MATLAB: Error using save can’t write file

Question

Hi,

I have got this really strange error in matlab. When I try to run the command

save(fullfile('filepath','filename'),'var','-v7');

I get the error message,

error using save can't write file

but when I try

save(fullfile('filepath','filename'),'var','-v7.3');

everything works fine. The the variable takes some space on the workspace, 165MB, but the I would guess that the size should not be an issue here. Does anyone know why it does not work to save in "v7"?

For the one that want to confirm the size of the variable, I will add the "whos" information,

Name      Size                Bytes  Class     Attributes
myName    1x1             173081921  struct

BR/ Patrik

EDIT

The variable I try to save is a struct with plenty of fields. I have also tried to save a 3 dimensional matrix of size 800 mb which is larger, but goes through easily.

Answer 1

Some versions of the save function really don't react well to structures.