how to use datefind function?

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pruth
pruth on 16 Feb 2016
Answered: Titus Edelhofer on 16 Feb 2016
in help, I found this
Superset = datenum(1999, 7, 1:31);
Subset = [datenum(1999, 7, 10); datenum(1999, 7, 20)];
Indices = datefind(Subset, Superset, 5)
Indices =
5
6
7
8
9
10
11
12
13
14
15
15
16
17
18
19
20
21
22
23
24
25
here tolerance = (Optional) Tolerance (+/-) for matching the date numbers in Superset. but what to do if I want only previous dates. i.e.
5
6
7
8
9
10
15
16
17
18
19
20
only negative tolerance.

Accepted Answer

Titus Edelhofer
Titus Edelhofer on 16 Feb 2016
Hi,
use
which datefind
to find the file datefind.m in the finance toolbox. Copy it to your folder and name it "mydatefind.m". Open in the editor and replace the line
i = find(d <= tol);
by
i = find(d <= tol & super<=sub(idx));
Hope this helps,
Titus

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