how can i choose a certain row from simulation?

i make a simulation it's results is a matrix so, if the run =500, i'll have 500 matrix my quistion is..........i want to choose certain row from those martrces the row is .....[xxx 1 0 0 0]...note xxx means the existing number it's different from matrix to another

[David]

Perhaps you could provide some of your code or data?

[arkedia]

matrix one [18 1 0 0 0;15 1 0 1 0;20 0 0 0 1]
matrix two [30 1 0 0 0;20 1 0 1 0;50 0 1 0 0]
matrix three [10 1 0 1 0;20 1 0 0 0;40 0 0 1 0]

...the new matrix i want consists of [18 1 0 0 0;30 1 0 0 0;20 1 0 0 0]

[Jan]

I do not see the relation between the three input arrays and the output. Please explain the procedure with all required details. Do not use explanations as "matrix one", but the valid Matlab syntax like "A= [...]". It is unclear in which format you store the 500 matrices, but this detail matters.

Answer 1

[José-Luis]

your_mat = [18 1 0 0 0;...
    15 1 0 1 0;...
    20 0 0 0 1];

idxFun = @(x) find(ismember(x(:,2:end),[1 0 0 0],'rows'));

your_row = your_mat(idxFun(your_mat),:);

Then you can concatenate:

your_result = [your_row1;your_row2;your_row3];