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Browsing / accessing results in Matlab?

#1120  Permalink Top

Browsing / accessing results in Matlab?

May-06-11 15:35:34

Hi all,

I wonder if there is some matlab code to browse the results (saved as mat file) in matlab? Where can I find information on how to extract simulation results from mat files?

Thanks
Alex

#1121  Permalink Top

Re: Browsing / accessing results in Matlab?

May-06-11 15:50:43

Using the MATLAB clone GNU Octave:

Code:


octave:1> load A_res.mat

octave:2> who

Variables in the current scope:



Aclass       dataInfo     data_2       name

ans          data_1       description

Aclass describes the format (if it is transposed matrices or not)

Code:

octave:3> Aclass

Aclass =



Atrajectory

1.1        

           

binTrans

Code:

octave:6> dataInfo

dataInfo =



   2   2   2

   1   2  -2

   0   0   0

  -1  -1  -1

The dataInfo is Nx4. Each variable has 4 fields.
1) Part of matrix data_N where N is the value of the variable
2) Index in this matrix (negative indices means it is a negative alias of that index)
3) and 4) are unused by OpenModelica. Handles interpolation and stuff in Dymola I believe

Code:

octave:9> name'

ans =



time

x

y

In OpenModelica we transpose this matrix for some reason current/smile The order of the names (and description) matrices are the same as dataInfo.

So to get all y-values:

Code:

-data_2(2,:)

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