Hi,
Here is my code:
> x_data.frame(c(0,0,1,2,3),c("a","a","a","b","a"),c(.3,.5,.6,.1,.2))
> y_tapply(x[,3],x[,c(2,1)],mean)
> y
0 1 2 3
a 0.4 0.6 NA 0.2
b NA NA 0.1 NA
> plot(y[1,])
I would like to have, on the x-axis, the ticks and labels defined by
the 1st column in x -- that means ticks at 0, 1 and 3. But the plot
gives ticks at 1, 2 and 4. Even if I specify:
axis(1,at=seq(0,3,by=1),seq(0,3,by=1))
axis(2)
the first point is plotted at x=1!
How can I get the good axis?
Thank you,
Tristan Lorino
--
Laboratoire Central des Ponts et Chaussées
[Division ESAR ? Section AGR]
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44341 Bouguenais Cedex
France
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