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 Author Comment/Response simplexe 11/19/06 09:52am Hi all. Let's say I want to do a non linear least squares fit of exp(x) on interval [0.25, 5] with some combination of c_i x^i, i=0, .., n. How can I do to set n=3 for example and perform the fit and then try again with another value for n (ie, only n changes and the set of parameters gets more c_i's) ?? I tried : ---------------------- data = Table[{x, Exp[x]}, {x, 0.25, 5, 0.025}]; n= 3; n = 3; NonlinearFit[data, NSum[c_i x^i, {i, 0, n}], x, Table[c_i, {i, 0, n} ]] ---------------------- But I only got errors .. ? URL: ,

 Subject (listing for 'Variable number of parameters') Author Date Posted Variable number of parameters simplexe 11/19/06 09:52am Re: Variable number of parameters simplexe 11/23/06 05:22am Re: Variable number of parameters Forum Modera... 11/23/06 09:21am Re: Variable number of parameters simplexe 11/24/06 09:35am
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