# [PD] cumulative distribution?

pete mcpartlan petemcpartlan at yahoo.co.uk
Wed Nov 9 16:11:51 CET 2005

```hello,

i need help with a maths problem... i am trying to plot a cumulative
distribution curve to weight random. I have a [random] that feeds into a
chain of [moses], sililar to the markov chain example but what i want to
do is have a table dump into the right inlet of each moses changing the
weighting. so far so good. what i need help with is the curve which
needs to make it more likely for the next result to be near the  same
position. the attatched patch has an array with the sort of function it
should be... like an s stetched at both ends... is there a way i can do
this with expr? or am i going to have to type out a list for each state?
i'm sure this is probably quite a simple maths problem... but beyond
me... or other ideas? might it be simpler to have a longer array with
the curve is then plotted at different points back into the array... but
considering i'm probably going to have 16+ of these and other stuff i
want to make it as simple as possible....

thanks in advance and apologies for rambling a bit..

pete

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