","text":"Using principal component analysis (PCA) for feature selection in regression"}
{"id":"82996","text":"Calculate AUC of a logistic regression model"}
{"id":"19971","text":"Difference between two separate multiple regression analyses and one combined using dummy variables"}
{"id":"23501","text":"Probabilistic (Bayesian) vs Optimisation (Frequentist) methods in Machine Learning"}
{"id":"21939","text":"Relatively normalizing values for collaborative filtering"}
{"id":"57083","text":"Interpreta​tion of main effect when interactio​n term is significan​t (ex. lme)"}
{"id":"9751","text":"Do we need a global test before post hoc tests?"}
{"id":"112941","text":"How can I determine local minima from a Kernel Density Estimation?"}
{"id":"88980","text":"Why on average does each bootstrap sample contain roughly two thirds of observations?"}
{"id":"87908","text":"exact percentage change for the estimated COOP effect"}
{"id":"70133","text":"F test for regressions with a small N with robust standard errors"}
{"id":"18896","text":"Practical thoughts on explanatory vs predictive modeling"}
{"id":"89949","text":"Geometric mean of uniform variables"}
{"id":"41540","text":"How to get the prediction values for two response variables from random forest?"}
{"id":"71771","text":"purpose p value with CI in non-inferiority trials"}
{"id":"8033","text":"How to find percentiles of a Normal distribution?"}
{"id":"43339","text":"What's wrong with XKCD's Frequentists vs. Bayesians comic?"}
{"id":"13676","text":"Why does t statistic increase with the sample size?"}
{"id":"16008","text":"What does \"unbiasedness\" mean?"}
{"id":"94360","text":"Sum of squared errors"}
{"id":"60256","text":"Standard deviation of binned observations"}
{"id":"60257","text":"Markov chain getting stuck due to insufficient data samples"}
{"id":"19583","text":"How to read quantiles from R2WinBUGS?"}
{"id":"60785","text":"How to create a ratio from different measures?"}
{"id":"7948","text":"When is it ok to remove the intercept in lm()?"}
{"id":"12200","text":"\"Normalizing\" variables for SVD \/ PCA"}
{"id":"90129","text":"What is the difference between \"data mining\" and \"data analytics\"?"}
{"id":"63256","text":"What is the current 'standard' for modern statistical computing hardware?"}
{"id":"10510","text":"What are good references containing arguments against null hypothesis significance testing?"}
{"id":"67571","text":"How can I group numerical data into naturally forming \"brackets\"? (e.g. income)"}
{"id":"34325","text":"Regression modelling with unequal variance"}
{"id":"346","text":"What is a good algorithm for estimating the median of a huge read-once data set?"}
{"id":"61666","text":"T-test vs. one-way ANOVA"}
{"id":"26060","text":"Derive househould weights from a uniformly distributed person sample"}
{"id":"86149","text":"Is it possible to determine the set of variables contributing the most to first two principal components?"}
{"id":"70307","text":"How do I analyse principal component scores?"}
{"id":"111002","text":"Find relations without confounding variables?"}
{"id":"88880","text":"Why do PCA scores differ in sign?"}
{"id":"107898","text":"Multivariate Hypergeometric Distribution with \"or more\" Successes"}
{"id":"94061","text":"Help interpreting R linear model fit"}
{"id":"66215","text":"Calculation of AUC value from ROC Curve"}
{"id":"1444","text":"How should I transform non-negative data including zeros?"}
{"id":"22346","text":"Standardized beta weights for a multilevel regression"}
{"id":"192","text":"Cross tabulation of two categorical variables: recommended techniques"}
{"id":"14140","text":"How to best display graphically type II (beta) error, power and sample size?"}
{"id":"70899","text":"What correlation makes a matrix singular and what are implications of singularity or near-singularity?"}
{"id":"83193","text":"Probability of two people meeting when the arrival intervals and wait times are different"}
{"id":"43748","text":"How to test for equality of means for proportions? And two-sided or one-sided?"}
{"id":"56350","text":"How to compute probabilities of normally distributed variables?"}
{"id":"61944","text":"Multivariate normal distribution?"}
{"id":"3958","text":"What is your favorite, easy to use statistical analysis website or software package?"}
{"id":"56018","text":"Comparing two logit or probit curves using a single parameter"}
{"id":"4451","text":"Social network datasets"}
{"id":"85363","text":"Simplest example of uncorrelated but not independent X and Y?"}
{"id":"71260","text":"What is the intuition behind conditional Gaussian distributions?"}
{"id":"71269","text":"standard deviation in unbiased problem"}
{"id":"44992","text":"What are the values p, d, q, in ARIMA?"}
{"id":"14757","text":"Is an online chi square calculator available for larger tables?"}
{"id":"21151","text":"A reliable measure of series similarity - correlation just doesn't cut it for me"}
{"id":"46908","text":"R vs Python for Data Analysis"}
{"id":"26352","text":"PCA analysis with centered variables"}
