[R] Is there a summary on different version of 'apply' functions? What is the meaning of the prefixes?

hadley wickham h.wickham at gmail.com
Wed Aug 12 03:44:52 CEST 2009

You might also want to have a look at the plyr package,
http://had.co.nz/plyr.  This package is an attempt to
standardise and make consistent the various common uses of apply and friends.


On Tue, Aug 11, 2009 at 3:09 PM, Peng Yu<pengyu.ut at gmail.com> wrote:
> Hi,
> There are quiet a few different 'apply' functions, such as lapply,
> sapply and many more. I'm very familiar with the 'Apply' function in
> Mathematica. Can somebody point me a summary of all the 'apply'
> functions in R. Also, I'm curious that what 'l' and 's' (and other
> prefixes) stand for in 'lapply' and 'sapply'
> Regards,
> Peng
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