On Jun 27, 2011, at 8:36 PM, Joshua Wiley wrote:

Hi Ivo,

It depends how you are making the histogram plot.  If you are using
the traditional graphics hist() function,

And if you are using histogram() you should be looking at , ... surprise, surprise, ... the breaks argument.

then look at the argument,
"breaks" (type ?hist at the console to pull up the documentation
explaining this).  For example:

hist(x = sample(1:20, 300, TRUE), breaks = seq(0, 20, by = 2))

HTH,

Josh

On Mon, Jun 27, 2011 at 4:23 PM,  <gwanme...@aol.com> wrote:
Dear Sir,

How do I change the intervals on the x axis of a histogram plot; let us say for example the intervals were 0,5,10,15,and 20, and I wanted to change
the  intervals to 0,2,4,6,8,10,12,14,16,18,20.

I look forward to receiving your words of wisdom.

Ivo

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--
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/

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David Winsemius, MD
West Hartford, CT

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