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What steps will reproduce the problem?
1. Trying to use MIGRAD and MINOS to find errors on a non-linear function.
2.
3.
What is the expected output? What do you see instead?
I expect to see amples (NEW API)correct parameter errors. The parameters seem
to fit well but the errors with just MIGRAD or HESSE seem too small.
When I run MINOS I get outputs that say:
negative or zero diagonal element 0 in covariance matrix
negative or zero diagonal element 1 in covariance matrix
MnMinos could not find upper value for parameter 1
I am not really sure what this means or what I could do to fix it. Any help or
explanation would be nice, Thank you!
What version of the product are you using? On what operating system?
I am using the newest version of pyminuit
Original issue reported on code.google.com by kcremin%[email protected] on 8 Aug 2011 at 5:48
The text was updated successfully, but these errors were encountered:
Original issue reported on code.google.com by
kcremin%[email protected]
on 8 Aug 2011 at 5:48The text was updated successfully, but these errors were encountered: