R function for transforming comma-separated values in a cell into multiple rows with same row name?...

Count the number of timestamps in a given vector that fall within an interval in R...

dplyr mutate compare with another data frame...

R Make changes across multiple columns based off value in another column...

Concisely assign vector output of a function to multiple variables in dplyr...

How do I mutate across to multiple columns together that have similar names in R?...

Unknown levels in `f`:() but the columns are already factors...

How to subtract the value of some rows from other rows in R according to categorical variables...

Extract first Non NA value over multiple columns...

Specify levels when `mutate`-ing dataframe variables to factors...

How to maintain date format when after applying function...

How to create new dataframe column with a character that comes from three other columns but only if ...

Replacing values in one table from a corresponding key in another table by specific column...

Select column based on indicator in another column...

Mutate column for n% of the total dataframe, in descending order of other column r...

Rowsums on two vectors of paired columns but conditional on specific values...

dplyr mutate and purrr map: use data masking to select columns for map...

Row bind multiple columns into two columns averaging unique elements in order...

In R, how do I make a long dataset that contains all the categories that a row applies to?...

In R, how can I get the sum for all combinations of two variables?...

Add a column to dataframes in a list based on the existence of other columns in R...

Row bind multiple columns into two columns containing unique elements in order...

Create binary variable based on length of group in another column...

How to use query function of hashmap in mutate of dplyr pipe in R?...

How do I create many new variables in R, each of them based on multiple other variables?...

How to calculate days between positive and negative results and creating new columns for each with R...

Using Janitor based on other columns in the same row to output conditional results...

How to use custom function() and if_else with grep to recode values in R...

dplyr: mutate not applying function to grouped data...

How to preserve column names after applying scale()?...