group_summarize: group_by and summarize as an atomic action.

Description Usage Arguments Value Examples

View source: R/group_summarize.R

Description

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.

Usage

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group_summarize(
  d,
  groupingVars,
  ...,
  arrangeTerms = NULL,
  env = parent.frame()
)

group_summarise(
  d,
  groupingVars,
  ...,
  arrangeTerms = NULL,
  env = parent.frame()
)

Arguments

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.

Value

d summarized by groups

Examples

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group_summarize(datasets::mtcars,
                    c("cyl", "gear"),
                    group_mean_mpg = mean(mpg),
                    group_mean_disp = mean(disp)) %.>%
  head(.)

seplyr documentation built on June 12, 2021, 5:07 p.m.