MATLAB: Matlab Grade book help –drop one lowest score and assigning letter grade

Question

Hi I am building a gradebook that allows me to drop the lowest assignment score and only takes 10 assignment scores and adds all the test scores. I need to assign a letter grade to each student.

Here is some data

I am stuck on dropping the lowest score and assigning students to a grade in my function. if there is a better way of doing it without a function… please tell me…

function [sumarr] = grades(structure, field)
% FUNCTION GRADES accepts any cell array value and assigns a letter
% all data entered must be transposed from rows to colums please remember
% to transpose data example transposedata = data' ---> data = [FILE that
% was imported]
%DEFINE VARIABLES
% ii -- index variable 
ii =0 ;
array =[];
 for ii = 1:length(structure) 
     %build an array 
     array = [array structure(ii).(field)];
 end 
    % if one grade is less than 2, drop the score. 
      % assign Letter grades 
      %sum of all grades 
      sumarr = sum(array); 
  end

Answer 1

Can you try just subtracting the min, something like

array = [structure.(field)]; % All items - no loop over ii needed.
arraySum = sum(array) - min(array);