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

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Catalin-Constantin ROIBU
Lecturer PhD, Forestry engineer
Forestry Faculty of Suceava
Str. Universitatii no. 13, Suceava, 720229, Romania
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