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Re: Mat file saving opion.


From: swagata Mukherjee
Subject: Re: Mat file saving opion.
Date: Wed, 5 Jan 2022 06:33:16 +0530

Hi,
Sorry did not attach the file.

getting following error 
ValueError                                Traceback (most recent call last)
<ipython-input-7-3862af9149b9> in <module>
      1 import scipy.io as sio
----> 2 traces = sio.loadmat('TRACES1.mat')

D:\Anaconda\lib\site-packages\scipy\io\matlab\mio.py in loadmat(file_name, mdict, appendmat, **kwargs)
    224     with _open_file_context(file_name, appendmat) as f:
    225         MR, _ = mat_reader_factory(f, **kwargs)
--> 226         matfile_dict = MR.get_variables(variable_names)
    227 
    228     if mdict is not None:

D:\Anaconda\lib\site-packages\scipy\io\matlab\mio4.py in get_variables(self, variable_names)
    389         mdict = {}
    390         while not self.end_of_stream():
--> 391             hdr, next_position = self.read_var_header()
    392             name = asstr(hdr.name)
    393             if variable_names is not None and name not in variable_names:

D:\Anaconda\lib\site-packages\scipy\io\matlab\mio4.py in read_var_header(self)
    345            position in stream of next variable
    346         '''
--> 347         hdr = self._matrix_reader.read_header()
    348         n = reduce(lambda x, y: x*y, hdr.dims, 1)  # fast product
    349         remaining_bytes = hdr.dtype.itemsize * n

D:\Anaconda\lib\site-packages\scipy\io\matlab\mio4.py in read_header(self)
    115         O, rest = divmod(rest, 100)  # unused, should be 0
    116         if O != 0:
--> 117             raise ValueError('O in MOPT integer should be 0, wrong format?')
    118         P, rest = divmod(rest, 10)  # data type code e.g miDOUBLE (see above)
    119         T = rest  # matrix type code e.g., mxFULL_CLASS (see above)

ValueError: O in MOPT integer should be 0, wrong format?

Regards

On Tue, Jan 4, 2022 at 10:58 PM Francesco Potortì <Potorti@isti.cnr.it> wrote:
>Wish you all a very happy new year.

Same to you and everyone else!

>I have one .mat file which is in V4.
>
>I can load this file in Octave using
>load TRACES1.mat
>
>I want to save this file V7 format.

Try "help save" at the Octave prompt

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Attachment: TRACES1.mat
Description: Binary data


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