matlab - Find elements meeting any of a number of criteria -

I'm trying to find the indicator elements in a vector which corresponds to another vector, preferably loops without using. For example, my input may be:

  DJiSet = [5 7 8]; % Elements in which I need index GSAT = [3 4 5 6 7 8 9 11 12 20];  

will be here% vector to search:

  [3 5 6]  

The fastest I 'Has come up with:

  output = search (ismember (gset, djset));  

However, I feel that it can be faster, especially when I thought that Search command is slow.

Note things to GST

Jisiti

• Dijiset code > always sorted in ascending order without repeated entries
• vector DJiSet to Jisiti
/ Ul>

< p>

approach # 1

you DJiSet and < Find out the ismember inside the code> GSET and locate and then use the second index, which we call the matching index

Approach # 2

[~, outside] = ismember (DJiSet, JiSet)

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/ P>

The specific conditions set out in the question can be tried out of the afternoon's perspective, not sure whether it will be m ore efficient -

  intv_idx = zero ( 1, number (DJiSet)); Intv_idx (1) = find (GESet == DJset (1), 1); Start = intv_idx (1) +1; K = 2: numel (DJiSet) idx = find (GSAT (start: end) == DJiSet (k), 1); Start = idx + start; Intv_idx (k) = idx; End = cumsum (intv_idx);