R help - Apr 2016 - a replace for subset

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",?.$PAT ? ? ? ? ? ?
? ? ?: Factor w/3 levels ? "low", "high",
"middle",?.??Now I want to plot RE vs LU with ggplot2 for all the
possible cases, I know how to do subsetting for the data but I want to know is
there any shorter way to do that? For example I want to have a plot for RE vs LU
for (COUNTRY= FR, Light=off, OR=S, PAT=low) and one for (COUNTRY= FR, Light=on,
OR=S, PAT=high) and ?., as you see doing subset is time consuming, is there any
other way?Thank you for any help.Elahe
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On Thu, Apr 14, 2016 at 1:14 PM, ch.elahe via R-help
<r-help at r-project.org> wrote:
> Hi,I have a data set (mydata), which a part of this is like the following: 
'data.frame':   36190 obs. of 16 variables:$ 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
>         [[alternative HTML version deleted]]
>
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