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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