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2 results for “from:alex_123”

help - extract data using column names
alex_123 · Nov 1, 2012 · r-help

Thanks a lot!!! -- View this message in context: http://r.789695.n4.nabble.com/help-extract-data-using-column-names-tp4647869p4648125.html Sent from the R help mailing list archive at Nabble.com.

help - extract data using column names
alex_123 · Oct 30, 2012 · r-help

hello , I am new user in R . I have datafile (class = data.frame) which has 825 columns with unique column name i want extract 200 selected column from datafile how can I do this? my datafile look like.. Mi RBN...

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