R 2.10
Windows 7
I am trying to plot three graphs on top of each other. I need to have the
axises perfectly aligned. For some reason the ticks on the y axes are slightly
off so they do not perfectly align. Can someone tell me how I can get the to
overlay each other perfectly? I thought the yaxp parameter would solve my
problem, but it does not. My data and code follows:
> summaryresults[1:20,]
Slope PctCont PctCat PctTTst
[1,] 0.05 7.4 5.6 6.3
[2,] 0.10 17.7 11.3 13.3
[3,] 0.15 32.7 18.7 25.6
[4,] 0.20 53.3 27.5 40.2
[5,] 0.25 72.1 41.2 54.5
[6,] 0.30 85.5 52.9 70.8
[7,] 0.35 93.9 65.2 83.6
[8,] 0.40 97.0 73.6 89.9
[9,] 0.45 99.7 84.8 96.5
[10,] 0.50 99.9 90.1 98.4
[11,] 0.55 100.0 93.2 99.7
[12,] 0.60 100.0 97.3 99.8
[13,] 0.65 100.0 98.8 100.0
[14,] 0.70 100.0 99.4 100.0
[15,] 0.75 100.0 99.8 100.0
[16,] 0.80 100.0 99.7 100.0
[17,] 0.85 100.0 100.0 100.0
[18,] 0.90 100.0 100.0 100.0
[19,] 0.95 100.0 100.0 100.0
[20,] 1.00 100.0 100.0 100.0
> plot(summaryresults[,"Slope"],summaryresults[,"PctCont"],type="b",yaxp=c(0,100,10))
> par(new=TRUE)
> plot(summaryresults[,"Slope"],summaryresults[,"PctCat"],type="b",yaxp=c(0,100,10))
> par(new=TRUE)
> plot(summaryresults[,"Slope"],summaryresults[,"PctTTst"],type="b",yaxp=c(0,100,10))
John David Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
University of Maryland School of Medicine Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
(Phone) 410-605-7119
(Fax) 410-605-7913 (Please call phone number above prior to faxing)
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