Dear all!
I want to arbitrary subset a data frame by variables.
I try this code, but the subset work only for rows, but I want to subset by
variables.
# sample without replacement
mysample <- df[sample(1:ncol(df), 50,
replace=FALSE),]
Please help me to solve this problem!
Thank you!
Best regards!
CR
--
---
Catalin-Constantin ROIBU
Lecturer PhD, Forestry engineer
Forestry Faculty of Suceava
Str. Universitatii no. 13, Suceava, 720229, Romania
office phone +4 0230 52 29 78, ext. 531
mobile phone +4 0745 53 18 01
+4 0766 71 76 58
FAX: +4 0230 52 16 64
silvic.usv.ro
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