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dump command in Linux with examples - GeeksforGeeks	30 Sep, 2019 dump command in Linux is used for backup the filesystem to some storage device. It backs up the complete file system and not the individual files. In other words, it backups the required files to tape, disk or any other storage device for safe storage. The dump command in Linux works only with ext2/ext3 fi...	[ { "code": null, "e": 23657, "s": 23629, "text": "\n30 Sep, 2019" }, { "code": null, "e": 24289, "s": 23657, "text": "dump command in Linux is used for backup the filesystem to some storage device. It backs up the complete file system and not the individual files. In other words, ...
Split a string in equal parts (grouper in Python) - GeeksforGeeks	16 Jun, 2020 Grouper recipe is an extended toolset made using an existing itertool as building blocks. It collects data into fixed-length chunks or blocks. Existing Itertools Used:izip_longest(*iterables[, fillvalue]) : Make an iterator that aggregates elements from each of the iterables. If the iterables are of uneven...	[ { "code": null, "e": 24212, "s": 24184, "text": "\n16 Jun, 2020" }, { "code": null, "e": 24355, "s": 24212, "text": "Grouper recipe is an extended toolset made using an existing itertool as building blocks. It collects data into fixed-length chunks or blocks." }, { "code"...
Working with Geospatial Data in Python — PART 1 \| by Ben Bogart \| Towards Data Science	Let's be honest; geospatial data is scary. I don’t think there is any good reason for this other than that information on how to work with geospatial data in Python is not as easily accessible as information on working with other kinds of data. This is the first article in a series focused on various must-know aspects ...	[ { "code": null, "e": 416, "s": 171, "text": "Let's be honest; geospatial data is scary. I don’t think there is any good reason for this other than that information on how to work with geospatial data in Python is not as easily accessible as information on working with other kinds of data." }, { ...
Lua - Database Access	For simple data operations, we may use files, but, sometimes, these file operations may not be efficient, scalable, and powerful. For this purpose, we may often switch to using databases. LuaSQL is a simple interface from Lua to a number of database management systems. LuaSQL is the library, which provides support for ...	[ { "code": null, "e": 2461, "s": 2103, "text": "For simple data operations, we may use files, but, sometimes, these file operations may not be efficient, scalable, and powerful. For this purpose, we may often switch to using databases. LuaSQL is a simple interface from Lua to a number of database man...
Print boundary elements of a given matrix in clockwise manner - GeeksforGeeks	26 Apr, 2021 Given a matrix arr[][] of size N * M, the task is to print the boundary elements of the given matrix in a clockwise form. Examples: Input: arr[][] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9} }Output: 1 2 3 6 9 8 7 4Explanation:Boundary elements of the matrix are: 1 2 3 4 5 6 7 8 <strong>9 Therefore, the sequence of...	[ { "code": null, "e": 24841, "s": 24813, "text": "\n26 Apr, 2021" }, { "code": null, "e": 24963, "s": 24841, "text": "Given a matrix arr[][] of size N * M, the task is to print the boundary elements of the given matrix in a clockwise form." }, { "code": null, "e": 2497...
Getting a syntax error unknown fields in SAP ABAP	You need to add spaces after or before braces as follows − SELECT * FROM CNTRB WHERE AGE > 30 AND CNTRB > 10000 AND NOT ( FUND1 = 'value' AND FUND2 = '0' )	[ { "code": null, "e": 1121, "s": 1062, "text": "You need to add spaces after or before braces as follows −" }, { "code": null, "e": 1221, "s": 1121, "text": "SELECT *\nFROM CNTRB\nWHERE AGE > 30\nAND CNTRB > 10000\nAND NOT ( FUND1 = 'value' AND FUND2 = '0' )" } ]
Style input type submit with CSS	The input type button can be a submit button or reset button. With CSS, we can style any button on a web page. You can try to run the following code to style input type submit: Live Demo <!DOCTYPE html> <html> <head> <style> input[type = submit] { background-color: orange; bord...	[ { "code": null, "e": 1173, "s": 1062, "text": "The input type button can be a submit button or reset button. With CSS, we can style any button on a web page." }, { "code": null, "e": 1239, "s": 1173, "text": "You can try to run the following code to style input type submit:" },...
