rdply {plyr}R Documentation

Replicate expression and return results in a data frame

Description

Evalulate expression n times then combine results into a data frame

Usage

rdply(.n, .expr, .progress = "none")

Arguments

.n number of times to evaluate the expression
.expr expression to evaluate
.progress name of the progress bar to use, see create_progress_bar

Details

This function runs an expression multiple times, and combines the result into a data frame. If there are no results, then this function returns a data frame with zero rows and columns (data.frame()). This function is equivalent to replicate, but will always return results as a data frame.

Value

a data frame

Author(s)

Hadley Wickham <h.wickham@gmail.com>

Examples

rdply(20, mean(runif(100)))
rdply(20, each(mean, var)(runif(100)))
rdply(20, data.frame(x = runif(2)))

[Package plyr version 0.1.5 Index]