> > > From: "Jason Lee" <[EMAIL PROTECTED]> > Date: May 23, 2008 10:06:18 AM EDT > To: r-help@r-project.org > Subject: [R] Fwd: Advise in R- plotting graphs > > > Hi > > I tried and it is not what im looking .. > > I basically issue plot(data$"V1",data$"V2") as the matrix have the two > headers..But essentially what I would like is relabel or somehow > differentiate row 5 from the rest of the points on the graph.
If I understand correctly what you want the code provided by Jim Holtman works provided you omit the " type = "l" " part. If you convert the matrix to a data frame you can use the ggplot2 package to do this kind of thing very flexibly (see code below) > > > In other words, I wanted to see all the points but at the same time > see the > particular point (row 5 in this case) on the graph as another point > of color > in the graph. > > Please advise. > > Thanks., > > > > On Fri, May 23, 2008 at 11:00 PM, jim holtman <[EMAIL PROTECTED]> > wrote: > >> try this: >> >> x <- matrix(runif(15, 100, 300), ncol=3) >> plot(x[,1], x[,2], type='l') >> points(x[5,1], x[5,2], pch=17, cex=3, col='red') # plot point #5 #Alternative solution using ggplot2# x2 <- data.frame(x) x2$factor <- factor(c(1,1,1,1,2)) library(ggplot2) qplot(X1,X2, data=x2, colour=factor) >> >> >> On Fri, May 23, 2008 at 8:50 AM, Jason Lee <[EMAIL PROTECTED]> >> wrote: >> >>> Hi >>> >>> I have a data table matrix,"data" which looks like below:- >>> V1 V2 V3 >>> 1 -6382.719 -1096.554 6998994 >>> 2 -some values- >>> 3 -some values- >>> 4 -some values- >>> 5 -some values- >>> >>> Querying dim of "data" gives me 3 columns and 5 rows. >>> >>> And currently I want to plot "V1" against "V2" with the condition >>> that I >>> want to mark(color) the point(row 5) on the graph. This is so i >>> could see >>> some triangle shape thing on the graph for row 5. >>> >>> I couldnt recall how I could use repo() to change the line 5 to >>> some value >>> to differentiate with others. And then using PCH for the color. >>> >>> Please advise. Thanks. >>> >>> -jason >>> >>> [[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<http://www.r-project.org/posting-guide.html >>> >>> > >>> and provide commented, minimal, self-contained, reproducible code [[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.
