R help - Oct 2003 - questions about axis

Dear helper.

I am a beginer. 
I have difficulties to handle axis. I want to draw axis label such that axis has
range of [-0.4,0.4] with intervel 0.2 for x and y axis.
Some part of range do not have data points. Thus, plot does not show whole
range. How can I enforce plot to depict the whole range regardless of existence
of data points ?

Another problem is that when I depict axis labels, some labels are overlapped
because interval is very small. In this case, I'd like to put one of label
into insde the box which is drawn by plot.
How can I do this ?

If I can see related source code, it will be very helpful.

Thanks a lot,
Yunho Hong
 
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Hi,

On Wed, 22 Oct 2003, yyh wrote:
> I have difficulties to handle axis. I want to draw axis label such that
axis has range of [-0.4,0.4] with intervel 0.2 for x and y axis.
> Some part of range do not have data points. Thus, plot does not show whole
range. How can I enforce plot to depict the whole range regardless of existence
of data points ?
You can draw the plot from first principle.  For example:
  x = seq(-0.4, 0.4, length = 50)
  y = runif(50, -0.2, 0.2)
  plot.new()
  plot.window(xlim = c(-0.4, 0.4), ylim = c(-0.4, 0.4))
  axis(1, at = seq(-0.4, 0.4, by = 0.2))
  axis(2, at = seq(-0.4, 0.4, by = 0.2))
  points(x, y)
  box()
> Another problem is that when I depict axis labels, some labels are
overlapped because interval is very small. In this case, I'd like to put one
of label into insde the box which is drawn by plot.
> How can I do this ?
Try:
  title(xlab = "This is my x-label", line = -2)
 
Of course, this is just a silly example, with 50 uniform random numbers 
between -0.2 and 0.2.  But you get the idea...

-- 
Cheers,

Kevin

---------------------------------------------------------------
Ko-Kang Kevin Wang
Master of Science (MSc) Student
SLC Tutor and Lab Demonstrator
Department of Statistics
University of Auckland
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Homepage: http://www.stat.auckland.ac.nz/~kwan022
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