{"id":"52063","text":"Why are the number of false positives independent of sample size, if we use p-values to compare two independent datasets?"}
{"id":"113023","text":"Should I use log transformation for my linear regression?"}
{"id":"105488","text":"Structural break test on an arma model any statistical software packages"}
{"id":"105489","text":"Representing a distance matrix in the plane"}
{"id":"40876","text":"Difference between 'link function' and 'canonical link function' for GLM"}
{"id":"3369","text":"Difference between FA and PCA"}
{"id":"30275","text":"What analysis (in SPSS) should I use for a repeated measures design with dichotomous outcome variable?"}
{"id":"72297","text":"Describing standard deviation"}
{"id":"92661","text":"How to show that the $E[x_i] = \\bar{X}$"}
{"id":"36036","text":"How to deal with missing values for PCA?"}
{"id":"87003","text":"create dataset for particular correlation for two variable"}
{"id":"94201","text":"Are these events independent?"}
{"id":"94208","text":"How to interpret results from a nonparametric Wilcoxon test"}
{"id":"26970","text":"Validation techniques for hierarchical model"}
{"id":"49942","text":"Why is the Fisher Information matrix positive semidefinite?"}
{"id":"1995","text":"Under what conditions should one use multilevel\/hierarchical analysis?"}
{"id":"51473","text":"\"matrix is not positive definite\" - even when highly correlated variables are removed"}
{"id":"32318","text":"Difference between standard error and standard deviation"}
{"id":"31598","text":"Is Amazon's \"average rating\" misleading?"}
{"id":"108211","text":"Joint test for absolute value of a mean"}
{"id":"6350","text":"ANOVA assumption normality\/normal distribution of residuals"}
{"id":"44139","text":"What is $P(X_1>X_2 , X_1>X_3,... , X_1>X_n)$?"}
{"id":"85702","text":"Weibull analysis"}
{"id":"51907","text":"What does it mean for two variables to be uncorrelated? How is it possible for two variables to be strongly related but still uncorrelated"}
{"id":"82947","text":"Intuitive examples of importance sampling"}
{"id":"105545","text":"$\\chi^2$ goodness of fit - how to compute expected counts when $\\exists$ unknown parameters"}
{"id":"67782","text":"How to compare two groups when one only has one data point?"}
{"id":"46217","text":"Find the distribution of w"}
{"id":"60670","text":"\"Accept null hypothesis\" or \"fail to reject the null hypothesis\"?"}
{"id":"99416","text":"test if two normally distributed random variables are equal"}
{"id":"63099","text":"Book recommendations for beginners about probability distributions"}
{"id":"77349","text":"Good books for Duration Analysis"}
{"id":"72646","text":"How to estimate the confidence interval using sample average and sample size ONLY?"}
{"id":"72648","text":"Interpretation of Kolmogorov-Smirnov Generated Distributions"}
{"id":"28653","text":"What is the best way to convert learning to rank to pairwise preference learning?"}
{"id":"2151","text":"How to plot ROC curves in multiclass classification?"}
{"id":"113442","text":"wilcox.test usage in R"}
{"id":"106063","text":"R-squared for linear mixed effects model"}
{"id":"10613","text":"Why are p-values uniformly distributed under the null hypothesis?"}
{"id":"59174","text":"Online logistic regression?"}
{"id":"8661","text":"Logistic Regression in R (Odds Ratio)"}
{"id":"111170","text":"How to interpret log of independent variable in Poisson regression?"}
{"id":"17890","text":"What is the difference between N and N-1 in calculating population variance?"}
{"id":"28842","text":"Significant predictor loses significance when second non-significant predictor is entered (log regression)"}
{"id":"1850","text":"Difference between Cohen's d and Hedges' g for effect size metrics"}
{"id":"68069","text":"Boxplot interpretation: is it correct that a boxplot is missing a whisker?"}
{"id":"54645","text":"Properties of moment-generating functions"}
{"id":"59434","text":"How to compare 2 regression slopes with R?"}
{"id":"25235","text":"What test should I use with shannon diversity index values?"}
{"id":"84197","text":"Probability of observing value EQUAL to +2 SD in a standard normal dist with parameters N(0,1)"}
{"id":"7004","text":"Calculating required sample size, precision of variance estimate?"}
{"id":"83352","text":"Sum of independent non-normal random variables"}
{"id":"5747","text":"If A and B are correlated with C, why are A and B not necessarily correlated?"}
{"id":"88228","text":"How do you calculate the Ordinary Least Squares estimated coefficients in a Multiple Regression Model?"}
{"id":"53135","text":"Probablity of getting sequence of K equal results while tossing coin N times"}
{"id":"20010","text":"How can I help ensure testing data does not leak into training data?"}
{"id":"1266","text":"A non-parametric repeated-measures multi-way Anova in R?"}
{"id":"93042","text":"non significance with one-way ANOVA, but significance with multiple comparisons"}
{"id":"113831","text":"Bias in lagged dependent variable"}
{"id":"78000","text":"Random Forests and Feature selection"}
{"id":"3136","text":"How to perform a test using R to see if data follows normal distribution"}
