GRID:INDICES

XYOUT

 Syntax: GRID\INDICES\XYOUT x y z m xout yout

 If output vectors, xout and yout, are desired, you must use the \XYOUT
 qualifier. The coordinates of output matrix element m[i,j] will be
 (xout[j],yout[i]), where xout contains the x-coordinates of each column
 and yout contains the y-coordinates of each row. If the output matrix has
 nc columns and nr rows, then xout = [1:nc], yout = [1:nr].

example

 Suppose: X = [  1;  4;  1;  3;  5 ]
          Y = [  2;  1;  6;  4;  6 ]
          Z = [ 10; 15; 20; 25; 30 ]
 After the command:    GRID\INDICES X Y Z M
             |  0,  0,  0, 15,  0 |
             | 10,  0,  0,  0,  0 |
         M = |  0,  0,  0,  0,  0 |
             |  0,  0, 25,  0,  0 |
             |  0,  0,  0,  0,  0 |
             | 20,  0,  0,  0, 30 |