连续数字系列(不同长度) [英] Series of consecutive numbers (different lengths)
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问题描述
如果有人向我展示了一种简便的方法,我将不胜感激.假设我在MATLAB中有一个向量,例如
I would appreciate if someone showed me an easy way to do this. Let's say I have a vector in MATLAB like
d = [3 2 4 2 2 2 3 5 1 1 2 1 2 2 2 2 2 9 2]
我想找到连续数字二"的序列以及这些序列的长度.
I want to find the series of consecutive number "twos" and the lengths of those series.
通过x=find(d==2)
可以容易地找到数字二.但是我想要的是得到一个包含所有连续二号序列的长度的向量,这意味着在这种情况下,我的结果将是这样的向量:
Number twos can easily be found by x=find(d==2)
. But what I want is to get a vector which contains the lengths of all series of consecutive number twos, which means that my result in this case would be a vector like this:
[1 3 1 5 1].
有人可以帮助我吗?
推荐答案
这似乎可行:
q = diff([0 d 0] == 2);
v = find(q == -1) - find(q == 1);
给予
v =
1 3 1 5 1
对我来说
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