[R] questions about axis

[Ko-Kang Kevin Wang]

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
New Zealand
Homepage: http://www.stat.auckland.ac.nz/~kwan022
Ph: 373-7599
    x88475 (City)
    x88480 (Tamaki)