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I'll outline what i'm trying to do: I've written a program which will fit a polynomial to a set of data. The data represents a spectra. I want to be able to fit a ploynomial to an experimental data set and then also fit several reference data sets(which i've been able to do. So i have a polynomial for the experimental data and several for the reference sets.

What i want to do now is find out what combination of the reference polynomials wil best fit the experimental data set and therefore find the contribution of each reference to the final measured data. The problem is that the degree of each of the polynomials is not nesessarly the same.

Any ideas? do i make myself clear?

Thanks

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# Contribution to a ploynomial

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