Error:Conversion to cell from double is not possible.

Dear Programmers

I have a below written code in which I want to run a logical algorithm based on parameters HP and SS with if-else. YM is another parameter which will store the results of the logical statements. HP and SS are 2 cell-array columns which are derived from stress array. YM is another cell-array columns derived a matrix E. "for" loop is executed from row 1 to last row of the stress array so that the values of HP and SS can be evaluated in each row to give a desired value of YM in the YM cell-array following the logical statements.

While executing the code I am receiving the error message: Conversion to cell from double is not possible.

Please help !

N.B: I have attached the txt file for reference.

fID = fopen('no_header.txt','r');
stress=textscan(fID,'%n %n %n','headerlines',7,'Delimiter','');
fclose(fID);
 E = zeros(size(stress{1,1}));
 YM= num2cell(E);
 HP= num2cell(stress{1,2});
 SS= num2cell(stress{1,3});

for i= 1:size(stress{1,1},1)

if HP{i}==0 & SS{i}==0
        YM(i,1) =1;
elseif HP{i} > 0.15 & SS{i}==0
       YM(i,1) = 2;
elseif HP{i} > -0.15 & SS{i} > 5
       YM(i,1) = 2;
elseif HP{i} > -0.15 & SS{i} < -5
       YM(i,1) = 2;
 elseif HP{i} < -0.15
       if SS{i} < -15 | SS{i} > 15 
            YM(i,1) = 10;
       else 
           YM(i,1) = 1000; 
end
elseif HP{i} > -0.15 & HP{i} < 0.15 & SS{i} > -5 & SS{i} < 5
           YM(i,1) = 6000;
else
        warning('CURRENT VALUES OF HP AND SS NOT COVERED BY THIS SIMULATION')
        
    end
  end	

Answer 1

[Divya Tejaswini]

Since YM is cell, you need use curly braces { } for indexing to access the contents of cells. YM(i,1) in lines 10, 12, .. 24 has to be replaced to YM{i,1}

[RAJ]

Thanks Divya .. It was a silly mistake on my part..Thanks a lot