On Fri, 25 Sep 2020 at 19:58, rana <[email protected]> wrote:
>
> I am working with Relax 4.1.3. Tried the "single_model.py" script on some 
> Ubiquitin data from our lab. I am getting an error
>
>   File "/opt/python2.7/lib/python2.7/site-packages/minfx/grid.py", line 158, 
> in grid
>     if A != None and b != None:
> ValueError: The truth value of an array with more than one element is 
> ambiguous. Use a.any() or a.all()

Hi Ranabir,

Thank you for sending this to the relax users mailing list.  I've been
looking into this and I do not understand what is happening.  The
error you see was removed back in 2015 (back when it was instead a
depreciation warning).  The commit is:

    
https://sourceforge.net/p/minfx/code/ci/14f3ffa68558e613b21a3c69eabd69ee177586fe/

The version of relax you are using should not experience this error.
I wonder if there are multiple versions of minfx installed on your
system.  Could you copy and paste the output of the following command
into an email:

$ relax -i

This will list all the installed packages.  The expected result is
that minfx is found by relax within the relax source directories.
However I guess that this command will show that there is an old minfx
Python site-package installed which is somehow being loaded.

Cheers,

Edward


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