bivariate_normal function has been removed from matplotlib

[DaisyLyu522]

Hello,
I am trying to run swifr_train and it gives me the error:
Traceback (most recent call last): File "/home/anaconda3/bin/swifr_train", line 5, in <module> from swifr_pkg.SWIFr_train import main File "/home/anaconda3/lib/python3.11/site-packages/swifr_pkg/SWIFr_train.py", line 13, in <module> from matplotlib.mlab import bivariate_normal ImportError: cannot import name 'bivariate_normal' from 'matplotlib.mlab' (/home/anaconda3/lib/python3.11/site-packages/matplotlib/mlab.py)

I noticed that bivariate_normal function has been removed from matplotlib, so I modify the from matplotlib.mlab import bivariate_normal to be from scipy.stats import multivariate_normal.

After this modification, I ran swifr_train again and receive another error:
Traceback (most recent call last): File "/home/anaconda3/bin/swifr_train", line 5, in <module> from swifr_pkg.SWIFr_train import main File "/home/anaconda3/lib/python3.11/site-packages/swifr_pkg/SWIFr_train.py", line 14, in <module> from matplotlib.mlab import normpdf ImportError: cannot import name 'normpdf' from 'matplotlib.mlab' (/home/anaconda3/lib/python3.11/site-packages/matplotlib/mlab.py)

It seems that some packages have been removed from the matplotlib. I can search for alternative and modify the code but I'm worrying that it cause some issues. Do you have any suggestions?

As for reference, when installing swifr, I received the error:
`[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for scipy
Running setup.py clean for scipy
error: subprocess-exited-with-error

× python setup.py clean did not run successfully.
│ exit code: 1
╰─> [9 lines of output]

  setup.py clean is not supported, use one of the following instead:
  
    - git clean -xdf (cleans all files)
    - git clean -Xdf (cleans all versioned files, doesn't touch
                        files that aren't checked into the git repo)
  
  Add --force to your command to use it anyway if you must (unsupported).
  
  [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed cleaning build dir for scipy
Failed to build numpy scikit-learn scipy
ERROR: Could not build wheels for numpy, scikit-learn, scipy, which is required to install pyproject.toml-based projects`

So I uninstalled numpy and installed swifr with code below:
pip install -U numpy
pip install --no-deps swifr

[hmsnell]

should be fixed with most updated version of SWIF(r) v. 2.2.1!