gvelasq / mutagen Goto Github PK
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Home Page: https://gvelasq.github.io/mutagen
License: Other
Extensions to mutate
Home Page: https://gvelasq.github.io/mutagen
License: Other
Fairly regularly it's useful to create a percent within a group.
To do this the pure tidyverse way it's a bit repetitive especially if you have multiple layers
mtcars %>%
count(gear, cyl) %>%
group_by(gear) %>%
mutate(pct = n/sum(n))%>%
ungroup()
I propose that a helper function be added to this to gen a pct within group.
I'm sort of picturing something like this
pct_by <- function(
data,
n = n,
...
){
data %>%
group_by(...) %>%
mutate(pct = {{n}}/(sum({{n}}))) %>%
ungroup()
}
but what ever fits into your api is good.
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