{"id":"92052","text":"Kolmogorov-Smirnov test for large sample"}
{"id":"45807","text":"What are the chances my wife has lupus?"}
{"id":"70846","text":"Imputing values using additional data w\/o knowing underlying structure"}
{"id":"68431","text":"Interpretting LASSO variable trace plots"}
{"id":"48199","text":"Are these values really different, given their confidence intervals?"}
{"id":"13399","text":"Calculating the 95th percentile: Comparing normal distribution, R Quantile, and Excel approaches"}
{"id":"91744","text":"More examples of inconsistent, but unbiased data and vice versa?"}
{"id":"92212","text":"In testing random numbers, what other tests should I use to complement the Kolmogorov-Smirnov?"}
{"id":"92210","text":"Negative AIC linear regression model"}
{"id":"68377","text":"Getting the inflection point(s) from a density plot"}
{"id":"73416","text":"In R, how do I fit a student-t distribution to a set of empirical data?"}
{"id":"73412","text":"normalising constant on exponential of exponential"}
{"id":"33519","text":"Distribution from which to sample integers evenly between 1 and 1000?"}
{"id":"18738","text":"what mean a p-value above 0.05 doing an ANOVA?"}
{"id":"29824","text":"Factor analysis and regression"}
{"id":"88711","text":"How does Support vector machine predict the classes for the test points?"}
{"id":"5853","text":"Forcing a set of numbers to a gaussian bell-curve"}
{"id":"43698","text":"Central Limit Theorem"}
{"id":"90828","text":"Forecast Daily Data with Multiple Seasonality"}
{"id":"45660","text":"What is the probability of tossing k heads in n trials of a fair coin?"}
{"id":"48781","text":"Transform higher order Markov Chain to first order"}
{"id":"78374","text":"binomial GLM output hugely affected by a factor level with all zeros"}
{"id":"50095","text":"Approximation of explained variance"}
{"id":"114043","text":"Clustering using different distance measures"}
{"id":"91467","text":"Understanding the effect of each parameter in a Monte Carlo Simulation"}
{"id":"104496","text":"Measures of association, Concordant and Discordant"}
{"id":"32000","text":"Excluding the components and only including the interaction term in a logistic regression?"}
{"id":"84116","text":"Estimates of variance from an iid sample"}
{"id":"84115","text":"Distribution of a vector divided by its sum"}
{"id":"88461","text":"Derive Variance of regression coefficient in simple linear regression"}
{"id":"30402","text":"How to calculate mean and standard deviation in R given confidence interval and a normal or gamma distribution?"}
{"id":"35929","text":"Why we solve the dual problem in SVM?"}
{"id":"96751","text":"How to calculate a maximum standard deviation?"}
{"id":"69407","text":"How do I write a mathematical equation for ARIMA (2,1,0) x (0,2,2) period 12"}
{"id":"77038","text":"Covariance matrix proposal distribution"}
{"id":"19771","text":"What are the implications of a regression model failing the JB normality test?"}
{"id":"20720","text":"pLSA - Probabilistic Latent Semantic Analysis, how to choose topic number?"}
{"id":"20725","text":"Rolling analysis with out-of sample"}
{"id":"7200","text":"Evaluate definite interval of normal distribution"}
{"id":"114203","text":"What is the error on measuring the phase of a sine wave?"}
{"id":"51835","text":"Can one compute confidence intervals for a census with high nonresponse rates?"}
{"id":"105037","text":"Kruskal-Wallis test for factorial design"}
{"id":"94103","text":"PCA on non-centered data"}
{"id":"9510","text":"Probability distribution for different probabilities"}
{"id":"58220","text":"What distribution does my data follow?"}
{"id":"23060","text":"Confused by MATLAB's implementation of ridge"}
{"id":"61798","text":"Example of distribution where large sample size is necessary for central limit theorem"}
{"id":"78329","text":"\"optimum\" tree from random forests"}
{"id":"110997","text":"Finding distribution function"}
{"id":"4612","text":"Good econometrics textbooks?"}
{"id":"104029","text":"Reproduce a confidence interval of linear regression in Excel"}
{"id":"23938","text":"How to correlate ordinal and nominal variables in SPSS?"}
{"id":"102744","text":"Log and natural log"}
{"id":"47074","text":"Does it make sense to cut a continuous variable to intervals?"}
{"id":"26712","text":"regression with multiple response variable in R"}
{"id":"39044","text":"how Neural Network works on image recognition"}
{"id":"203","text":"Group differences on a five point Likert item"}
{"id":"13314","text":"Is $R^2$ useful or dangerous?"}
{"id":"90499","text":"How to include number of not-yet-decayed radioactive atoms in MLE?"}
{"id":"6093","text":"Good book on statistics"}
{"id":"86597","text":"We said the data is normally distributed, based on the raw data or residual?"}
{"id":"20836","text":"Algorithms for automatic model selection"}
{"id":"90171","text":"Why is the p-value written with a supremum?"}
{"id":"67502","text":"Function of an efficient estimator?"}
{"id":"66670","text":"How to compare performance of probability estimating model"}
{"id":"112779","text":"APA-style forest plot using metafor"}
