Valmian 0 Junior Poster in Training

ok.. here I am with a double pointer to a 2D array and I am copying the data from another struct in to this 2d struct array.
It gives me an illegal opperand error.

 data.trace = (SQwPOL**)calloc(polar.width,sizeof (SQwPOL*));
 for (int i=0; i<polar.width; i++)
  data.trace[i]= (SQwPOL*)calloc(polar.width,sizeof (SQwPOL));
  for (int a=0; a<data.rows; a++)

   data.trace[i][a][i].values[a]; //says it is an illeal opperand here
   printf ("\nThe number copy #%d = %d, original #%d = %d",i,data.trace[i][a],i,[i].values[a]);
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