Try to save structural variable, but not everything is saved

Hi all,

I ran my code for a few hours and now I get some results. I'd like to save these data to a .mat file such that I can open and edit it later. My data looks like this:

>> canti
canti = 
  canbeam with properties:

             cons: [1x1 struct]
              fce: [1x1 struct]
              err: [1x1 struct]
      countGreedy: 30
       refinement: [1x1 struct]
           pmExpo: [1x1 struct]
             resp: [1x1 struct]
        indicator: [1x1 struct]
             sti1: [1x1 struct]
             sti2: [1x1 struct]
             stis: [1x1 struct]
            asemb: [1x1 struct]
              str: [1x1 struct]
             node: [1x1 struct]
             elem: [250x4 double]
          domLeng: [1x1 struct]
          domBond: [1x1 struct]
           pmComb: []
            pmVal: [1x1 struct]
            pmLoc: [1x1 struct]
           pmGrid: [1x1 struct]
             time: [1x1 struct]
              phi: [1x1 struct]
             coef: []
             draw: []
              imp: [1x1 struct]
              qoi: [1x1 struct]
              mas: [1x1 struct]
              dam: [1x1 struct]
              sti: [1x1 struct]
              acc: [1x1 struct]
              vel: [1x1 struct]
              dis: [1x1 struct]
               no: [1x1 struct]

The entire canbeam should be around half a gigabyte. I tried to save like this:

>> save('l9h2.mat', 'a')

However, the saved .mat file is only 210 bytes, obviously not saving everything. How can I save all data in canbeam to a file? What is the best way to save data for future use?

Thanks!

EDIT: what I did was actually

>> save('l9h2.mat', 'canti')

My bad!

[Stephen23]

>> canti
canti = 
  canbeam with properties:

Is canbeam an instance of a MATLAB class? Or is this a third-party class?

[Xh Du]

Hi, it's a class defined by myself, so I guess it's third party?

canti is the handle itself, so only 112 bytes, but few days ago I actually saved the entire "canti" including it's structural contents by using

>> save('l9h2.mat', 'canti')

Answer 1

[Walter Roberson]

You are asking to save only the variable 'a', not the variable 'canti'

[Xh Du]

Sorry Walter, post edited, I did try to save 'canti'.

[Walter Roberson]

Hmmm, I guess only a handle got saved, without the content that the handle was referring to. I do not know what to do about that.

[Xh Du]

It's weird, the first time I saved 'canti', it actually saved everything (the saved .mat file was 410.4 MB), if I load it, it looks like this:

>> varload = load('l9h2_t100_f6_dom17*17_plot2*5_init[1_5]_ref_001_qoi5_10_proposed.mat');
>> varload
varload = 
    canti: [1x1 canbeam]
>> varload.canti
ans = 
  canbeam with properties:

             cons: [1x1 struct]
              fce: [1x1 struct]
              err: [1x1 struct]
      countGreedy: 10
       refinement: [1x1 struct]
           pmExpo: [1x1 struct]
             resp: [1x1 struct]
        indicator: [1x1 struct]
             sti1: [1x1 struct]
             sti2: [1x1 struct]
             stis: [1x1 struct]
            asemb: [1x1 struct]
              str: [1x1 struct]
             node: [1x1 struct]
             elem: [250x4 double]
          domLeng: [1x1 struct]
        domBond: [1x1 struct]
         pmComb: []
          pmVal: [1x1 struct]
          pmLoc: [1x1 struct]
         pmGrid: [1x1 struct]
           time: [1x1 struct]
            phi: [1x1 struct]
           coef: []
           draw: []
            imp: [1x1 struct]
            qoi: [1x1 struct]
            mas: [1x1 struct]
            dam: [1x1 struct]
            sti: [1x1 struct]
            acc: [1x1 struct]
            vel: [1x1 struct]
            dis: [1x1 struct]
             no: [1x1 struct]