[R] axis() plot() - step

Ott Toomet siim at obs.ee
Fri Aug 23 17:11:16 CEST 2002


I think the following example would help:

plot(-2:2,-2:2, xaxt="n", yaxt="n")
axis(1, at=seq(-2,2,by=0.5))
axis(2, at=seq(-2,2,by=0.5))

You have to specify *axt="n" in order to not draw them initially, and then
draw your own axis using at=c(whatever values you want the tickmarks to be



On Fri, 23 Aug 2002, Nolwenn Le Meur wrote:

  |Stupid question I guess but I can't figure out how to have a span of 0.5
  |instead of 1 in my graph.
  |Actually, I want to create a plot with x(-2,2) and y(-2,2) and an step of
  |0.5 along the axis.
  |Does somebody can help me ? Is it in par(), axis() or plot() that I have to
  |add something ?

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