View source: R/group_summarize.R
group_summarize | R Documentation |
Group a data frame by the groupingVars and compute user summaries on this data frame (user summaries specified in ...). Enforces the good dplyr pipeline design principle of keeping group_by and summarize close together. Author: John Mount, Win-Vector LLC.
group_summarize( d, groupingVars, ..., arrangeTerms = NULL, env = parent.frame() ) group_summarise( d, groupingVars, ..., arrangeTerms = NULL, env = parent.frame() )
d |
data.frame |
groupingVars |
character vector of column names to group by. |
... |
list of dplyr::mutate() expressions. |
arrangeTerms |
character optional vector of quoted column expressions to arrange by. |
env |
environment to work in. |
d summarized by groups
group_summarize(datasets::mtcars, c("cyl", "gear"), group_mean_mpg = mean(mpg), group_mean_disp = mean(disp)) %.>% head(.)
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