Hi First of all do not mix data frame and matrix, they have quite different properties.
By transposing data frame you got character matrix and you cannot do barplot with characters. So you shall transpose only column PT_SATZ and add names from MONTHS but why not to use your data frame directly? dat<-data.frame(x=letters[1:5], y=1:5) barplot(dat[,2], names.arg=dat[,1]) You could arrive to this answer quicker if you bother to look into documentation to barplot so as did I. Regards Petr > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Mat > Sent: Monday, October 07, 2013 9:58 AM > To: r-help@r-project.org > Subject: [R] kill colnames Matrix > > Hello together, > > i have a little problem, maybe you can help me. > I have a matrix like this one: > > [,1] [,2] [,3] [,4] > [,5] > MONTH "2012-10" "2012-11" "2012-12" "2013-01" > "2013-02" > PT_SATZ " 0.00000" " 500.53621" " 65.71684" "1080.58285" > "1013.72028" > > For a bar plot i need this matrix in the following formatting: > > "2012-10" "2012-11" "2012-12" "2013-01" "2013-02" > 0.00000" " 500.53621" " 65.71684" "1080.58285" "1013.72028" > > the data comes from a data.frame like this one: > > MONTH PT_SATZ > 1 2012-10 0.00000 > 2 2012-11 500.53621 > 3 2012-12 65.71684 > 4 2013-01 1080.58285 > 5 2013-02 1013.72028 > 6 2013-03 939.63030 > 7 2013-04 977.17073 > 8 2013-05 0.00000 > 9 2013-06 0.00000 > 10 2013-07 1047.56938 > 11 2013-08 225.44031 > 12 2013-09 667.91489 > 13 2013-10 0.00000 > > i converted this data.frame with plotbase<-t(plotbase). > > Maybe you can help me. > > Thanks Mat > > > > -- > View this message in context: http://r.789695.n4.nabble.com/kill- > colnames-Matrix-tp4677726.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
