Don't delete the context of the message. If you are sure that windowsize is positive, are you also sure that it is less than length(inputseq)?
> seq(1, -10, 1) Error in seq.default(1, -10, 1) : wrong sign in 'by' argument ---------------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77843-4352 Date: Tue, 21 Feb 2012 11:43:15 -0800 (PST) From: bioinformatics <[email protected]> To: [email protected] Thats all well and good but the number im using is a positive so that shouldn't be happening. -- From: [email protected] [mailto:[email protected]] On Behalf Of Richard M. Heiberger Sent: Tuesday, February 21, 2012 1:36 PM To: bioinformatics Cc: [email protected] Subject: Re: [R] In R 2.14.1, what does wrong sign in 'by' argument mean? > seq(1,4,1) [1] 1 2 3 4 > seq(1,4,-1) Error in seq.default(1, 4, -1) : wrong sign in 'by' argument > On Tue, Feb 21, 2012 at 1:53 PM, bioinformatics <[email protected]> wrote: > Here is my code > > > slidingwindowplotATGC = function(windowsize, inputseq) > { > > starts = seq(1, length(inputseq)-windowsize, by = windowsize) > n = length(starts) > chunkGs = numeric(n) > chunkAs = numeric(n) > chunkTs = numeric(n) > chunkCs = numeric(n) > for (i in 1:n) { > chunk = windowsize[starts[i]:(starts[i]+9999)] > chunkG = sum("g" == chunk)/length(chunk) > chunkA = sum("a" == chunk)/length(chunk) > chunkT = sum("t" == chunk)/length(chunk) > chunkC = sum("c" == chunk)/length(chunk) > chunkGs[i] = chunkG > chunkAs[i] = chunkA > chunkTs[i] = chunkT > chunkCs[i] = chunkC > } > > > plot(starts,chunkGs,type="b",ylim=c(min(min(chunkAs),min(chunkTs),min(chunkC s),min(chunkGs)),max(max(chunkAs),max(chunkTs),max(chunkCs),max(chunkGs))),c ol > = "red") > points(starts,chunkTs,col = "blue") > points(starts,chunkAs,col = "green") > points(starts,chunkCs) > } > > > Im getting the following error message, > > Error in seq.default(1, length(inputseq) - windowsize, by = windowsize) > : > wrong sign in 'by' argument > > > which I never got before when running codes of this sort, infact I re ran > old code that worked perfectly before, except this time Im getting this > error message which doesn't seem to make any sense at all! I need help with > this before I go completely insane... Maybe Im just bad at this program, > but > it seems to me that it has a mind of its own... I was also getting an error > message before regarding the ylim function, stating that it needed to be a > finite value, which is what I was giving it? HELP!!! > > -- > View this message in context: > http://r.789695.n4.nabble.com/In-R-2-14-1-what-does-wrong-sign-in-by-argumen t-mean-tp4407926p4407926.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting -guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ [email protected] 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. ______________________________________________ [email protected] 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.
