topic Re: scipy.linalg in Developers Questions

scipy.linalg

AlessioFumagalli — Wed, 15 Jun 2016 09:51:05 GMT

Hi, is there a possibility to use (or to install) the module linalg of scipy?

Re: scipy.linalg

DanPatterson_Retired — Wed, 15 Jun 2016 19:33:32 GMT

Not alone, but the code is here scipy/scipy/linalg at master · scipy/scipy · GitHub

What is it exactly do you need since the vast majority of the functionality in that module can be pulled from numpy which is already installed and in use for arcmap. If you install arcgis pro then scipy is also available directly.

So what is you need exactly and I can simplify the route to take.

Re: scipy.linalg

AlessioFumagalli — Thu, 16 Jun 2016 08:00:29 GMT

Hi, thanks for the answer. In my problem I have a large sparse linear system to solve, where the matrix is already implemented using scipy.sparse. However in my version of ArcGIS (License type: Advanced) the module for sparse linear solvers is not included. My solution now is to convert the matrix as a dense numpy matrix and use the tools in numpy.linalg. This is only a partial solution because when I'll need to solve bigger problem I really need the full scipy package.

PS Version 10.4.0.5524

Re: scipy.linalg

DanPatterson_Retired — Sun, 12 Dec 2021 07:03:33 GMT

hmmm because I installed ArcGIS Pro ... even if you have no intention of using it

Dan demos in python 3.4
Date...
>>> import scipy.linalg as sl
>>> dir(sl)
>>> len(dir(sl))
132
‍‍‍‍‍‍

here is an example on my system on one computer

C:\Python27\ArcGIS10.4\Lib\site-packages\scipy\linalg

C:\Python34\Lib\site-packages\scipy\linalg

Re: scipy.linalg

AlessioFumagalli — Thu, 16 Jun 2016 09:06:09 GMT

Hi, I managed to install part of the sparse linear algebra with pip (C:\Python27\ArcGIS10.4\Scripts\pip). Some packages are missed (lapack/blas related) but it works and for the moment I'm satisfied. Thanks again for the support.
Best regards