Closest value between two vectors

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numnum
numnum 2017-11-21
编辑： Andrei Bobrov 2017-11-21
I have two vectors k and l.
k l
1 5
9 8
12 32
203 1003
… …
I want to find for each value in k, if the closest next value is in k or l (if its in k, add + 1 to a counter, if it’s l, add +1 to another counter. Any help would be imesnsly appreciated! Thanks a lot!
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KL
KL 2017-11-21
did you read my whole comment?
numnum
numnum 2017-11-21
for the last value of k, z=we don't care about it.

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回答（1 个）

Andrei Bobrov
Andrei Bobrov 2017-11-21
编辑：Andrei Bobrov 2017-11-21
kl =[1 5
9 8
12 32
203 1003];
z = randi([1 1003],8,1);
[~,ii] = min(abs(kl - reshape(z,1,1,[])),[],2);
out = accumarray(ii(:),1);
for numel(K) ~= numel(L):
K = randi([-45 120],12,1);
L = randi([-15 300],18,1);
z = randi([-45 300], 8 ,1);
[~,ii] = min(abs([K(:);L(:)] - z(:)'));
adds = accumarray((ii(:) > numel(K)) + 1,1);
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Image Analyst
Image Analyst 2017-11-21
Then just create kl.
kl = [k, l];
If k and l are different lengths, then please say so. Also say WHY you are wanting to do this.
numnum
numnum 2017-11-21
Yes, but i want to keep information about whether the value comes from k or l. They are of differemt lengths, i should've mentionned that. Each value in an array represents the time at which an event happened. The goal is to find out the number of events that are consequentive in k vs the number of events that happen in k then in l.

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