How to hide status bar in Android using Kotlin?	This example demonstrates how to hide status bar in Android using Kotlin. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main.xml. <?xml version="1.0" encoding="utf-8"?> <RelativeLayo...	[ { "code": null, "e": 1136, "s": 1062, "text": "This example demonstrates how to hide status bar in Android using Kotlin." }, { "code": null, "e": 1265, "s": 1136, "text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to c...
ASP.NET Core - DBContext	The Entity Framework enables you to query, insert, update, and delete data, using Common Language Runtime (CLR) objects known as entities. The Entity Framework maps the entities and relationships that are defined in your model to a database. It also provides facilities to − Materialize data returned from the database a...	[ { "code": null, "e": 2736, "s": 2461, "text": "The Entity Framework enables you to query, insert, update, and delete data, using Common Language Runtime (CLR) objects known as entities. The Entity Framework maps the entities and relationships that are defined in your model to a database. It also pro...
MongoDB Interview Questions	Dear readers, these MongoDB Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of MongoDB. As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions ...	[ { "code": null, "e": 2991, "s": 2553, "text": "Dear readers, these MongoDB Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of MongoDB. As per my experience good interviewers hardly plan to ask...
Moore - Penrose Pseudoinverse \| Mathematics - GeeksforGeeks	03 Oct, 2019 In linear algebra pseudoinverse () of a matrix A is a generalization of the inverse matrix. The most common use of pseudoinverse is to compute the best fit solution to a system of linear equations which lacks a unique solution. Moore – Penrose inverse is the most widely known type of matrix pseudoinverse. ...	[ { "code": null, "e": 24368, "s": 24340, "text": "\n03 Oct, 2019" }, { "code": null, "e": 24753, "s": 24368, "text": "In linear algebra pseudoinverse () of a matrix A is a generalization of the inverse matrix. The most common use of pseudoinverse is to compute the best fit solutio...
Transfer learning using pytorch — Part 1 \| by Vishnu Subramanian \| Towards Data Science	Ever wondered why ML models have to learn every time from scratch . What if the models can use knowledge learnt from recognising cats, dogs ,fish ,cars , bus and many more to identify a distracted car driver or to identify plant disease .In transfer learning we use a pre trained neural network in extracting features an...	[ { "code": null, "e": 600, "s": 172, "text": "Ever wondered why ML models have to learn every time from scratch . What if the models can use knowledge learnt from recognising cats, dogs ,fish ,cars , bus and many more to identify a distracted car driver or to identify plant disease .In transfer learn...
Python String min() Method	Python string method min() returns the min alphabetical character from the string str. Following is the syntax for min() method − min(str) str − This is the string from which min alphabetical character needs to be returned. str − This is the string from which min alphabetical character needs to be returned. This meth...	[ { "code": null, "e": 2332, "s": 2244, "text": "Python string method min() returns the min alphabetical character from the string str." }, { "code": null, "e": 2375, "s": 2332, "text": "Following is the syntax for min() method −" }, { "code": null, "e": 2385, "s":...
Find value of (n^1 + n^2 + n^3 + n^4) mod 5 for given n - GeeksforGeeks	07 Apr, 2021 You are given a function f(n) = (n1 + n2 + n3 + n4), you have to find the value of f(n) mod 5 for any given value of positive integer n. Note: n may be large enough, such that f(n) > 1018. Examples : Input : n = 4 Output : 0 Explanation : f(4) = 4 + 16 + 64 + 256 = 330, f(4) mod 5 = 330 mod 5 = 0. Inpu...	[ { "code": null, "e": 25214, "s": 25186, "text": "\n07 Apr, 2021" }, { "code": null, "e": 25416, "s": 25214, "text": "You are given a function f(n) = (n1 + n2 + n3 + n4), you have to find the value of f(n) mod 5 for any given value of positive integer n. Note: n may be large enoug...