{"id":"111419","text":"Change in regression coeficient using multiple regression"}
{"id":"68528","text":"Probability distribution and uniform distribution in a sphere"}
{"id":"28515","text":"No degrees of freedom in LR rest of multinomial logistic regression"}
{"id":"47769","text":"Kriging on log transformed rainfall data"}
{"id":"110707","text":"Normal Quantile Quantile Plot Normalization"}
{"id":"94272","text":"MC Integration Interval Probability"}
{"id":"94271","text":"How to properly handle Infs in a statistical function?"}
{"id":"949","text":"When is logistic regression solved in closed form?"}
{"id":"12174","text":"Time taken to hit a pattern of heads and tails in a series of coin-tosses"}
{"id":"45050","text":"Diagnostics for logistic regression?"}
{"id":"35185","text":"Dimensionality reduction (SVD or PCA) on a large, sparse matrix"}
{"id":"34587","text":"Determining a correction factor and applying it to a second set of numbers"}
{"id":"114123","text":"Describing the association between dependent and independent variables"}
{"id":"3402","text":"What's the accuracy of data obtained through a random sample?"}
{"id":"112055","text":"Proper back-transformation of lognormal standard deviation to find confidence intervals around a mean"}
{"id":"108817","text":"Estimating the absolute decline of rates"}
{"id":"48145","text":"Extremely unequal sample size in logistic regression"}
{"id":"78285","text":"Comparison of two error distributions to determine \"goodness of fit\""}
{"id":"26719","text":"Finding the probability of getting a complete set from N classes of objects in M draws"}
{"id":"92794","text":"Intuition For Overlapping Confidence Intervals and Statistical Significance"}
{"id":"24416","text":"How to do a pretty scatter plot in R?"}
{"id":"28745","text":"Advantages of ROC curves"}
{"id":"65866","text":"Good methods for density plots of non-negative variables in R?"}
{"id":"18844","text":"When (and why) to take the log of a distribution (of numbers)?"}
{"id":"38290","text":"Why does standard error not involve population size?"}
{"id":"6563","text":"80% of missing data in a single variable"}
{"id":"90243","text":"One-Tailed Fisher's Exact Test"}
{"id":"82682","text":"How do I interpret this fitted vs residuals plot"}
{"id":"114516","text":"First order statistics (min) of n non-identical but independent normal variates"}
{"id":"49421","text":"Why are the eigenvalues of a covariance matrix corresponding to the data's variance?"}
{"id":"99099","text":"Neyman-Pearson lemma: critical region and hypothesis testing"}
{"id":"79292","text":"What are the methods for multivariate outlier detection?"}
{"id":"104117","text":"How to calculate Weighted mean using SPSS"}
{"id":"104110","text":"What is the difference between a parametric test and non-parametric tests?"}
{"id":"86040","text":"Rule of thumb for number of bootstrap samples"}
{"id":"40454","text":"Determine different clusters of 1d data from database"}
{"id":"43228","text":"Explain Kernel density chart"}
{"id":"46053","text":"Where to find a good beginner's R Primer?"}
{"id":"64156","text":"Should I use variance or standard deviation as weights to combine independent measurements?"}
{"id":"18905","text":"Where to find a large text corpus?"}
{"id":"33413","text":"Continuous dependent variable with ordinal independent variable"}
{"id":"6652","text":"What, precisely, is a confidence interval?"}
{"id":"96835","text":"chisq.test in R doesn't produce same answer as by-hand"}
{"id":"33354","text":"When are two normally distributed random variables jointly bivariate normal?"}
{"id":"44838","text":"How are the standard errors of coefficients calculated in a regression?"}
{"id":"64343","text":"How to Interpret a negative log linear regression coefficient?"}
{"id":"27916","text":"Standard errors for multiple regression coefficients?"}
{"id":"51699","text":"Moment generating function of the inner product of two gaussian random vectors"}
{"id":"56515","text":"Estimate PDF from only positive data"}
{"id":"79932","text":"Does MLE always mean we know the underlying PDF of our data, and does EM mean we don't?"}
{"id":"72370","text":"How to perform unsupervised Random Forest classification using Breiman's code?"}
{"id":"60766","text":"How to test for significant difference between 2 binary variables in one sample"}
{"id":"20514","text":"Books for self-studying time series analysis?"}
{"id":"57840","text":"How does dsgh work in R?"}
{"id":"67800","text":"Creating a Quality Index"}
{"id":"35566","text":"How do I rank variables collected by a Likert scale questionnaire?"}
{"id":"51718","text":"Assessing approximate distribution of data based on a histogram"}
{"id":"70605","text":"PMF of two Poisson RV subtracted from each other"}
{"id":"88588","text":"Regression model for proportion or count when counts of outcome and total events are often zero"}
{"id":"19891","text":"Interpreting main effect and interaction"}
{"id":"61179","text":"GLM Distribution of Residuals"}
{"id":"56124","text":"subtraction of two multivariate normal distribution"}
