Find range between two array's indexes
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Hello,
I have two arrays of different sizes and I Would like to find certain range between them, where the start index is from one array and ends with another array. For example:
A = [4192 23330 23342 29974 49089 49093 49096 55753 57035 57039]
B = [22780 48556 56522]
The desired output would be
C = [4192 22780; 29974 48556 ; 49096 56522]
Note that A and B can change in size, but array B is always the end point value.
Thanks, Max
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Stephen23
2016년 7월 20일
편집: Stephen23
2016년 7월 20일
Assuming that the rule really should pick the closest values from A that a re less than the values in B:
>> A = [4192 23330 23342 29974 49089 49093 49096 55753 57035 57039];
>> B = [22780 48556 56522];
>>
>> X = A(any(diff(bsxfun(@lt,A(:),B(:).')),2));
>> C = [X(:),B(:)]
C =
4192 22780
29974 48556
55753 56522
댓글 수: 2
Stephen23
2016년 7월 20일
@Max Bernstein: this error happens because the vector B you are using is a column vector, whereas the vector B you gave in your example is a row vector. I fixed my code to work with both of these.
추가 답변 (1개)
Thorsten
2016년 7월 20일
If you use that highest value that is still smaller than the corresponding B, you can write:
C = [A(arrayfun(@(i) find(A < B(i), 1, 'last'), 1:numel(B))); B]'
But this differs from your desired output. So what is the rule according to which you pick the values form A?
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