Assigments has more non-singleton the dimensions than non-singleton subscript

I am working filling a matrix and I have the prior error. See the following:

function [MDA_matrix] = MDA_calc_V3(dmat,E_abs_matrix,timeofmeasu,sum_ROI,BACKGTime,f)
    box_loc = 0;

      num_x = size(dmat,1);
      num_y = size(dmat,2);
      tot_box = size(dmat,3);

      MDA_matrix = zeros(num_x,num_y,tot_box);

      for i=1:tot_box
        for j=1:num_x
          for k=1:num_y
      %for i=1:x_num
       %  for j=1:y_num
             %%INTERMEDIATE CALCULATIONS
             box_loc=box_loc+1;
             sqrt_sum_ROI=sqrt(sum_ROI(box_loc));
             sqrt_BACKGTime=sqrt(BACKGTime);
             rate = sum_ROI(box_loc)/BACKGTime;
             pm_rate= sqrt_sum_ROI/BACKGTime;
             expected_value= rate*timeofmeasu;
             pm_expected_value=pm_rate*timeofmeasu;
             N_d=(4.65*sqrt(expected_value))+2.71;
             %%MDA CALCULATION
             E_abs = E_abs_matrix(j,k,i);
         %MDA_matrix(j,k,i) = N_d /(f * E_abs_matrix(j,k,i) * timeofmeasu);
         MDA_matrix(j,k,i) = N_d /(f * E_abs * timeofmeasu);
         end
        end
      end
  end

MDA_matrix is a 5x6x30 as E_abs_matrix, and dmat.

Any help.... thanks

Assignment has more non-singleton rhs dimensions than non-singleton
subscripts

Error in MDA_calc_V3 (line 27)
       MDA_matrix(j,k,i) = N_d /(f * E_abs * timeofmeasu);

Error in MDA_calc_All_cells_V2 (line 164)
[MDA_matrix] = MDA_calc_V3(dmat,E_abs_matrix,timeofmeasu,sum_ROI,BACKGTime,f);

Any help.... thanks

NO CLUE!!!

Answer 1

[Walter Roberson]

Please tell is size() of each of the input variables.

And at the command prompt give the command

dbstop if error

and then run your program. When it stops, tell it to display size() of N_d, F, and timeofmeasu

The error is telling you that you are trying to assign a vector of values into a single location.