An error occured when I use the function load_model_from_dir

[Jerometongpu]

Thank you very much for sharing your code.
When I download your example.py and run it, I found an error occured when I use
'''llda_model_new.load_model_from_dir(save_model_dir, load_derivative_properties=False)'''.

And here is the traceback:
'''
Traceback (most recent call last):

File "", line 1, in
runfile('D:/putong/taxiLDA/Labeled-LDA-Python-master/example/example.py', wdir='D:/putong/taxiLDA/Labeled-LDA-Python-master/example')

File "D:\ana\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 827, in runfile
execfile(filename, namespace)

File "D:\ana\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 110, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)

File "D:/putong/taxiLDA/Labeled-LDA-Python-master/example/example.py", line 78, in
llda_model_new.load_model_from_dir(save_model_dir, load_derivative_properties=False)

File "..\model\labeled_lda.py", line 794, in load_model_from_dir
self._initialize_derivative_fields()

File "..\model\labeled_lda.py", line 126, in _initialize_derivative_fields
self.alpha_vector_Lambda = self.alpha_vector * self.Lambda

ValueError: operands could not be broadcast together with shapes (0,) (6,6)
'''
I think something goes wrong when the program loads and reads the model.

[JoeZJH]

Sorry, I am busy these days I have read your question, I think the problem is your model has not been written completely, or something wrong when writing the model to disk Are you sure your model in the disk is ok? please use my original code run 'python example.py' again, and tell me if there is any problem