.mat matrix use in folder

I have saved a fixed matrix with a name in my current working Matlab folder on Mac. Now it appears as 'G.... .mat' there when I click on "open" in that folder; together with all my function m-files in there. it takes the identical 368 bytes as in the Mac finder.

How can I work with that saved .mat file inside the local m-files in this folder ?

I tried the 'load G... .mat' command but that does not work; I have tried to run some of my codes with 'G... .mat' in place of my general A matrix input. Does not work work either.

I then tried to see the contents of this .mat file by cicking on it in the local Matlab finder window: This shows nothing.

I have read and tried out all what is advised here and on the general internet. Nothing works for me. Why, oh why did I try to save and multiply use that 'G... .mat' matrix, rather than typing it in by hand everytime I want to work on it again ? Why, oh why?

[Walter Roberson]

368 bytes for a .mat file is probably a .mat that has almost nothing in it.

For testing purposes, try using

whos -file "Fully qualified path to file goes here.mat"

[Frank Uhlig]

Hdere is what happens with your command:

>> whos -file "Godunov.mat"

Error using whos

Could not find "Godunov.mat".

>> ls

FU_ATMmfiles.zip runVICMatrRmmev.m

Godunov.mat

and so forth, all in that same subfolder of m-files

[Walter Roberson]

Try

dinfo = dir('*.mat');

filenames = {dinfo.name};

nfiles = length(filenames);

for K = 1 : nfiles

thisfile = filenames{K};

fprintf('File name: |%s|\nCharacter codes: %s\n', thisfile, mat2str(double(thisfile)));

whos('-file', thisfile);

end

and see if anything shows up. If it does, then carefully compare the character codes for the name that looks like Godunov.mat to the expected character codes,

double('Godunov.mat')

ans = 1×11

71 111 100 117 110 111 118 46 109 97 116

Check for entries greater than 126, which can indicate unusual characters.

[Cris LaPierre]

Consider sharing the code you used to create your mat file.

[Walter Roberson]

whos -file "Godunov.mat"

You needed either

whos -file Godunov.mat

or

whos -file 'Godunov.mat'

or

whos("-file", "Godunov.mat")

or

whos('-file', 'Godunov.mat')

When you use command/function equivalence, the parameters are automatically parsed as (single-) quoted character vectors, but the parser knows to ignore leading and trailing single-quotes. The parser does not know to ignore leading and trailing double-quotes so when you specify them, they become part of the literal file name.