[R] Problem having tick marks aligned when plotting three graphs on top of one another.

From: John Sorkin <jsorkin_at_grecc.umaryland.edu>
Date: Fri, 22 Apr 2011 23:55:54 -0400


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)

Confidentiality Statement:
This email message, including any attachments, is for th...{{dropped:6}}



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. Received on Sat 23 Apr 2011 - 03:59:14 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Sat 23 Apr 2011 - 06:30:32 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive