AvatarErik Marsjaflipped into Data Science and Machine LearningEquality Levene's & Bartlett's Test of Equality (Homogeneity) of Variance in Python marsja.se - Erik Marsja In this Python tutorial, you will learn how to 1) perform Bartlett’s Test, and 2) Levene’s Test. Both are tests that are testing the assumption of …

AvatarErik Marsjaflipped into Data Science and Machine LearningTutorials R: Add a Column to Dataframe Based on Other Columns with dplyr marsja.se - Erik Marsja In this R tutorial, you are going to learn how to add a column to a dataframe based on values in other columns. Specifically, you will learn to create …

AvatarErik Marsjaflipped into Data Science and Machine LearningTutorials How to use %in% in R: 7 Example Uses of the Operator marsja.se - Erik Marsja In this tutorial, you will learn by examples how to use the %in% in R. Specifically, you will learn 7 different uses of this great operator. Table of …

AvatarErik Marsjaflipped into Data Science and Machine LearningThe Matrix How to Transpose a Dataframe or Matrix in R with the t() Function marsja.se - Erik Marsja In this brief tutorial, you will learn how to transpose a dataframe or a matrix in R statistical programming environment. Transposing rows and …

AvatarErik Marsjaflipped into Data Science and Machine LearningPython Programming Pandas Count Occurrences in Column - i.e. Unique Values marsja.se - Erik Marsja In this Pandas tutorial, you are going to learn how to count occurrences in a column. There are occasions in data science when you need to know how …

AvatarErik Marsjaflipped into Data Science and Machine LearningLearning How to Generate a Sequence of Numbers in R with :, seq() and rep() marsja.se - Erik Marsja In this R tutorial, you will learn how to generate sequences of numbers in R. There are many reasons why we would want to generate sequences of …