how to find the equality of 2 numbers?
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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 Kommentare
Image Analyst
am 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
am 10 Sep. 2012
Please retag this question; see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags
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Andrei Bobrov
am 10 Sep. 2012
AE = [a e]; %The initial array
out = AE(abs(diff(AE,1,2)) < eps(100),:);
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Adrian Dronca
am 10 Sep. 2012
I think you should consider using isequal() . The function works with single, double, string.
0 Kommentare
Image Analyst
am 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
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