How using a loop to add up the same numbers in a matrix and store the numbers in a new matrix

m=[1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9]

for x=1:length(m)

How to compare the data in the matrix and get the same values and add them together then store it in a new matrix.

[the cyclist]

Do you mean you want to find repeated numbers, and add them?

For

m = [1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9]

would the output be

output = [2,4,6,8,10,12,14,16,18]

?

Can you give another example or two? Try to make the example a representative one.

[KSSV]

REad about unique

Answer 1

[Chandra]

Hi,

Here the code is shown such that the values stored are non repeatednon-repeated and addition of repeated values together

Please find the code below

m=[1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9];
%m = [1 2 4 56 3 35 6 1 2 3 4 2];
m1 = m;
b =0;
for x=1:length(m1)-1
    for j = x+1:length(m1)
        if j>length(m1)
            break
        end

        if m1(x)==m1(j)

            b = b+m(x);
            m1(j) = '';
            if j==x+1
               j= j-1;
            end
        end
    end
    m2(x) = b;
    if x<=length(m1)-1
       b = m1(x+1);
    end

end
m2 = m2(1:length(m1));
m2 %final output values are stored in m2 

Refer to the following documentation for unique values that are not repeated:

https://www.mathworks.com/help/matlab/ref/double.unique.html