a_ply {plyr} | R Documentation |
For each slice of an array, apply function and discard results
a_ply(.data, .margins, .fun = NULL, ..., .expand = TRUE, .progress = "none", .inform = FALSE, .print = FALSE, .parallel = FALSE, .paropts = NULL)
.fun |
function to apply to each piece |
... |
other arguments passed on to |
.progress |
name of the progress bar to use, see
|
.parallel |
if |
.paropts |
a list of additional options passed into
the |
.inform |
produce informative error messages? This is turned off by by default because it substantially slows processing speed, but is very useful for debugging |
.data |
matrix, array or data frame to be processed |
.margins |
a vector giving the subscripts to split
up |
.expand |
if |
.print |
automatically print each result? (default:
|
Nothing
This function splits matrices, arrays and data frames by dimensions
All output is discarded. This is useful for functions that you are calling purely for their side effects like displaying plots or saving output.
Hadley Wickham (2011). The Split-Apply-Combine Strategy for Data Analysis. Journal of Statistical Software, 40(1), 1-29. http://www.jstatsoft.org/v40/i01/.
Other array input: aaply
,
adply
, alply
Other no output: d_ply
,
l_ply
, m_ply