Can I perform subtraction using cell arrays?

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Yao
Yao 2012-10-13
Hi all,
I have 2 sets of numbers which i would like to subtract them and compare their values and perform a counter loop.
Is there any function I can make use of to do that? Thanks
for example I have these 2 sets of numbers which I need to subtract each value and compare:
filteredAreaSample =
3594 3627 3626 3625 3610
filteredAreaStudent =
3648 3621 3613 3620 3626
  1 个评论
Matt J
Matt J 2012-10-14
编辑：Matt J 2012-10-14
It really doesn't make sense for you to maintain data like this in cell arrays. Data like this can be held in simple matrices, making them very simple (and CPU optimized) to subtract
Differences = filteredAreaSample - filteredAreaStudent
Cell arrays are meant mainly for situations where you have arrays of different sizes or types, e.g.,
mycell={rand(5), eye(3),'dog','cat'},
or when you want to perform comma-separated list operations, e.g.,
[A,B,C,D]=deal(mycell{:});

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2012-10-14
编辑：Azzi Abdelmalek 2012-10-14
A ={ 3594 3627 3626 3625 3610}
B ={ 3648 3621 3613 3620 3626}
res=cellfun(@(x,y) y-x,A,B)
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Yao
Yao 2012-10-14
Hi sir, i tried your method and it works.
Thank you so much for your help.
Lets say if I want to build a counter that says if res is larger then 100; add 1 if res is smaller then 100 add 0, how should I do it? In this case, the output are all zeros, so I should show my results as 20. Thanks again for your help
out = Difference >100
out =
Columns 1 through 12
0 0 0 0 0 0 0 0 0 0 0 0
Columns 13 through 20
0 0 0 0 0 0 0 0
Azzi Abdelmalek
Azzi Abdelmalek 2012-10-14
编辑：Azzi Abdelmalek 2012-10-14
Can you be more clear, you have your array Difference, what test do you want to do? And I think you should accept the answer that correspond to your expectation then post another question.

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更多回答（1 个）

Wayne King
Wayne King 2012-10-13
编辑：Wayne King 2012-10-13
out = cellfun(@minus,filteredAreaSample,filteredAreaStudent);

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