[PD] cumulative distribution?
Tebjan Halm
tebjan at gmx.de
Wed Nov 9 16:38:10 CET 2005
>>(cos(x) + 1) * c with x inside the range -Pi to 0 and c is a constant
>>that defines the output range of the curve 0 to c ...
sorry, the output range will be 0 to 2*c ... because the cos range -1 to 1
gets shifted upwards by the +1 to 0..2 and c scales this range ...
pete mcpartlan schrieb:
> 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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