May I suggest that "DYDD" -- Do Your Due Dilgence -- might be an appropriate reply to this sort of query. A purposefully less crude and more polite version of "RTFM."
-- Bert On Tue, Nov 30, 2010 at 8:51 AM, jim holtman <jholt...@gmail.com> wrote: > Where is the "column"? Is it in a matrix/dataframe? Why are you > trying to plot 12 points against 'z' which has 24 values? You can > reference the column by: > > plot(yourDF[, s]) > > where 's' is what you created as the column name. Need to refer to > indexing in the Intro to R. > > On Tue, Nov 30, 2010 at 11:40 AM, Graves, Gregory <ggra...@sfwmd.gov> wrote: >> Having given myself carpal tunnel looking for answer to this ... >> >> >> >> I have a dataset each column of which has 12 rows in it. I created a >> variable 'z' as follows: >> >> >> >> z=1:24 >> >> >> >> Since I have a large number of these plots to make, and they are a bit >> complex, I want to want to reference the column I want to plot via a >> variable containing the name of that column. As follows: >> >> >> >> similar='1978' >> >> s=paste('Y',similar,sep='') >> >> >> >> variable s now contains 'Y1978' which is the name of one of the columns. >> >> >> >> However, when I try to plot >> >> >> >> plot(z,s,type='l') >> >> >> >> I get a 'x and y lengths differ' error because variable s is being >> recognized as 'Y1978' length=1, rather than the contents of the column >> Y1978 length=12. >> >> >> >> I tried all the usual tricks I know like &s. How do you get R to >> reference a variable as a column name? >> >> >> >> Thank you. >> >> >> >> Gregory A. Graves, Lead Scientist >> >> Everglades REstoration COoordination and VERification (RECOVER) >> >> Restoration Sciences Department >> >> South Florida Water Management District >> >> Phones: DESK: 561 / 682 - 2429 >> >> CELL: 561 / 719 - 8157 >> >> >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> 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. >> > > > > -- > Jim Holtman > Cincinnati, OH > +1 513 646 9390 > > What is the problem that you are trying to solve? > > ______________________________________________ > 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. > -- Bert Gunter Genentech Nonclinical Biostatistics ______________________________________________ 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.