cumplyr-package: Extends ddply to allow calculation of cumulative quantities.

In cumplyr: Extends ddply to allow calculation of cumulative quantities.

Description

Extends ddply to allow calculation of cumulative quantities.

Details

Package:	cumplyr
Type:	Package
Version:	0.1-1
Date:	2012-05-02
License:	MIT

Author(s)

John Myles White

Maintainer: John Myles White <[e-mail]>

Examples

library('cumplyr')

data(rt.data)

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

print(results)

Example output

   Subject Block Trial func(local.data)
1        1     1     1        0.5000000
2        1     1     2        0.7500000
3        1     1     3        1.0000000
4        1     2     1        0.5000000
5        1     2     2        0.5000000
6        1     2     3        0.5833333
7        2     1     1        1.0000000
8        2     1     2        1.5000000
9        2     1     3        2.0000000
10       2     2     1        0.5000000
11       2     2     2        0.7500000
12       2     2     3        1.1666667

cumplyr documentation built on May 2, 2019, 2:13 p.m.