Replicate expression and return results in a list.

Source: R/rlply.r

Evalulate expression n times then combine results into a list

rlply(.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

Value

list of results

Details

This function runs an expression multiple times, and combines the result into a list. If there are no results, then this function will return a list of length 0 (list()). This function is equivalent to replicate, but will always return results as a list.

References

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/.

Examples

mods <- rlply(100, lm(y ~ x, data=data.frame(x=rnorm(100), y=rnorm(100))))
hist(laply(mods, function(x) summary(x)$r.squared))