scatterplot to boxplot translation?
On Dec 9, 2011, at 2:50 PM, Uwe Ligges wrote:
On 09.12.2011 20:41, Vining, Kelly wrote:
Thanks for the tip on "cut," seems like it should work. I must still be missing something, though. Here, I'm cutting on the y variable, then attempting the boxplot: cutRPKM<- cut(count$RPKM, breaks=4) head(cutRPKM) [1] (-0.0995,24.8] (-0.0995,24.8] (-0.0995,24.8] (-0.0995,24.8] (-0.0995,24.8] [6] (-0.0995,24.8] Levels: (-0.0995,24.8] (24.8,49.8] (49.8,74.7] (74.7,99.6] boxplot(as.numeric(cutRPKM)) This gives me a single box instead of five boxes. ??
You obviously want: boxplot(count$RPKM ~ cut(count$RPKM, breaks=seq(0, max(count$RPKM), by=100)))
In that context (having defined a cut-variable with single-integer break argument), would have thought this should work: boxplot(count$RPKM ~ cutRPKM)
David. > > > Uwe Ligges > > >> Thanks again, >> --Kelly V. >> ________________________________________ >> From: David Winsemius [dwinsemius at comcast.net] >> Sent: Friday, December 09, 2011 11:14 AM >> To: Vining, Kelly >> Cc: r-help at r-project.org >> Subject: Re: [R] scatterplot to boxplot translation? >> >> On Dec 9, 2011, at 2:11 PM, Vining, Kelly wrote: >> >>> My apologies if anyone is seeing this twice...looks like my previous >>> message didn't come through... >>> >>> Dear UseRs, >>> I have a feeling this is a relatively simple question, but I'm >>> having a hard time getting my head around it. I have a simple x-y >>> scatterplot with many points, as shown below(attached). I'd like to >>> make a boxplot of this by interval, such that there is one box >>> representing the points in the 0-100 interval, one for the 101-200 >>> interval, and so on. How do I structure my R data frame to be able >>> to generate such a boxplot? >>> >> >> ?cut >> >>> >>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org >>> ] On Behalf Of Vining, Kelly >>> Sent: Friday, December 09, 2011 11:01 AM >>> To: r-help at r-project.org >>> Subject: [R] scatterplot to boxplot translation? >>> >>> >>> <C_count_vs_RPKM.png>______________________________________________ >>> R-help at 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. >> >> David Winsemius, MD >> West Hartford, CT >> >> ______________________________________________ >> R-help at 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. David Winsemius, MD West Hartford, CT