On 25-Mar-03 Phillip J. Allen wrote: > I am trying to make a bar plot of observations along a line or > specifically a drill hole with the bars widths representing the > interval of the observation and the length of the bar the actual > data. My data is in the following format: > > from(m) to(m) Intensity of silicification > 0 1.2 0 > 1.2 4.0 1 > 4.0 4.2 3 > 4.2 5.0 2 > 5.0 25 1 > 25.0 30.1 0 > 30.1 36.2 2 > ...... > > > Is the barplot() function what I really want to use?
It looks as though it should do: see in particular the arguments height, width, and space, to the function as described in help(barplot). For example: x0<-c(0, 1.2, 4.0, 4.2, 5.0, 25.0, 30.1) x1<-c(1.2, 4.0, 4.2, 5.0, 25.0, 30.1, 36.2) y<-c(0, 1, 3, 2, 1, 0, 2) w<-x1-x0 y[y==0]<-0.001 barplot(height=y,width=w,space=0) (the extra 0.001 gives a thickened baseline where y=0, to avoid the impression that there is no bar at such points) Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 167 1972 Date: 25-Mar-03 Time: 18:01:05 ------------------------------ XFMail ------------------------------ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
