I am a little confused about what you are trying to do. I know that you want
to put two distribution with different standard deviations on one plot. Do you
want to do this with the actual data in a data set or do you want to to do this
with two normally distributed gaussian curves based off the data table?
If you want to do this with the actual data set, you can just stack the columns
using table stack command in the menu. What the columns from the two
distributions are stack, you can just do a distribution of the stack columns.
thx
RLC
> From: Michael Bailey <jm-bailey@northwestern.edu>
> Date: 2006/01/17 Tue PM 01:00:16 EST
> To: jmp-l@lists.biostat.wustl.edu
> Subject: [jmp-l] graph of overlapping normal distributions
>
> In order to demonstrate the concept of effect size to my class, I
> want to show them two figures, each of overlapping normal
> distributions. (Same mean differences, different variances, to show
> why variance is part of effect size). jmp makes it very easy to
> generate random normal data, although I haven't figured out yet how
> to change the SD. More importantly, I can't figure out how to graph
> two distributions on the same axes.
>
> Thanks for any help.
> Mike Bailey
>
|