RuntimeWarning: invalid value encountered in divide

[clee162]

1. Operating System (Linux, MacOS, Windows): Linux
2. Hardware type (x86, ARM..) and RAM: x86, 376 GB RAM
3. Python Version (e.g. 3.9): 3.10.15
4. Caiman version (e.g. 1.9.12): 1.11.3
   How you installed Caiman (pure conda, conda + compile, colab, ..): conda
5. Details:

During the CNMF fitting step, the following warnings are printed. Everything continues to run and the results appear to be normal. I am using Scipy version 1.14.1, could this be a version compatibility issue? Thank you for your help!

/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/caiman/base/rois.py:60: RuntimeWarning: invalid value encountered in divide
cm = (coor @ A / A.sum(axis=0)).T
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/scipy/ndimage/_measurements.py:1541: RuntimeWarning: invalid value encountered in scalar divide
results = [sum(input * grids[dir].astype(float), labels, index) / normalizer
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/caiman/base/rois.py:60: RuntimeWarning: invalid value encountered in divide
cm = (coor @ A / A.sum(axis=0)).T
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/scipy/ndimage/_measurements.py:1541: RuntimeWarning: invalid value encountered in scalar divide
results = [sum(input * grids[dir].astype(float), labels, index) / normalizer
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/caiman/base/rois.py:60: RuntimeWarning: invalid value encountered in divide
cm = (coor @ A / A.sum(axis=0)).T
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/scipy/ndimage/_measurements.py:1541: RuntimeWarning: invalid value encountered in scalar divide
results = [sum(input * grids[dir].astype(float), labels, index) / normalizer
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/caiman/base/rois.py:60: RuntimeWarning: invalid value encountered in divide
cm = (coor @ A / A.sum(axis=0)).T
/usr/local/bin/anaconda3/envs/caiman-1-11-3/lib/python3.10/site-packages/scipy/ndimage/_measurements.py:1541: RuntimeWarning: invalid value encountered in scalar divide
results = [sum(input * grids[dir].astype(float), labels, index) / normalizer

[kushalkolar]

that means there's a nan or infinity somewhere in that division, if your results look fine it's probably fine, you can usually ignore warnings.