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save values of matrix in indexes of another matrix

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hello, i want to
nimg=1;
for ii=1:imglen
for iii=1:c-4+1
hashTable(Idximgseq(ii,iii)+1,nimg)={[ii,iii]};
nimg=nimg+1;
end
end
save matrix of values in another matrix,such that each value in the first matrix saved in the same value of index in the second matix,but i have a problem that the counter increses in all times,i want to increse the counter in saparete index,such that:
first matrix(1,1)=15 saved in the index 15 colomn 1 in the second matrix,first matix(1,2)=15 saved in the index 15 colomn 2 in the second matrix,first matrix(1,3)=13 saved in the index 13 colomn 1 in the second matrix, but my problem that first matrix(1,3)=13 saved in the index 13 colomn 3 in the second matrix not in the index 13 colomn 1??

Answers (1)

Suraj Kumar
Suraj Kumar on 4 Oct 2024
Hi Hadeel,
To save values from one matrix into another matrix using specific indices, please follow the steps outlined below:
1. Initialize the required variables and create a ‘counters’ array to track the next available column for each index, ensuring independent management of values.
% Initialize counters for each index
counters = zeros(maxIndex, 1);
2. Iterate over the input matrix to determine indices and store pairs in hashTable. Adjust indices for 1-based indexing by incrementing the respective counter, then place the pair in the correct column.
% Populate the hashTable
for ii = 1:imglen
for iii = 1:c-4+1
index = Idximgseq(ii, iii) + 1;
counters(index) = counters(index) + 1;
hashTable{index, counters(index)} = [ii, iii];
end
end
Hope this helps!

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