In this post, you will learn what you need to add new columns to your dataframe in R. We will work both with base R and some of the great Tidyverse packages.
How to Add a Column to a Dataframe in R with tibble & dplyr Read More »
In this R tutorial, you will learn how to rename factor levels in R using 1) levels and 2)
How to Rename Factor Levels in R using levels() and dplyr Read More »
In this R tutorial, you will learn how to remove duplicate rows and columns from a data frame. We will use the duplicated() and unique() functions from base R. Furthermore, we will use the distinct() function from the dplyr package.
How to Remove Duplicates in R – Rows and Columns (dplyr) Read More »
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 equal variances. Equality of variances (also known as homogeneity of variance, and homoscedasticity) in population samples is assumed in commonly used comparison of means tests, such as Student’s t-test
Levene’s & Bartlett’s Test of Equality (Homogeneity) of Variance in Python Read More »
In this R tutorial, you will learn how to add a column to a dataframe based on other columns.
R: Add a Column to Dataframe Based on Other Columns with dplyr Read More »
Are you an R user and want to learn how to use %in% in R in your data analysis and manipulation tasks? This tutorial is for you and will cover the ins and outs of R’s %in% operator. We will start with the basics, including what %in% means in R and how it differs from
How to use %in% in R: 8 Example Uses of the Operator Read More »
In this hands on tutorial, you will learn how to transpose a matrix and a dataframe in R statistical programming environment.
How to Transpose a Dataframe or Matrix in R with the t() Function Read More »
In this Pandas tutorial, you will learn how to count occurrences in column using the value_counts() method.
Pandas Count Occurrences in Column – i.e. Unique Values Read More »
In this post, you will learn how to generate sequences of numbers in R using the : operator, the seq() and rep() functions.
How to Generate a Sequence of Numbers in R with :, seq() and rep() Read More »
In this short NumPy tutorial, you will learn how to convert a float array to an integer array in Python.
How to Convert a Float Array to an Integer Array in Python with NumPy Read More »