Why is this if statement not working?

1 view (last 30 days)
Jay
Jay on 24 Oct 2016
Commented: Jay on 24 Oct 2016
for i=1:10
if Li_m_full10(i,1)*10^6 ~= Ri_m_full10(i,1)*10^6
% error
error_1 = sprintf( 'Difference In X Coordinate %d Between Left and Right Model Space', i );
disp(error_1)
elseif Li_m_full10(i,3)*10^6 ~= Ri_m_full10(i,3)*10^6
% error
error_2 = sprintf( 'Difference In Z Coordinate %d Between Left and Right Model Space', i );
disp(error_2)
else
end
end
Where
Li_m_full10 =
[15.9811212241544, 20.7151917170739, -41.3158787392910;
-6.21811036412999, 13.5650723523276, -40.8359583400025;
14.7702533518152, -9.41689361653716, -36.6475648350934;
16.7856234567904, 5.44965770745775, -38.5652761874981;
-4.49546718159992, -10.4977549136369, -37.1977822200610;
-5.58443840827459, 23.1514495438229, -42.0048342504297;
10.1458674678489, -3.29370264049584, -37.9925268240093;
10.8958379341580, 4.99817118096055, -38.7136591008241;
6.96457186489267, 16.0885054037253, -40.6268086865610;
-2.21974302416626, 10.6246429546594, -40.3661741974887]
and
Ri_m_full10 =
[15.9811212241544, 20.6926665759825, -41.3158787392910;
-6.21811036412999, 13.5219038409356, -40.8359583400025;
14.7702533518152, -9.43334232312408, -36.6475648350934;
16.7856234567904, 5.48342269300826, -38.5652761874981;
-4.49546718159991, -10.4862449523353, -37.1977822200610;
-5.58443840827459, 23.1872988430950, -42.0048342504298;
10.1458674678489, -3.27066013992277, -37.9925268240093;
10.8958379341580, 5.01851352020439, -38.7136591008241;
6.96457186489267, 16.0681334029748, -40.6268086865610;
-2.21974302416626, 10.5691345641832 -40.3661741974887]
Errors are printed for all values.
The '~=' in the code doesn't seem to be working for each element i.
  1 Comment
KSSV
KSSV on 24 Oct 2016
You may consider difference of the columns you want to find whether the numbers are different or not.
d1 = Li_m_full10(:,1)-Ri_m_full10(:,1) ;
d2 = Li_m_full10(:,3)-Ri_m_full10(:,3) ;
In the above id d1 or d2 has zeros, then the numbers are equal, if not they are different.

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 24 Oct 2016

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!