Get MATLAB datenum for an I-deas date string.
n=ideas_datenum(s)
IDEAS_DATENUM is a utility function that converts an I-deas date/time string s into a numeric date/time n.
I-deas date/time strings are used for creation and modification date strings in imat_fn objects, and have the format 'DD-MMM-YY HH:MM:SS'. IDEAS_DATENUM also handles the IRIG Time format, which is 'DDD:HH:MM:SS.SSSSSS', where DDD is the number of days from the beginning of the year.
MATLAB numeric date/time values are serial days where 1 is 1-Jan-0000.
>> f=imat_fn(1);
>> n=ideas_datenum(f.createdate)
n =
7.2974e+05
>> datevec(n)
ans =
1997 12 16 9 24 41
>>