Subject: least squares again

From: [email-masked] (Antonio Fernandez Ramos)
Date: Mon, 27 Mar 1995 17:47:56 +0200

Dear netters,

Through the fault of my terminal, I lost the answers to the
following mail:

I am trying to do a non linear least squares fit, 
using a Marquardt type algoritm, but I need to restrict some
parameters to make my function behaves correctly.
Is available any program to constrain parameters to be positive?

Thanks.

I am gratefully if you answer the question again.

Thanks in advice.