Cumulative sum by group means for each group, we calculate the running sum of values in the specific column that…
The type.convert() is a built-in R function that intelligently converts a vector, factor, or data frame column into the most…
Finding the minimum value by group means getting the smallest value within each group in our data frame. For example,…
If you want to find the maximum value within a specific subset of your data, you must find the maximum…
The dplyr summarise()(or summarize()) function aggregates data into a single summary value for each group or the entire dataset if ungrouped.…
Counting conditionally in the data frame means counting the number of rows that meet specific conditions defined by the user.…
What do you mean by counting unique values by group? Well, it means you divide the dataset into subsets based…
To calculate the percentage by the group in R, you need to combine various dplyr functions such as group_by(), summarise(), mutate(),…
In R, you can calculate the sum by group using the base aggregate(), dplyr's group_by() with summarise(), or the data…
Here are three ways to calculate the mean by group for single or multiple columns in the R data frame:…