Spice Up Your Python Visualizations with Matplotlib Animations \| by Tony Yiu \| Towards Data Science	If you are interested in my code, you can find it here on my GitHub. The code throws an error (that I could not get rid of for the life of me) the first time you run it. But if you just execute the same cell again, it will run fine. This post is not an obviously data science post but it does have data science and busin...	[ { "code": null, "e": 405, "s": 172, "text": "If you are interested in my code, you can find it here on my GitHub. The code throws an error (that I could not get rid of for the life of me) the first time you run it. But if you just execute the same cell again, it will run fine." }, { "code": ...
R - Lists	Lists are the R objects which contain elements of different types like − numbers, strings, vectors and another list inside it. A list can also contain a matrix or a function as its elements. List is created using list() function. Following is an example to create a list containing strings, numbers, vectors and a logica...	[ { "code": null, "e": 2632, "s": 2402, "text": "Lists are the R objects which contain elements of different types like − numbers, strings, vectors and another list inside it. A list can also contain a matrix or a function as its elements. List is created using list() function." }, { "code": n...
Contingency Tables, Chi-Squared and Cramer’s V \| by Jeffrey Hanif Watson \| Towards Data Science	Introduction During the course of a recent project, I had to check a feature for associations (the lack of independence) with multiple other features. For convenience, I wrote a couple of functions to perform, and help interpret, tests for association between these categorical features. In this post, I will demonstrate...	[ { "code": null, "e": 184, "s": 171, "text": "Introduction" }, { "code": null, "e": 573, "s": 184, "text": "During the course of a recent project, I had to check a feature for associations (the lack of independence) with multiple other features. For convenience, I wrote a couple o...
Print Bracket Number in C++	In this problem, we are given expression. And we have to print the bracket number sequence. Let’s look at an example to understand the problem better. Example, Input : ((()())()) Output : 1233442551 Explanation − Here we have encountered 5 bracket pairs and we have printed them in a sequence of their[ occurrence. Now s...	[ { "code": null, "e": 1213, "s": 1062, "text": "In this problem, we are given expression. And we have to print the bracket number sequence. Let’s look at an example to understand the problem better." }, { "code": null, "e": 1222, "s": 1213, "text": "Example," }, { "code": ...
EDA: Feature Engineering and Encoding Categorical Data \| by Wesley Neill \| Towards Data Science	Last week, we began our series on regression techniques with some exploration of the Ames, Iowa real-estate dataset, using scatterplots and bar plots. These techniques are meant to build basic intuition about patterns in our data. Plotting our data also allows us to sift through and get to know the variables we are wor...	[ { "code": null, "e": 476, "s": 47, "text": "Last week, we began our series on regression techniques with some exploration of the Ames, Iowa real-estate dataset, using scatterplots and bar plots. These techniques are meant to build basic intuition about patterns in our data. Plotting our data also al...
Building an ML application using MLlib in Pyspark \| by Yashwanth Madaka \| Towards Data Science	Apache Spark is one of the on-demand big data tools which is being used by many companies around the world. Its ability to do In-Memory computation and Parallel-Processing are the main reasons for the popularity of this tool. MLlib is a scalable Machine learning library which is present alongside other services like Sp...	[ { "code": null, "e": 398, "s": 172, "text": "Apache Spark is one of the on-demand big data tools which is being used by many companies around the world. Its ability to do In-Memory computation and Parallel-Processing are the main reasons for the popularity of this tool." }, { "code": null, ...
User defined and custom exceptions in Java	An exception is an issue (run time error) that occurred during the execution of a program. For understanding purpose let us look at it in a different manner. Generally, when you compile a program, if it gets compiled without a .class file will be created, this is the executable file in Java, and every time you execute ...	[ { "code": null, "e": 1220, "s": 1062, "text": "An exception is an issue (run time error) that occurred during the execution of a program. For understanding purpose let us look at it in a different manner." }, { "code": null, "e": 1624, "s": 1220, "text": "Generally, when you comp...
