plyr is an R package with tools to solve a variety of problems using the split-apply-combine strategy
How can I use ddply function for linear model? x1 <- c(1:10, 1:10) x2 <- c(1:5, 1:5, 1:5, 1:5) x3 <- …
r dataframe plyrI have a number of operations on data frames which I would like to speed up using mclapply() or other …
r parallel-processing multicore dataframe plyr