[SciPy-User] ier-integer in optimize.leastsq
Philip_Bransford at vrtx.com
Philip_Bransford at vrtx.com
Mon Mar 26 09:54:03 EDT 2012
1.49012e-08 = numpy.sqrt(numpy.finfo(float).eps)
From: "Johannes Radinger" <JRadinger at gmx.at>
To: scipy-user at scipy.org
Date: 03/26/2012 06:11 AM
Subject: [SciPy-User] ier-integer in optimize.leastsq
Sent by: scipy-user-bounces at scipy.org
Hi,
Some months ago I started already this topic,... Now, while writing my
manuskript this topic comes up again. I am using the optimize.leastsq
function
and would like to describe my results especielly the "ier-level".
If ier in my result is 1, then the solution which was found ensures a
ftol-"quality", resp. the sum of squares for the relative errors are below
the ftol value?
As I didn't set any ftol value, the default value is used. Therefore, in
the case of optimization
results with ier=1, is it possible to state:
"For all fitted solutions the relative errors in the sum of squares are
below the desired standard value of 1.49012e-08" ???
Where does this standard value come from?
Best regards,
Johannes
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