[R] arbitrary subset of dataframe

[ONKELINX, Thierry]

You've misplaced the comma.

mysample <- df[, sample(ncol(df), 50, replace=FALSE)]

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
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~ Sir Ronald Aylmer Fisher

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-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org] Namens catalin roibu
Verzonden: maandag 26 augustus 2013 11:41
Aan: r-help op r-project.org
Onderwerp: [R] arbitrary subset of dataframe

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
office phone     +4 0230 52 29 78, ext. 531
mobile phone   +4 0745 53 18 01
                       +4 0766 71 76 58
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