Build a Machine Learning simulation tool with Dash \| by Pierre-Louis Bescond \| Towards Data Science	You have done it! It all started with a business issue raised by your colleagues and you went through the dark valleys of data consolidation, cleansing, feature engineering, and modeling. Your model’s robustness is checked and you would like to share your findings. However, not everyone is familiar with RMSE, Confusion...	[ { "code": null, "e": 313, "s": 47, "text": "You have done it! It all started with a business issue raised by your colleagues and you went through the dark valleys of data consolidation, cleansing, feature engineering, and modeling. Your model’s robustness is checked and you would like to share your ...
Face landmarks detection with MediaPipe Facemesh \| by Benson Ruan \| Towards Data Science	Tensorflow.js released the MediaPipe Facemesh model in March, it is a lightweight machine learning pipeline predicting 486 3D facial landmarks to infer the approximate surface geometry of a human face. During the pandemic time, I stay at home and play with this facemesh model. I would like to remind people of the impor...	[ { "code": null, "e": 373, "s": 171, "text": "Tensorflow.js released the MediaPipe Facemesh model in March, it is a lightweight machine learning pipeline predicting 486 3D facial landmarks to infer the approximate surface geometry of a human face." }, { "code": null, "e": 676, "s": 37...
Cognizant GenC Interview Experience 2021 - GeeksforGeeks	15 Mar, 2021 Round 1: Round 1 is an Aptitude round that is on the AMCAT Platform. This round consists of four sections namely. Quantitative Aptitude (24 questions: 35 minutes) Logical Reasoning (25 questions: 35 minutes) Code debugging/Automata Fix (7 questions: 20 minutes) Essay question (1 question: 15 minutes) Essay...	[ { "code": null, "e": 25494, "s": 25466, "text": "\n15 Mar, 2021" }, { "code": null, "e": 25608, "s": 25494, "text": "Round 1: Round 1 is an Aptitude round that is on the AMCAT Platform. This round consists of four sections namely." }, { "code": null, "e": 25657, "...
How to convert File into a Stream in Java?	Let’s say we have a file “input.txt” here in the directory E:/ with the following content: Open a file with Bufferedreader. We have taken the above file here which is located at E: directory; BufferedReader buffReader = Files.newBufferedReader(Paths.get("E:\\input.txt"),StandardCharsets.UTF_8); Now get the stream of li...	[ { "code": null, "e": 1153, "s": 1062, "text": "Let’s say we have a file “input.txt” here in the directory E:/ with the following content:" }, { "code": null, "e": 1254, "s": 1153, "text": "Open a file with Bufferedreader. We have taken the above file here which is located at E: d...
The Anonymous Functions in Python	These functions are called anonymous because they are not declared in the standard manner by using the def keyword. You can use the lambda keyword to create small anonymous functions. Lambda forms can take any number of arguments but return just one value in the form of an expression. They cannot contain commands or mu...	[ { "code": null, "e": 1246, "s": 1062, "text": "These functions are called anonymous because they are not declared in the standard manner by using the def keyword. You can use the lambda keyword to create small anonymous functions." }, { "code": null, "e": 1402, "s": 1246, "text":...
# and ## Operators in C - GeeksforGeeks	03 Dec, 2019 Stringizing operator (#) This operator causes the corresponding actual argument to be enclosed in double quotation marks. The # operator, which is generally called the stringize operator, turns the argument it precedes into a quoted string. For more on pre-processor directives – refer thisExamples : The fo...	[ { "code": null, "e": 24021, "s": 23993, "text": "\n03 Dec, 2019" }, { "code": null, "e": 24046, "s": 24021, "text": "Stringizing operator (#)" }, { "code": null, "e": 24322, "s": 24046, "text": "This operator causes the corresponding actual argument to be encl...
