[Matplotlib-users] Fitting a curve

[Wolfgang K. <wke...@go...>]

I know this is not completely matplotlib related but perhaps you can 
help me none the less:
I want to fit a curve to a set of data. It's a very easy curve: y=ax+b.
But I want errors for a and b and not only the rms. Is that possible. 
What tasks do you recommend for doing that.
Thanks in advance
    Wolfgang