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Calculating Standard Deviation of Column(s) by Group in R

How to Calculate Standard Deviation by Group in R

Calculating Standard Deviation (SD) by group in a Data Frame essentially means finding the SD …

Summarise Multiple Columns By Group in R

How to Summarise Multiple Columns using dplyr in R

When we say summarise multiple columns, it means aggregate the input data by applying summary …

Calculating Cumsum by Group in R

How to Calculate Cumulative Sum (cumsum) by Group in R

Cumulative sum by group means for each group, we calculate the running sum of values …

R type.convert() Function

R type.convert() Function: Complete Guide

The type.convert() is a built-in R function that intelligently converts a vector, factor, or data …

Calculating minimum value by group in R Data Frame

How to Find the Minimum Value By Group in R

Finding the minimum value by group means getting the smallest value within each group in …

Calculating max value by single or multiple groups in R Data Frame

How to Find the Maximum Value By Group in R

If you want to find the maximum value within a specific subset of your data, …