[R] plot() axis problem
Bill Simpson
wsi at gcal.ac.uk
Fri Jul 20 12:38:26 CEST 2001
This posting just illustrates the problem with plot()
x<-1:20
y<-c(1:10,301:310)
plot(x,y)
xrange<-c(1,10)
plot(x,y,xlim=xrange) #uses ylim=range(y)
This is the default behaviour of plot() and I think it is not sensible.
By default the range of the y axis should span the y values corresponding
to the points plotted. In this example the yaxis should span 1-10 rather
than 1-310. This does the sensible thing:
plot(x,y,xlim=xrange,ylim=range(y[x<=max(xrange) & x>=min(xrange)]))
I suggest that plot() changes to this default behaviour.
Bill
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