Error: "Unable to read some of the variables due to unknown MAT-file error."

Question

Will Q 2019-5-21

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/463316-error-unable-to-read-some-of-the-variables-due-to-unknown-mat-file-error

评论： Walter Roberson 2019-5-21

Hello, I have a 3.1 MB .mat file that contains activations from a hierarchical model, after reading a set of 504 images in double format. When I try to read the file in MATLAB, I receive the following error:

"Warning: Unable to read some of the variables due to unknown MAT-file error.

> In matfinfo (line 9)

In finfo (line 118)

In uiimport/gatherFilePreviewData (line 414)

In uiimport (line 244)

Error using load

Number of columns on line 2 of ASCII file

/Users/hsnsplazaresearch/Analysis/hmaxMatlab/output/exampleActivations.mat must be the same as previous lines.

Error in uiimport/runImportdata (line 465)

datastruct = load('-ascii', fileAbsolutePath);

Error in uiimport/gatherFilePreviewData (line 433)

[datastruct, textDelimiter, headerLines]= runImportdata(fileAbsolutePath, type);

Error in uiimport (line 244)

gatherFilePreviewData(fileAbsolutePath);"

I am highly confused, because the data is not ASCII. When I open in a text edtior (Atom), it appears like so:

"^[w<��H��UJT��r*IVQ��_TdDd�JJ!

�d�yp�=�=�풒�}޿�?�g|��ݓm�{�?��#��x7,^�"

The function was adapted from the HMAX model for machine vision, and the tarball can be found here: https://maxlab.neuro.georgetown.edu/hmax.html#code

The version is 2019a. Thank you so much for your time.

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Will Q 2019-5-21

编辑：Will Q 2019-5-21

I have posted the file (exampleActivations.mat) here. I also posted a second .mat file (ExampleActivations2.mat) created using the exact same script (but using a smaller data set with different images), that looks like what my file should look like.

I think it is possible that the file gets corrupted near the end of the script, but am not certain. Thank you for taking the time to look at my issue!

Adam Danz 2019-5-21

编辑：Adam Danz 2019-5-21

在 MATLAB Online 中打开

When I drag-drop the first mat file into my workspace,

Error using load
Unable to read MAT-file C:\Users\name\Documents\MATLAB\exampleActivations.mat. 
File might be corrupt. 

When I load that file with the import tool

Error using load
Number of columns on line 2 of ASCII file C:\Users\name\Documents\MATLAB\exampleActivations.mat 
must be the same as previous lines.
Error in uiimport/runImportdata (line 465)
                    datastruct = load('-ascii', fileAbsolutePath);
Error in uiimport/gatherFilePreviewData (line 433)
        [datastruct, textDelimiter, headerLines]= runImportdata(fileAbsolutePath, type);
Error in uiimport (line 244)
    gatherFilePreviewData(fileAbsolutePath); 