[R] column selection

[ONKELINX, Thierry]

You have two options.

Q[, 117:ncol(Q)]

Or using the negation, thus not selecting the first 116 cols.

Q[, -1:-116]



ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx at inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey


-----Oorspronkelijk bericht-----
Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Namens eliza botto
Verzonden: woensdag 2 januari 2013 15:00
Aan: r-help at r-project.org
Onderwerp: [R] column selection


Dear R users,
sorry for a very basic question. i wanted to ask that if your column are too much in number and you want to select the remaining columns, starting from column number 117. one way is to use usual command
>q[ ,(117:2300)].
is there a way by which i can select the remaining columns starting from column number 117 without using the usual command or without giving the column number of the last column?
more precisely, cant i use something like
>q[ ,(117:remaining columns)]
hope my question was clear.
elisa
        [[alternative HTML version deleted]]

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