How to Rename Factor Levels in R using levels() and dplyr
In this R tutorial, you will learn how to rename factor levels in R using 1) levels and 2)
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How to Remove Duplicates in R – Rows and Columns (dplyr)
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.
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Levene’s & Bartlett’s Test of Equality (Homogeneity) of Variance in Python
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
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R: Add a Column to Dataframe Based on Other Columns with dplyr
In this R tutorial, you will learn how to add a column to a dataframe based on other columns.
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How to use %in% in R: 8 Example Uses of the Operator
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
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How to Transpose a Dataframe or Matrix in R with the t() Function
In this hands on tutorial, you will learn how to transpose a matrix and a dataframe in R statistical programming environment.
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Pandas Count Occurrences in Column – i.e. Unique Values
In this Pandas tutorial, you will learn how to count occurrences in column using the value_counts() method.
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How to Generate a Sequence of Numbers in R with :, seq() and rep()
In this post, you will learn how to generate sequences of numbers in R using the : operator, the seq() and rep() functions.
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How to Convert a Float Array to an Integer Array in Python with NumPy
In this short NumPy tutorial, you will learn how to convert a float array to an integer array in Python.
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How to Perform Mann-Whitney U Test in Python with Scipy and Pingouin
In this post, you will learn how to carry out the non-parametric test known as Mann-Whitney U test with Python. Specifically, you will learn how to carry out this test with SciPy and Pingouin.
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