{"id":"99192","text":"Why should the feature be standardized before feeding to the neural network algorithm"}
{"id":"62880","text":"No linear effects but a quadratic effect"}
{"id":"73077","text":"Analyzing reflected and transformed variables II"}
{"id":"36305","text":"Why do regression coefficients change when excluding variables?"}
{"id":"83865","text":"JAGS burn-in phase takes ZERO time?"}
{"id":"41685","text":"Why does increasing the number of features reduce performance?"}
{"id":"104250","text":"How to determine whether a categorical variable is statistically significant?"}
{"id":"32248","text":"Effect Size\/Mean Squared Error from Linear Mixed-Model in R"}
{"id":"60076","text":"Why are 5+ expected frequencies needed in Pearson's chi-square"}
{"id":"108697","text":"Difference between Time series and repeated measures analysis?"}
{"id":"26271","text":"Comparing two classifier accuracy results for statistical significance with t-test"}
{"id":"44201","text":"Link between moment-generating function and characteristic function"}
{"id":"58486","text":"Is it required for panel data to use dummy variables?"}
{"id":"8881","text":"How to perform a regression model with a mix of binary, nominal, ordinal, and continuous predictors?"}
{"id":"8318","text":"Interpretation of log transformed predictors in logistic regression"}
{"id":"9926","text":"Is there any use for the quantity $\\int f(x)^2 dx$ in statistics or information theory?"}
{"id":"108085","text":"Interpretation of Linear SVM Coefficients"}
{"id":"66448","text":"Should covariates that are not statistically significant be 'kept in' when creating a model?"}
{"id":"26465","text":"Behavior of a sum of kernel functions"}
{"id":"63177","text":"In GLIM, Is the link function of mean linear in explanatory variables?"}
{"id":"59526","text":"Correction term in variance of mixture"}
{"id":"66273","text":"Wilcoxon two-sample test approximated by z-statistic"}
{"id":"35608","text":"Detecting outstanding events"}
{"id":"27786","text":"How to compare ratings of airlines on a Likert scale when different participants have rated different airlines?"}
{"id":"3438","text":"Calculating percentile of normal distribution"}
{"id":"79843","text":"Is the W statistic outputted by wilcox.test() in R the same as the U statistic?"}
{"id":"14168","text":"How to generate two correlated categorical variables?"}
{"id":"38053","text":"Help with pretest-postest data analysis"}
{"id":"38870","text":"Confusion regarding a probability problem"}
{"id":"20425","text":"having trouble applying hidden markov models to my game"}
{"id":"101102","text":"Can non-normal data be used for factor analysis?"}
{"id":"86546","text":"Text Books on Text Mining in R"}
{"id":"31326","text":"How should one interpret the comparison of means from different sample sizes?"}
{"id":"31327","text":"Power analysis of a secondary data set with a multi-level model"}
{"id":"89295","text":"Determining If Transformation of Variables X Are Needed"}
{"id":"41934","text":"Non-parametric alternative for 2-way ANOVA"}
{"id":"32520","text":"Sequence mining in univariate discrete data using R"}
{"id":"96722","text":"How can dummy variables are able to add in Stata?"}
{"id":"104567","text":"Centering vs. Standarizing which one is better?"}
{"id":"65779","text":"Why is coefficient of determination used to assess fit of a least squares line?"}
{"id":"6966","text":"Why continue to teach and use hypothesis testing?"}
{"id":"48302","text":"A constant as an admissible estimator"}
{"id":"51456","text":"Why does the correlation coefficient between X and X-Y random variables tend to be 0.7"}
{"id":"25094","text":"How to interpret regression coefficients for a variable with takes positive and negative values?"}
{"id":"18391","text":"How to calculate the difference of two slopes?"}
{"id":"91389","text":"How to use gain and splitinfo for continuous attributes?"}
{"id":"25708","text":"Tests significative with parametric calculations and non-significative with non-parametric ones!"}
{"id":"97659","text":"Appropriate post-hoc test after a mixed design anova in R"}
{"id":"64370","text":"How to use SVD for dimensionality reduction"}
{"id":"93768","text":"impact on hypothesis if t-stat is equal to t-critical value for one-tail two-sample t-test?"}
{"id":"4964","text":"Is interaction possible between two continuous variables?"}
{"id":"103863","text":"Are there concerns with doing a generalized additive model with a smoothing term of multiple variables?"}
{"id":"45165","text":"MANOVA vs. Repeated Measure ANOVA"}
{"id":"29889","text":"Monte Carlo approach to compute prediction interval for GLM (Poisson & Neg Bin) with R"}
{"id":"66868","text":"random number generation and probability problems"}
{"id":"104970","text":"Quantitative method to determine necessary and sufficient causes"}
{"id":"665","text":"What's the difference between probability and statistics?"}
{"id":"78795","text":"Interpreting a confidence interval"}
{"id":"24676","text":"Difference between one-tailed and two-tailed testing?"}
{"id":"84175","text":"Confidence Interval for a Fraction?"}
{"id":"3549","text":"F and t statistics in a regression"}
