Approximation of a function wth piecewise constant functions

[andreas]

Hello,

I have 100 values between 0 and 255.
I want to approximate this function
with 10 non-overlapping intervals, 
where the degree of freedom is 
* the  start and endpoint
* the value associated to the interval.

This is probably a classical problem
but I got no reply on sci.op-research.

Thanks in advance,

andreas

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