How to fill in a zeroes matrix using data from a separate array?

Prashant Kumar answered . 2025-03-27 13:08:53

To fill a zero matrix with data from a separate array in MATLAB, you can use indexing. Here’s a clear guide on how to achieve this:

 Example Code:

% Initialize the zero matrix
zeroMatrix = zeros(5, 5);

% Data array
dataArray = [1, 2, 3, 4, 5];

% Positions to fill (linear indexing example)
positions = [1, 7, 13, 19, 25];

% Fill the zero matrix with data
zeroMatrix(positions) = dataArray;

% Display the result
disp(zeroMatrix);

 Explanation:
- Initialization: A 5x5 zero matrix is created.
- Data Array: The array containing the data to be inserted is defined.
- Positions: The positions in the zero matrix where data should be inserted are specified.
- Filling the Matrix: The data from the `dataArray` is assigned to the specified positions in the zero matrix.

Using this method, you can efficiently fill a zero matrix with data from a separate array based on your desired positions. 

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