{"id":"80885","text":"Graphing data large and small"}
{"id":"32405","text":"How is Poisson distribution different to normal distribution?"}
{"id":"58242","text":"Why are MA(q) time series models called \"moving averages\"?"}
{"id":"113680","text":"Find linear subsets in a 2D point (xy) data"}
{"id":"125","text":"What is the best introductory Bayesian statistics textbook?"}
{"id":"45825","text":"What hypothesis for A is better than B?"}
{"id":"21592","text":"Optimising for Precision-Recall curves under class imbalance"}
{"id":"92788","text":"What is this kind of graph called? (2D grid with a color-coded scale for a 3rd variable)"}
{"id":"40977","text":"Is there a term for $P(A\\cap B)\/[P(A)P(B)]$?"}
{"id":"40976","text":"Can a dichotomous variable (yes\/no) be merged with a Likert measure (1,2,3,4) using z scores?"}
{"id":"27626","text":"Does the size of the reference sample matter in logistic regression?"}
{"id":"92895","text":"Odds Ratio Coefficient"}
{"id":"38511","text":"If MGF exists, does it imply that all $E(X^n)$ exist?"}
{"id":"87110","text":"Why is it that it is self-defeating to use the posterior mode as the bayes estimator in this case?"}
{"id":"44928","text":"ANCOVA and its disturbing assumptions"}
{"id":"56852","text":"Overall rank from multiple ranked lists"}
{"id":"90113","text":"When I add higher order terms in a regression, do I need to add the main effect?"}
{"id":"63260","text":"Finding an acceptable upper limit on a random generator with an unknown distribution"}
{"id":"55131","text":"Solved Assumptions of Linear Regression"}
{"id":"54954","text":"Interpreting ANOVA results"}
{"id":"30428","text":"What is a good book on experimental design and data analysis relevant to industrial bakery applications?"}
{"id":"80157","text":"Relationship Between Correlation and Multicollinearity"}
{"id":"94872","text":"Functions of Independent Random Variables"}
{"id":"82142","text":"Calculating concordance using either Pearson or Spearman (rank) correlations"}
{"id":"46523","text":"How to simulate artificial data for logistic regression?"}
{"id":"9398","text":"Supervised learning with \"rare\" events, when rarity is due to the large number of counter-factual events"}
{"id":"23005","text":"Deriving ordered statistics minimum cdf"}
{"id":"114149","text":"How to determine whether a set of data are qualitative or quantitative?"}
{"id":"18750","text":"Hosmer-Lemeshow vs AIC for logistic regression"}
{"id":"49510","text":"k-means and different metrics"}
{"id":"46720","text":"Repeated measure problem"}
{"id":"41048","text":"Expected value (Chi-Squared)"}
{"id":"29713","text":"What is covariance in plain language?"}
{"id":"14812","text":"Poisson regression instead of log transformation of a continuous outcome variable?"}
{"id":"91286","text":"reshape data from wide to long in R"}
{"id":"101074","text":"Nonparametric test when variances are unequal"}
{"id":"83022","text":"How to fit data that looks like a gaussian?"}
{"id":"22439","text":"Incremental or online or single pass or data stream clustering refers to the same thing?"}
{"id":"24878","text":"Computation of new standard deviation using old standard deviation after change in dataset"}
{"id":"9664","text":"What are examples where a \"naive bootstrap\" fails?"}
{"id":"67243","text":"Determining an optimum and distribution range for a given species abundance vs an environmental gradient data"}
{"id":"35982","text":"How to interpret regression coefficients when response was transformed by the 4th root?"}
{"id":"77099","text":"Testing equality of variances without the data, just from the variances and the mean"}
{"id":"74542","text":"Why does the Lasso provide Variable Selection?"}
{"id":"8107","text":"How do I interpret the results of a Breusch–Pagan test?"}
{"id":"28942","text":"Computing and plotting a correlogram"}
{"id":"47746","text":"Logit versus Probit"}
{"id":"76398","text":"Ordinal item on Likert scale as dependent variable in regression"}
{"id":"15662","text":"Do I need to use t-test?"}
{"id":"91510","text":"Correlation of categorical and interval variables"}
{"id":"87601","text":"What does this test mean?"}
{"id":"7535","text":"Strategy for deciding appropriate model for count data"}
{"id":"80555","text":"Statistical test for a random die roll?"}
{"id":"66094","text":"Meaning of Likelihood in layman's terms"}
{"id":"32808","text":"Comparison between multi-level modelling and generalized estimating equation"}
{"id":"30514","text":"Is Marliyn vos Savant correct about the 2\/3 odds in her version of the Monty Hall problem?"}
{"id":"13475","text":"How to specify the random term in lme, lmer and aov?"}
{"id":"28873","text":"Goodness of fit test for a mixture in R"}
{"id":"97257","text":"Stepwise regression in R – Critical p-value"}
{"id":"62741","text":"Correlation between discrete and continuous variables"}
{"id":"48714","text":"Prerequisites for AIC model comparison"}
{"id":"31150","text":"What is a lift chart?"}
{"id":"22774","text":"Dimensionality reduction using self-organizing map"}
{"id":"89633","text":"Calculate Standard deviation from mean and confidence interval (95%) in R"}
