[R] How to get the n (number of observations) per conditional group

Hello all, I have a huge data set that I'm cleaning up a bit. I am extracted the means per condition, but also need to get the n. Strangely enough I am unable to find a function that could actually pull this off. I am unable to use replications or count the rows using nrow. What I am trying to

Re: [R] How to get the n (number of observations) per conditional group

We will only be able to help if you provide a reproducible example! I'm sure this is a simple one-liner, but it's hard to tell from your example what it should be. The functions table, length, tapply, and/or nrow may play a part though. -Original Message- From:

Re: [R] How to get the n (number of observations) per conditional group

?length --- On Thu, 8/13/09, Dax rienk.doet...@gmail.com wrote: From: Dax rienk.doet...@gmail.com Subject: [R] How to get the n (number of observations) per conditional group To: r-help@r-project.org Received: Thursday, August 13, 2009, 10:11 AM Hello all, I have a huge data set that I'm

Re: [R] How to get the n (number of observations) per conditional group

I found a work-around by just simply getting the sum of the conditional values and dividing this by the mean. It's not elegant but it works On Aug 13, 3:11 pm, Dax rienk.doet...@gmail.com wrote: Hello all, I have a huge data set that I'm cleaning up a bit. I am extracted the means per