Comparing cells without loops

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Nik Rocky 2020-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/556420-comparing-cells-without-loops

评论： dpb 2020-6-29

Hello,

I have one 1x5 cell-array G with 3000 x 1 doubles and one R 1x20 cell array with var x 2. The first column marked bold is time. Both of cell array has a same time base t. G has all t-values from 1 to 3000. R has different pieces and are not always here.

Cell looks:

G = (I skip {})

1 12 44 78 45

2 14 58 45 22

3 45 78 79 13

4 2 45 45 45

5 14 56 45 78

.....................

3000 45 78 45 12

%%%%%%%%%%%

R{1} =

2 47

3 78

%%%%%%%%%%%

R{2} =

3 45

4 47

5 66

%%%%%%%%%%%

R{n} =

12 45

13 45

14 40

%%%%%%%%%%%

Now I want to compare data between cells. I put it in double loop for G and double loop R. indexes are looking for right time point and set a values to array G_save or R_Save.

Pseudo code looks:

%%%%%%%%%%%%%%%%%%%%%%%%%%% G
for time_cnt from zero to 3000 %%%% from 1 to 3000
    for cell number %every cell
        for any row 
            if time_cnt equal row value in first column
                G_save(cell_number_cnt) = save four values
            else
                G_save(cell_number_cnt) = save zero
        end
     end
%%%%%%%%%%%%%%%%%%%%%%%%%%%% R
for cell number 
   for any row
        if time_cnt equals row value in first column
            R_save(cell_numer_cnt2) = value
        else
            R_save(cell_numer_cnt2) = 0
        end 
 
   end
   ...... calkulation
end