cumplyr (version 0.1-1)

cumddply: Cumulative ddply

Description

Cumulative ddply

Usage

cumddply(data, equality.variables, inequality.variables, func)

Arguments

data

Data to process

equality.variables

Character vector variables used to split data on equality

inequality.variables

Character vector variables used to split data on inequality

func

Function to call on each split of the data

Value

Data frame with cumulative results combined across splits

Examples

library('cumplyr')

data(rt.data)

results <- cumddply(rt.data,
                    c('Subject', 'Block'),
                    c('Trial'),
                    function (df) {with(df, mean(RT))})

print(results)