how to find the equality of 2 numbers?
1 view (last 30 days)
Show older comments
a e
1 1
1 2
3 2
3 2
The above is my input table. Check 'a' for the value '1'. The corresponding 'e' value differs. So, we should not consider it. Check 'a' the value of '3'. The corresponding 'e' values are same. How to develop code for this?
5 Comments
Image Analyst
on 10 Sep 2012
Then see my answer. Also, what does "class(a)" show when you issue that command? If you want to make absolutely sure a and e are integers, wrap them in an int32() when you create them.
Walter Roberson
on 10 Sep 2012
Please retag this question; see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags
Accepted Answer
Andrei Bobrov
on 10 Sep 2012
AE = [a e]; %The initial array
out = AE(abs(diff(AE,1,2)) < eps(100),:);
More Answers (3)
Adrian Dronca
on 10 Sep 2012
I think you should consider using isequal() . The function works with single, double, string.
0 Comments
Image Analyst
on 10 Sep 2012
If they're integers, use ==, like
if a == e
if they're floating point, you need to check against a tolerance:
if abs(a-e) < 0.0001
See the FAQ for more info: http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F
0 Comments
See Also
Categories
Find more on Logical in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!