Top "Mutate" questions

Can dplyr package be used for conditional mutating?

Can the mutate be used when the mutation is conditional (depending on the values of certain column values)? This example …

r if-statement dplyr case-when mutate

dplyr mutate with conditional values

In a large dataframe ("myfile") with four columns I have to add a fifth column with values conditionally based on …

r dplyr mutate

Calculate group mean (or other summary stats) and assign to original data

I want to calculate mean (or any other summary statistics of length one, e.g. min, max, length, sum) of …

r mean summary mutate r-faq

R: row-wise dplyr::mutate using function that takes a data frame row and returns an integer

I am trying to use pipe mutate statement using a custom function. I looked a this somewhat similar SO post …

r dplyr row mutate

mutate by group in R

I have a data with following columns: Date CID FID rank 31/01/17 abc0001 rx180x01 0 31/01/17 abc0001 rx180x02 0 31/01/17 abc0001 rx180x03 2 28/02/17 …

r dplyr window-functions mutate

How to use map from purrr with dplyr::mutate to create multiple new columns based on column pairs

I have to following issue using R. In short I want to create multiple new columns in a data frame …

r dplyr purrr mutate

How to use custom functions in mutate (dplyr)?

I'm rewriting all my code using dplyr, and need help with mutate / mutate_at function. All I need is to …

r dplyr mutate

Applying group_by and summarise(sum) but keep columns with non-relevant conflicting data?

My question is very similar to Applying group_by and summarise on data while keeping all the columns' info but …

r group-by tidyverse mutate summarize

Using dplyr to filter rows which contain partial string of column

Assuming I have a data frame like term cnt apple 10 apples 5 a apple on 3 blue pears 3 pears 1 How could I …

r filter dplyr mutate summarize

Recode multiple columns using dplyr

I had a dataframe where I recoded several columns so that 999 was set to NA dfB <-dfA %>% mutate(…

r dplyr recode mutate