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Summary

The number of rows in a matrix can be determined using the size function.
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The output of the size function is a vector containing the number of rows and columns.
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Additionally, the sum() function can be used to count the number of specific values in a matrix
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, or the nnz() function can be used, which is more efficient than converting logicals to numeric.
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According to

Summary
MATLAB Answers provides a comprehensive guide on how to count the row and column of a matrix in a matrix. The answer is provided by a cyclist, Muhammad Nasiri, and Ali Faragallah, and the solution is [m,n] = size(A). The answer also provides additional information on how to find out the size of a matrix if one is not sure.

how to count row and column of a matrix - MATLAB Answers - MathWorks
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Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool. Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.…

Number of table rows - MATLAB height - MathWorks
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Summary
MATLAB Answers provides a solution to count the number of specific values in a matrix. The solution involves using the sum() function, which can be used to count the number of specific values in a matrix, or using the nnz() function, which is more efficient than converting logicals to numeric. Additionally, the answer provides a link to a MATLAB tutorial on how to use the sum() function to count the number of specific values in a matrix.

Count number of specific values in matrix - MATLAB Answers - MathWorks
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I am am trying to determine the number of rows in a matrix using matlab , I usually use >> [ rows ,cols]=size (X); >> rows but this requires me to do the operation…

Count rows in Matlab | Physics Forums
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