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

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

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

John, you need ylim for that capability. Rich tmp - read.table(textConnection( Slope PctCont PctCat PctTTst 0.05 7.45.6 6.3 0.1017.7 11.313.3 0.1532.7 18.725.6 0.2053.3 27.540.2 0.2572.1 41.254.5 0.3085.5 52.970.8

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

use 'plot' and 'lines' plot(x,y1,ylim=range(c(y1,y2,y3))) lines(x,y2) lines(x,y3) Sent from my iPad On Apr 22, 2011, at 23:55, John Sorkin jsor...@grecc.umaryland.edu wrote: R 2.10 Windows 7 I am trying to plot three graphs on top of each other. I need to have the axises perfectly

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

Hi Dr. Sorkin, One way of doing what you want is via matplot(): with(d, matplot(Slope, d[, -1], type = 'l', lty = 1)) where d is your data. HTH, Jorge On Fri, Apr 22, 2011 at 11:55 PM, John Sorkin wrote: R 2.10 Windows 7 I am trying to plot three graphs on top of each other. I need to