Dear All, I have a data frame with State and 12 Months as column. I want to convert all the 12 month column from factor to numeric. any help will be greatly appreciated.> str(data)'data.frame': 33 obs. of 9 variables: $ State : Factor w/ 33 levels "Andaman and Nicobar Islands",..: 1 2 3 4 5 6 7 8 9 10 ... $ April : Factor w/ 21 levels "0","1","10","116",..: 2 16 1 1 9 20 1 1 2 21 ... $ August : Factor w/ 18 levels "0","1","10","125",..: 1 14 1 1 9 3 1 1 2 5 ... $ February : Factor w/ 19 levels "0","1","103",..: 1 15 1 1 2 6 2 1 2 14 ... $ January : Factor w/ 19 levels "0","1","10","114",..: 1 15 1 1 11 12 2 1 1 4 ... $ July : Factor w/ 16 levels "0","1","122",..: 1 13 1 1 1 12 8 2 1 4 ... $ June : Factor w/ 18 levels "0","1","10","119",..: 1 14 1 1 9 10 9 2 1 4 ... $ May : Factor w/ 20 levels "0","1","10","111",..: 2 19 1 1 10 15 1 1 1 5 ... $ September: Factor w/ 19 levels "0","1","11","122",..: 1 18 1 1 14 3 2 1 2 9 ... Thanks & Rg Mohan L [[alternative HTML version deleted]]
Hi, What about: as.numeric(as.character(data$State)) ? Ivan Le 5/26/2010 09:32, Mohan L a ?crit :> Dear All, > > I have a data frame with State and 12 Months as column. I want to convert > all the 12 month column from factor to numeric. > any help will be greatly appreciated. > >> str(data) >> > 'data.frame': 33 obs. of 9 variables: > $ State : Factor w/ 33 levels "Andaman and Nicobar Islands",..: 1 2 3 4 > 5 6 7 8 9 10 ... > $ April : Factor w/ 21 levels "0","1","10","116",..: 2 16 1 1 9 20 1 1 2 > 21 ... > $ August : Factor w/ 18 levels "0","1","10","125",..: 1 14 1 1 9 3 1 1 2 > 5 ... > $ February : Factor w/ 19 levels "0","1","103",..: 1 15 1 1 2 6 2 1 2 14 > ... > $ January : Factor w/ 19 levels "0","1","10","114",..: 1 15 1 1 11 12 2 1 > 1 4 ... > $ July : Factor w/ 16 levels "0","1","122",..: 1 13 1 1 1 12 8 2 1 4 > ... > $ June : Factor w/ 18 levels "0","1","10","119",..: 1 14 1 1 9 10 9 2 1 > 4 ... > $ May : Factor w/ 20 levels "0","1","10","111",..: 2 19 1 1 10 15 1 1 > 1 5 ... > $ September: Factor w/ 19 levels "0","1","11","122",..: 1 18 1 1 14 3 2 1 2 > 9 ... > > Thanks& Rg > Mohan L > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > >-- Ivan CALANDRA PhD Student University of Hamburg Biozentrum Grindel und Zoologisches Museum Abt. S?ugetiere Martin-Luther-King-Platz 3 D-20146 Hamburg, GERMANY +49(0)40 42838 6231 ivan.calandra at uni-hamburg.de ********** for771.uni-bonn.de webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php