[Matplotlib-users] Curve Fitting

[Saloni Rao]

Hi,
I was trying to write some Ipython code for Non linear Model fitting for a complex formula( having polynomials in numerator and denominator). It has 3 variables for which data is available and 3 variable which have to be fitted. For data I have an excel file from which I am uploading the data.
I tried using scipy.optimize, lmfit and kmpfit but failed badly. Could you suggest me a way to work around this problem?
Thanks.