MATLAB: Finding a specific rows

identification

I have this Matrix:
m = [0	0	0	0	0	0	0	0
    0	3.410	0	0	0	0	0	0
    10.83	11.87	7.240	3.470	1.610	1.610	0	0
    20.99	18.23	17.72	6.010	3.790	3.790	1.100	0
    25.26	20.40	22.70	7.590	6.990	6.990	1.550	0
    22.86	19.13	24.48	8.280	9.240	9.240	2.180	0
    14.92	15.73	23.19	8.280	11.61	11.61	2.690	0
    10.83	11.87	22.18	8.280	12.79	12.79	3.010	0
    9.050	10.69	22.70	8.490	14.91	14.91	3.500	0
    9.840	11.19	23.75	8.490	16.02	16.02	3.790	0
    9.840	11.54	24.48	8.840	16.43	16.43	4.100	0
    8.070	10.20	25.18	9.180	17.73	17.73	4.750	0
    5.230	8.350	24.48	9.180	19.28	19.28	5.800	0
    3.680	6.630	25.18	8.840	22.49	22.49	6.980	2.190
    0	3.190	22.70	7.840	28.06	28.06	8.280	3.320
    0	0	13.03	6.010	34.68	34.68	10.88	5
    0	0	0	3.470	32.87	32.87	13.86	5.300
    0	0	0	0	15.14	15.14	12.27	0
    0	0	0	0	1.240	1.240	1.450	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    0	0	0	0	0	0	0	0
    40.53	25	0	0	0	0	0	0]
% * Edited by Adam Danz to allow for copy-pasting into command window
I want to find the first row where all the columns have a value below 10. How to do this? I have made an if statement, but this seems to specific and I was wondering if there would be another way.

Best Answer

This does not require a for-loop. In fact, the last line is the solution. The first few lines just creates an example matrix where rows 3 and 13 are all below 10. 
% Create a 15x7 matrix of random integers 1:20
m = randi(20,15,7); 
% Rows 3 and 13 are all below 10 (maybe others, too)
m([3,13],:) = m([3,13],:)-11; 
%find the first row where all the columns have a value below 10.
rowNumber = find(all(m < 10,2),1);
% find the first row AFTER ROW N where all columns are < 10
N = 3;  %start at row N
rowNumber = find(all(m(N:end,:) < 10,2),1)+N-1;
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