[Scilab-users] How to assign column data to mlist?

[Samuel Gougeon]

Hello Rafael,

Le 13/07/2015 22:18, Rafael Guera a écrit :
> .../...
>
> data1=[11:20]';
>
> data2=[21:30]';
>
> M= mlist(['V', 'field1', 'field2']);
>
> M.field1= data1;
>
> M.field2= data2;
>
> disp(M)
>
> printf("\n\n");
>
> M.field1(2)= %e; /// individual element assignment/
>
> M.field2(3:6)= %pi; /// sub-array assignment/
>
> printf("%10.3f %10.3f\n",M.field1, M.field2);
>
> Also could someone explain why command "M(3)" produces errors and 
> overloading is required? (using Scilab 5.5.2 in Win7)
>
.
M being a M-list, M(3) should extract the third component of M table(s), 
so data1(3) and data2(3).
But you have to specify how you wish to display it:
  * like [data1(3) data2(3) ] ?
  * like [data1(3) ; data2(3) ] ? Then beware that the format of 
M(3:4)... must be managed.
  * like list(data1(3), data2(3)) ? Then what would return M(3:4)?
  * like a struct s.data1 = data1(3) ; s.data2 = data2(3) ?
etc.
The same questions must be answered for insertion and extraction:
M(3) = [ %pi %e]  // should distribute and assign %pi data1(3) and %e to 
data2(3)
When you insert content, you must check that .data1 and .data2 keep the 
same size..
M(3:5) could return either a structure array, or a cell array, or a 
matrix... The developper must choose according to the purpose that is 
followed...

HTH
Samuel



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