filter_by_funs: Filter a data frame accoring to descriptive functions

In datalorax/sundry: A sundry of convenience functions

Description

This function allows you to subset a data frame by any set of descriptive statistics. For example, you could extract rows that are eqaul to specific quantiles, or the min and the max. This is a dplyr-like function, and works well with functions such as group_by.

Usage

filter_by_funs(data, variable, .funs)

Arguments

data	The data frame that includes the variables to compute descriptive statistics on.
variable	The variable to filter on.
.funs	The functions to use in filtering.

Value

A tidy data frame with the requested descriptive statistics for the requested variables

Examples

library(dplyr)
storms %>%
 filter_by_funs(wind, funs(min,
                           quantile(., .25, na.rm = TRUE),
                           quantile(., .50, na.rm = TRUE),
                           quantile(., .75, na.rm = TRUE),
                           max))
storms %>%
  group_by(year) %>%
  filter_by_funs(wind, funs(min,max)) %>%
  arrange(year)

datalorax/sundry documentation built on April 11, 2021, 1:50 p.m.