Saving large struct files

I am trying to save a struct file previously of size 84 MB. After modifying some fields, when I use the save function i.e. save('Blocks','-v7.3'), it creates a new file with size 17 GB. Any ideas to work around this?

[James Tursa]

We would need to see more details about this struct and how you build/modify it. E.g., maybe the struct has a lot of shared data variable fields that get duplicated when saved.

[Jan]

The command save('Blocks','-v7.3') stores all variables of the workspace to the file "Block.mat". Do you mean:

save('Blocks.mat', '-v7.3', 'Blocks', '-struct')

[Stephen23]

save('Blocks.mat', '-v7.3', '-struct','Blocks')

[Jan]

[MOVED FROM FLAG]

Eugene Ben-Awuah wrote:

The file I am trying to save is already a struct file. I get this error message: "The argument to -STRUCT must be the name of a scalar structure variable"

@Eugene: Please use flags only to inform the admins or editors about contents, which is not appropriate for the forum, e.g. due to rudeness. Thanks.

[Jan]

@Eugene: Please do not let us guess all details. I do not know, what a "struct file" is and what the contents of the variable Blocks is. Currently you do not provide any details beside the sizes of the MAT file.