[R] Put short string labels vertically near tick marks on bottom axis

Jim Lemon jim at bitwrit.com.au
Wed May 14 00:17:24 CEST 2014


On Tue, 13 May 2014 02:52:09 PM Hurr wrote:
> A month ago I was considering the forum topic
> “Label axis tick marks with a simple function of axis value”
> and haven’t had time to work much on it.
> Since then I have written a little program that makes
> period labels for the frequency axis, but I don’t know how to attach 
them.
> I expected the following code to work.
> Later there will be more requirements like
> 1) labels should be vertical
> 2) the bottom of the labels should line up with the ticks
> 3) requirements beyond today’s consideration
> 
> horAxisLims=c(0,7200)
> 
verData=c(1,365,809,1252,1753,2191,2922,3409,3896,4383,4819,5255,5691,6128,6
> 564,7000)
> 
horData=c(1,300,800,1200,1700,2100,2900,3400,3800,4300,4800,5200,5600,6100,
> 6500,7000) #not at tics
> 
horTicLocs=c(1,365,809,1252,1753,2191,2922,3409,3896,4383,4819,5255,5691,612
> 8,6564,7000)
> 
horLabels=c(”1Yr”,”1Da”,”10.8Hr”,”7Hr”,”5Hr”,”4Hr”,”3Hr”,”2.57Hr”,”2.25Hr”,
> ”2Hr”,”1.82Hr”,”1.67Hr”,”1.54Hr”,”1.43Hr”,”1.34Hr”,”1.25Hr”) 
plot(horData,
> verData,xaxt='n',xlim= horAxisLims)
> axis(1,tick=TRUE,at= horTicLocs, labels= horLabels)
> 
Hi Hurr,
This might solve questions 1 and 2 for you:

axis(1,tick=TRUE,at= horTicLocs,labels=rep("",length(horLabels)))
library(plotrix)
staxlab(1,at=horTicLocs,labels=horLabels,srt=90,adj=c(1,0))

As for question 3, I'll have to pass as I make no claims to prophecy.

Jim



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