End-to-End Time Series Analysis and Forecasting: a Trio of SARIMAX, LSTM and Prophet (Part 1) \| by Bruce Nguyen \| Towards Data Science	In collaboration with Alex Le. Part 2: End-to-End Time Series Analysis and Forecasting: a Trio of SARIMAX, LSTM and Prophet (Part 2) \| by Son Le \| Dec, 2021 \| Medium Time series, or series of data points indexed in time order, is a ubiquitous type of data. Economists analyze economies by looking at how they performed i...	[ { "code": null, "e": 202, "s": 171, "text": "In collaboration with Alex Le." }, { "code": null, "e": 337, "s": 202, "text": "Part 2: End-to-End Time Series Analysis and Forecasting: a Trio of SARIMAX, LSTM and Prophet (Part 2) \| by Son Le \| Dec, 2021 \| Medium" }, { "code"...
How to loop through a menu list on a webpage using Selenium?	We can loop through a menu list on a webpage using Selenium webdriver. In a webpage, a list is represented by an ul tag and it consists of elements with li tag. Thus the li tag can be said as the child of ul. First, we have to identify the element with ul tag with any locator, then traverse through its li sub-elements ...	[ { "code": null, "e": 1133, "s": 1062, "text": "We can loop through a menu list on a webpage using Selenium webdriver." }, { "code": null, "e": 1271, "s": 1133, "text": "In a webpage, a list is represented by an ul tag and it consists of elements with li tag. Thus the li tag can b...
How to create default function parameter in PHP? - GeeksforGeeks	15 May, 2020 The default parameter concept comes from C++ style default argument values, same as in PHP you can provide default parameters so that when a parameter is not passed to the function. Then it is still available within the function with a pre-defined value. This function also can be called optional parameter....	[ { "code": null, "e": 32651, "s": 32623, "text": "\n15 May, 2020" }, { "code": null, "e": 32959, "s": 32651, "text": "The default parameter concept comes from C++ style default argument values, same as in PHP you can provide default parameters so that when a parameter is not passe...
Understanding clientHeight, offsetHeight & scrollHeight Properties in CSS	clientHeight gives the measure of the height of an element including the padding. Note that border, margin, and scrollbar height (if renedered) are not included in this. offsetHeight gives the measure of the height of an element including the vertical padding, top and bottom borders. Margin is not including here. scrol...	[ { "code": null, "e": 1232, "s": 1062, "text": "clientHeight gives the measure of the height of an element including the padding. Note that border, margin, and scrollbar height (if renedered) are not included in this." }, { "code": null, "e": 1377, "s": 1232, "text": "offsetHeight...
ReactJS Reactstrap List Component - GeeksforGeeks	30 Jul, 2021 Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. The List component allows the user to display a list. We can use the following approach in ReactJS to use the ReactJS Reactstrap List Component. ...	[ { "code": null, "e": 26667, "s": 26639, "text": "\n30 Jul, 2021" }, { "code": null, "e": 26974, "s": 26667, "text": "Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. T...
How to get the first and last record of the table in MySQL?	To get the first and last record, use UNION. LIMIT is also used to get the number of records you want. Let us first create a table − mysql> create table DemoTable694 ( EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, EmployeeName varchar(100), EmployeeSalary int ); Query OK, 0 rows affected (0.58 sec) Inser...	[ { "code": null, "e": 1165, "s": 1062, "text": "To get the first and last record, use UNION. LIMIT is also used to get the number of records you want." }, { "code": null, "e": 1195, "s": 1165, "text": "Let us first create a table −" }, { "code": null, "e": 1377, "s...
Ordinal Logistic Regression. An overview and implementation in R \| by Akanksha Rawat \| Towards Data Science	Can you guess what is the common link in the variables mentioned below: Job satisfaction level — Dissatisfied, Satisfied, Highly Satisfied Performance of an individual — Poor, Fair, Excellent Impact of a regulation on bank’s performance — Positive, Neutral, Negative The variables are not only categorical but they are a...	[ { "code": null, "e": 244, "s": 172, "text": "Can you guess what is the common link in the variables mentioned below:" }, { "code": null, "e": 311, "s": 244, "text": "Job satisfaction level — Dissatisfied, Satisfied, Highly Satisfied" }, { "code": null, "e": 364, "...
