MATLAB: Count rows in matrix

count rowsmakermatrix

hey, i want to know is there a way to get how many rows are there in a given matrix. like for example when we say 'length(A)' it can give number of columns in a matrix(A), likewise can we know about number of rows ?
thank you.

Best Answer

size(A,1)
The following documentation provides more information on 'size' function:
https://www.mathworks.com/help/matlab/ref/size.html
Starting in R2020b, you can also use "height" and "width" function to count rows and columns of a matrix respectively.
For example:
A=rand(3,2); %Defining a matrix;
count_rows=height(A); %Computes number of rows in A
count_columns=width(A); %Computes number of columns in A
For more information on "height" and "width" functions, please refer to the following documentation:
https://www.mathworks.com/help/releases/R2020b/matlab/ref/height.html
https://www.mathworks.com/help/releases/R2020b/matlab/ref/width.html
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