Error `Index exceeds the number of array elements` while loading .mat file

I tried to encapsulate load function. However when I ran test_load_data.m, an error occurred:

Index exceeds the number of array elements. Index must not exceed 1.

Error in load_my_data (line 97)

S = load(path_file);

^^^^^^^^^^^^^^^

Error in

test_load_data (line 36)

load_my_data(pathFileRelative);

A minimal working example is attached for reproduction.

If I comment out

load_my_data(pathFileRelative);

and add

load(pathFileRelative);

in test_load_data.m,

it works well.

Answer 1

[Matt J]

You have created a variable named 'load' in this line,

load = 0;               % 轴承的载荷（单位：马力）（可能是0、1、2、3马力）

and later also in,

load = str2double(tokens{1}{1});

This hides the load() function from Matlab within the workspace.

[Matt J]

Also, load_my_data references a variable called file_name which is never defined anywhere... Should that be path_file?

[Kaiser]

Thank you sir! I shouldn't define load as a variable to override the builtin function. After I changed it to payload, the error is gone.

And you are also right about file_name, it should be path_file.

[Matt J]

I'm glad it got sorted out, but please Accept-click the answer to indicate that the issue has been solved.