{"id":"16574","text":"Are confidence intervals always symmetrical around the point estimate?"}
{"id":"90098","text":"How can I statistically compare two time-series?"}
{"id":"37845","text":"Two negative beta's in a curvilinear regression when mean centered or using standardized values"}
{"id":"25811","text":"Is the R language reliable for the field of economics?"}
{"id":"15505","text":"Converting standard error to standard deviation?"}
{"id":"71064","text":"Test to see what population an observation came from"}
{"id":"60558","text":"OLS Regression for binary outcome"}
{"id":"52423","text":"How to perform step() when n < p in R?"}
{"id":"68421","text":"Mean centering and setting standard deviation to 1 in data"}
{"id":"2915","text":"What is a good internet based source of information on Hierarchical Modeling?"}
{"id":"15740","text":"What are some quick initial tests to check the quality of a new dataset?"}
{"id":"113781","text":"trouble using highfrequency package in R"}
{"id":"18241","text":"Chi-squared goodness-of-fit statistic if expected frequency is zero"}
{"id":"6581","text":"What is Deviance? (specifically in CART\/rpart)"}
{"id":"87168","text":"the relationship between hypothesis test and confidence interval?"}
{"id":"46322","text":"Understanding signficant interaction with non-significant main effects"}
{"id":"2493","text":"Managing error with GPS routes (theoretical framework?)"}
{"id":"45671","text":"Normality of residuals vs sample data; what about t-tests?"}
{"id":"114926","text":"Generating even-sized clusters in scikit-learn"}
{"id":"91493","text":"Normal curve probability mean"}
{"id":"77542","text":"R gives weird dispersion value"}
{"id":"35544","text":"Recommend an enjoyable \/ introductory book on Statistics"}
{"id":"48582","text":"Generalized linear mixed model in R"}
{"id":"26024","text":"Moving-average model error terms"}
{"id":"15285","text":"Problem with calculating $R^2$"}
{"id":"90380","text":"Interpreting negative coordinates and origin in 2D correspondence analysis plot"}
{"id":"11113","text":"Wrong results using ANOVA with repeated measures"}
{"id":"29126","text":"Confidence interval for the height of a histogram bar"}
{"id":"55316","text":"Is the Mundlak fixed effects procedure applicable for logistic regression with dummies?"}
{"id":"93370","text":"In simple linear regression, why the covariance between y bar and beta1 hat is zero?"}
{"id":"15323","text":"How to interpret the divergence of Fisher information expectation"}
{"id":"29726","text":"How to determine significant subgroups of data inputs?"}
{"id":"95235","text":"What kind of test should I use?"}
{"id":"61906","text":"Covariate vs. factors"}
{"id":"113877","text":"Central Limit Theorem, what does it really say?"}
{"id":"109063","text":"Algorithm for rating books: Relative perception"}
{"id":"76248","text":"Analysis to perform"}
{"id":"72940","text":"Covariance matrix of least squares estimator $\\hat{\\beta}$"}
{"id":"6","text":"The Two Cultures: statistics vs. machine learning?"}
{"id":"67533","text":"sum of noncentral Chi-square random variables"}
{"id":"32094","text":"Linear model overfit due to too many covariates?"}
{"id":"102791","text":"Convergence of a sequence of random variables"}
{"id":"87866","text":"A simple optimization problem"}
{"id":"23417","text":"Dynamic recommender systems"}
{"id":"38446","text":"What do parallel lines in a fitted values vs. residual plot mean? How should I transform my data?"}
{"id":"28934","text":"Confidence interval about the difference between false positive and false negative proportions"}
{"id":"80791","text":"Consistency of OLS"}
{"id":"41038","text":"Conditional Expectation \/ Estimator Confusion"}
{"id":"96543","text":"multicollinearity in OLS regression"}
{"id":"64924","text":"How to cluster a distance matrix?"}
{"id":"96278","text":"How can I use logistic regression with categorical variables?"}
{"id":"80500","text":"Collectively evaluate a number of normal distributions"}
{"id":"97912","text":"Which equal correlations of three random variables are possible?"}
{"id":"103345","text":"My distribution is normal; Kolmogorov-Smirnov test doesn't agree"}
{"id":"26454","text":"Proof that if higher moment exists then lower moment also exists"}
{"id":"14226","text":"Given the power of computers these days, is there ever a reason to do a chi-squared test rather than Fisher's exact test?"}
{"id":"95891","text":"If you know a factor is significant, what is a reason why R might think it's not?"}
{"id":"51946","text":"How to calculate the signal-to-noise ratio (SNR) in an image?"}
{"id":"32169","text":"How can I generate data with a prespecified correlation matrix?"}
{"id":"17076","text":"Math Statistics Bell Curve Computing % correct given 2 numbers (C#)"}
{"id":"86881","text":"Correlated Regressors - Motorway Accidents"}
{"id":"105277","text":"How to create a z-score table"}
{"id":"103801","text":"Is it meaningful to calculate Pearson or Spearman correlation between two Boolean vectors?"}
{"id":"3215","text":"Trigonometric operations on standard deviations"}
