Dear Jim, Thank you very much for your suggestion! It worked perfectly! Thanks for clarifying how things work.
Best regards, Charles On Wed, Sep 11, 2013 at 3:49 AM, Jim Lemon <j...@bitwrit.com.au> wrote: > On 09/11/2013 09:06 AM, Charles Novaes de Santana wrote: > >> Dear all, >> >> I am following instructions of FAQ 7.2 ( >> http://cran.r-project.org/doc/**FAQ/R-FAQ.html#How-can-I-** >> create-rotated-axis-labels_**003f<http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-can-I-create-rotated-axis-labels_003f> >> ) >> to create rotated labels in my plots, but I am facing some problems when >> plotting variables with small values (in my case, values between 0.001 and >> 0.007). >> >> When I try to plot these small values, the X-label of my plot doesn't >> appear. Please find below the example I am trying to run: >> >> #Definition of my variable and of the labels >> a<-c(0.007,0.0004,0.0001) >> laba<-c("number1","number2","**number3") >> >> #This plot doesn't work fine (label doesn't appear) >> par(mar = c(7, 4, 4, 2) + 0.1) >> plot(a,xaxt="n",xlab="",ylab="**Y-Label") >> axis(1,labels=FALSE,tick=**FALSE) >> mtext(1,text="X-Label",line=6) >> text(1:length(a), par("usr")[3] - 0.25, srt = 45, adj = 1,labels = a, xpd >> = >> TRUE,cex=0.75) >> >> #If I just multiply my variable, the plot works fine (label appears) >> par(mar = c(7, 4, 4, 2) + 0.1) >> plot(1000*a,xaxt="n",xlab="",**ylab="Y-Label") >> axis(1,labels=FALSE,tick=**FALSE) >> mtext(1,text="X-Label",line=6) >> text(1:length(a), par("usr")[3] - 0.25, srt = 45, adj = 1,labels = laba, >> xpd = TRUE,cex=0.75) >> >> Do you have any idea about why is it happening? I much appreciate any >> help! >> >> Hi Charles, > The problem lies in your specification of the y values for the labels in > the "text" call. Because you are subtracting a large value relative to the > range of y values, the labels are displayed way off the bottom of the plot. > Try this instead: > > text(1:length(a),par("usr")[3]**-0.0002,srt=45,adj=1, > labels=a,xpd=TRUE,cex=0.75) > > If you want to pass explicit values for the positions on the plot, check > them against the x and y ranges. > > Jim > -- Um axé! :) -- Charles Novaes de Santana, PhD http://www.imedea.uib-csic.es/~charles [[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.