Compiler Design - Phases of Compiler	The compilation process is a sequence of various phases. Each phase takes input from its previous stage, has its own representation of source program, and feeds its output to the next phase of the compiler. Let us understand the phases of a compiler. The first phase of scanner works as a text scanner. This phase scans ...	[ { "code": null, "e": 2444, "s": 2193, "text": "The compilation process is a sequence of various phases. Each phase takes input from its previous stage, has its own representation of source program, and feeds its output to the next phase of the compiler. Let us understand the phases of a compiler." ...
How to assign specific colors to specific cells in a Matplotlib table?	To assign specific colors to specific cells in a Matplotlib table, we can take the following steps − Set the figure size and adjust the padding between and around the subplots. Make a tuple for columns attribute. Make a list of lists, i.e., list of records. Make a list of lists, i.e., color of each cell. Create a figur...	[ { "code": null, "e": 1163, "s": 1062, "text": "To assign specific colors to specific cells in a Matplotlib table, we can take the following steps −" }, { "code": null, "e": 1239, "s": 1163, "text": "Set the figure size and adjust the padding between and around the subplots." },...
Precedence of postfix ++ and prefix ++ in C/C++ - GeeksforGeeks	15 Jul, 2021 In C/C++, precedence of Prefix ++ (or Prefix –) has same priority than dereference () operator, and precedence of Postfix ++ (or Postfix –) is higher than both Prefix ++ and . If p is a pointer then p++ is equivalent to (p++) and ++p is equivalent to ++(p) (both Prefix ++ and * are right associative)...	[ { "code": null, "e": 24464, "s": 24436, "text": "\n15 Jul, 2021" }, { "code": null, "e": 24833, "s": 24464, "text": "In C/C++, precedence of Prefix ++ (or Prefix –) has same priority than dereference (*) operator, and precedence of Postfix ++ (or Postfix –) is higher than both Pr...
C++ Program to Represent Graph Using Adjacency Matrix	The adjacency matrix of a graph is a square matrix of size V x V. The V is the number of vertices of the graph G. In this matrix in each side V vertices are marked. If the graph has some edges from i to j vertices, then in the adjacency matrix at ith row and jth column it will be 1 (or some non-zero value for weighted ...	[ { "code": null, "e": 1424, "s": 1062, "text": "The adjacency matrix of a graph is a square matrix of size V x V. The V is the number of vertices of the graph G. In this matrix in each side V vertices are marked. If the graph has some edges from i to j vertices, then in the adjacency matrix at ith ro...
Getting MongoDB results from the previous month	At first, get the current month and subtract by 1 to fetch previous month records. Let us first create a collection with documents − > db.findOneMonthAgoData.insertOne({"CustomerName":"Chris","PurchaseDate":new ISODate("2019-12-26")}); { "acknowledged" : true, "insertedId" : ObjectId("5e04e16c150ee0e76c06a04f") }...	[ { "code": null, "e": 1195, "s": 1062, "text": "At first, get the current month and subtract by 1 to fetch previous month records. Let us first create a collection with documents −" }, { "code": null, "e": 1757, "s": 1195, "text": "> db.findOneMonthAgoData.insertOne({\"CustomerNam...
PHP \| ctype_upper() Function	04 Jun, 2018 The ctype_upper() function in PHP used to check each and every character of a given string is in uppercase or not. If the string in upper case then it returns TRUE otherwise returns False. Syntax: ctype_upper (string text) Parameter Used:- $text : The tested string. Return Value:Function returns True if e...	[ { "code": null, "e": 28, "s": 0, "text": "\n04 Jun, 2018" }, { "code": null, "e": 217, "s": 28, "text": "The ctype_upper() function in PHP used to check each and every character of a given string is in uppercase or not. If the string in upper case then it returns TRUE otherwise r...