{"id":"57259","text":"Highly unbalanced test data set and balanced training data in classification"}
{"id":"81880","text":"Logistic Regression - Model Selection Method"}
{"id":"22009","text":"What is the real answer to the Birthday question?"}
{"id":"85436","text":"What could it mean to \"Rotate\" a distribution?"}
{"id":"3038","text":"How to test hypothesis of no group differences?"}
{"id":"90130","text":"How to test a Random Number generator in R?"}
{"id":"58564","text":"Help me understand Bayesian prior and posterior distributions"}
{"id":"56461","text":"Book Recommendation for Mathematical Statistics"}
{"id":"48261","text":"Bayesian and frequentist approaches: What are some success stories for the former?"}
{"id":"26073","text":"Reference with distributions with various properties"}
{"id":"25181","text":"How to the predict the number of daily visitors in six months' time based on the past three?"}
{"id":"5235","text":"What is the expected correlation between residual and the dependent variable?"}
{"id":"48396","text":"How often do you have to roll a 6-sided dice to obtain every number at least once?"}
{"id":"26650","text":"How do I reference a regression model's coefficient's standard errors?"}
{"id":"76484","text":"How to scale a variable to a specific mean and standard deviation"}
{"id":"103684","text":"How to analyze a variable measured on a Likert scale and its interaction with another variable?"}
{"id":"4059","text":"Maximum Likelihood formula for Naive Bayes"}
{"id":"79289","text":"Why is \"statistically significant\" not enough?"}
{"id":"36","text":"Examples for teaching: Correlation does not mean causation"}
{"id":"3961","text":"Random permutation of a vector with a fixed expected sample correlation to the original?"}
{"id":"47951","text":"calculate partial autocorrelation"}
{"id":"53000","text":"Fitting a logistic regression using lassoglm in matlab"}
{"id":"1963","text":"Looking for good introductory treatment of meta-analysis"}
{"id":"68243","text":"AR(1) coefficient is correlation?"}
{"id":"27951","text":"When are Log scales appropriate?"}
{"id":"10234","text":"Meaning of probability notations $P(z;d,w)$ and $P(z|d,w)$"}
{"id":"32864","text":"How to get SSE for predictions using SAS?"}
{"id":"83554","text":"Linear regression not fitting well"}
{"id":"5347","text":"How can I efficiently model the sum of Bernoulli random variables?"}
{"id":"89472","text":"Why would adjusting in a model change the direction of an effect?"}
{"id":"57214","text":"How to analyze data with more than one associated categorical dependent variables?"}
{"id":"33165","text":"Strange pattern of residuals"}
{"id":"16552","text":"Probability of mean of random sample being in a certain range"}
{"id":"49666","text":"Non-significant intercept in regression with a two level factor in R"}
{"id":"899","text":"Separating two populations from the sample"}
{"id":"6619","text":"Probability of getting between"}
{"id":"33315","text":"Optimal software package for bayesian analysis"}
{"id":"64652","text":"Calculating standard deviation associated with percentage change"}
{"id":"105657","text":"Adding new item to recommender's options?"}
{"id":"87963","text":"Does the slope of a regression between observed and predicted values always equal the $R^2$ of the original model?"}
{"id":"29815","text":"How to interpret the output for calculating concordance index (c-index)?"}
{"id":"115192","text":"UnReSolved Mean Adjust DataSet to achieve .5 Mean"}
{"id":"113334","text":"Mann Whitney test with unequal variances"}
{"id":"4298","text":"Use of kernel density estimate in Naive Bayes Classifier?"}
{"id":"88388","text":"Cross-validation for mixed-effect logistic regression?"}
{"id":"62916","text":"Confidence interval for the product of two parameters"}
{"id":"36054","text":"What is the difference between Variance and Standard Deviation (SD) intuitively?"}
{"id":"65637","text":"Fisher-type unit-root test for panel data. Results interpretation in Stata"}
{"id":"72623","text":"cluster - class dependency bag of words"}
{"id":"7308","text":"Can the empirical Hessian of an M-estimator be indefinite?"}
{"id":"32600","text":"In what order should you do linear regression diagnostics?"}
{"id":"25211","text":"Simple combination\/probability question based on string-length and possible-characters"}
{"id":"20039","text":"Effect of moving average parameter on variability and variance of demand"}
{"id":"45124","text":"Central limit theorem for sample medians"}
{"id":"84334","text":"how to create predictive model in R when outcome variable has more than 10 classes"}
{"id":"79755","text":"How to check if data constitute a time series with simple moving average method?"}
{"id":"68834","text":"What is the benefit of breaking up a continuous predictor variable?"}
{"id":"59882","text":"How do I use a mean and 95% confidence intervals to draw from a distribution?"}
{"id":"74622","text":"Converting standardized betas back to original variables"}
{"id":"68261","text":"Performance evaluation of auto.arima in R and UCM on one dataset"}
{"id":"35719","text":"Improvement of regression model"}