Subsetting Data
Try this: sum(dat$Number >= 10)
On Thu, Apr 28, 2011 at 3:13 PM, Abraham Mathew <abmathewks at gmail.com> wrote:
I'm using the subset() function in R. dat <- data.frame(one=c(6,7,8,9,10), Number=c(5,15,13,1,13)) subset(dat, Number >= 10) However, I want to find the number of all rows who meet the Number>=10 condition. I've done this in the past with something like colSums or rowSums or another similar function. But I don't remember how to get the number of elements which meet that condition. function(subset(dat, Number >= 10)) ? #function is what i'm asking about In the above example, I'd run get 3 because there are 3 Number values greater than 10.
sessionInfo()
R version 2.13.0 (2011-04-13) Platform: i686-pc-linux-gnu (32-bit) Help, Abraham ? ? ? ?[[alternative HTML version deleted]]
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