matlab/octaveでmatファイルの内容を確認する

whos('-file', 'ファイル名')

octave-3.4.0:15> whos('-file','trade_grav_est_eiu.mat')
Variables in the file trade_grav_est_eiu.mat:

  Attr Name            Size                     Bytes  Class
  ==== ====            ====                     =====  =====
       b              71x71                     40328  double
       distance       71x71                     40328  double
       tradeshare     71x71                     40328  double

Total is 15123 elements using 120984 bytes


http://www.mathworks.com/help/matlab/ref/save.html