applyOnSecondLevel: go over levels and apply certain function

In michelk/logbuch.R: Summarize workday log-files

Usage

    applyOnSecondLevel(x, valueCol, levelCols, FUN)

Arguments

x	data.frame
valueCol	column with values to apply function to (length = 2)
levelCols	column names to go over levels
FUN	function to apply to last levels

Value

data.frame with applied function

Examples

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as

michelk/logbuch.R documentation built on May 22, 2019, 9:55 p.m.