MATLAB: Last daily observation in a month (not lbusdate)

last daily observation

is there a way to keep only the last observation in a month from a datenum vector? For example
A=
        729530
        729537
        729544
        729551
        729558
        729565
That is
20-May-1997
27-May-1997
03-Jun-1997
10-Jun-1997
17-Jun-1997
24-Jun-1997
So the new vector should be only rows 2 and 6.
B=
729537
729565
This is not lbusdate.

Best Answer

Solved, used accumarray with @max
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