[R] Better y-axis labels, and x-axis scaling

2006-11-02 Thread Andre Nathan
Hello

I'm plotting some data using matplot with a logarithmic scale on the
y-axis. This is the call to matplot I'm using:

  matplot(turns, distances, type = l, log = y, lty = solid,
  ylab = , xlab = Time steps, col = c(black))

The values for the 'distances' vector are always between 0 and 1.

The result can be seen at

  http://sneakymustard.com/tmp/plot.jpg

As you can see, the default y axis labels are not very nice, as it uses
irregular intervals.

I tried using variations of

  axis(2, at = pretty(c(0, ceiling(max(distances))), 5))

or

  yaxp = c(round(mind, 2), round(maxd, 2), -4)

in the matplot() call.

Is there anything else I could try for better labeling of values between
0 and 1 in a log-scale axis? Hints or pointers to the appropriate docs
are appreciated :)

Also, is there a command/option to change the plotted spacing between
the labels in a plot? In the plot above, I'd like to make the space
between each label in the x-axis smaller (maybe something similar to the
width/space options in barplot()).

Thanks in advance,
Andre

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Re: [R] Better y-axis labels, and x-axis scaling

2006-11-02 Thread Andre Nathan
On Thu, 2006-11-02 at 23:10 +, Ben Bolker wrote:
 If you really wanted equal scaling you could do
[...]

Thanks Ben. Do you know how the the x axis can be made shorter?

Best regards,
Andre

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Re: [R] Better y-axis labels, and x-axis scaling

2006-11-02 Thread Andre Nathan
On Thu, 2006-11-02 at 21:49 -0200, Andre Nathan wrote:
 Do you know how the the x axis can be made shorter?

I did it setting the width in the postscript() call, not sure if that's
the best way.

Andre

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[R] Multiple barplots on the same axis

2006-10-13 Thread Andre Nathan
Hi

R newbie here :)

I need to plot 3 barplots in the same axis, something like

   |
   |  ___
   | | | _| | _| | _ 
   |   _ | || | _ | || | _ | || |
   |  | || || || || || || || || |
  -+-
   | v1   v2   v3


Is there any documentation describing how to achieve that, and what data
file layout would make the job easier?

Thanks in advance,
Andre

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