[R] a replace for subset

Bert Gunter bgunter.4567 at gmail.com
Fri Apr 15 00:46:39 CEST 2016

A mess!
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Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Thu, Apr 14, 2016 at 1:14 PM, ch.elahe via R-help
<r-help at r-project.org> wrote:
> Hi,I have a data set (mydata), which a part of this is like the following:  'data.frame':   36190 obs. of 16 variables:$ RE                    : int  38 41 11 67 30 18 38 41 41 30 ...$ LU                     : int  4200 3330 530 4500 3000 1790 4700 3400 3640 4000 ...$ COUNTRY        : Factor w/ 4 levels "DE","FR","JP", "FR"…$Light                  : Factor w/2 levels   "ON","OFF","ON", ….$OR                     : Factor w/2 levels   "S","T","S",….$PAT                  : Factor w/3 levels   "low", "high", "middle",….  Now I want to plot RE vs LU with ggplot2 for all the possible cases, I know how to do subsetting for the data but I want to know is there any shorter way to do that? For example I want to have a plot for RE vs LU for (COUNTRY= FR, Light=off, OR=S, PAT=low) and one for (COUNTRY= FR, Light=on, OR=S, PAT=high) and …., as you see doing subset is time consuming, is there any other way?Thank you for any help.Elahe
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