On Oct 29, 2009, at 4:22 PM, Alok Singhal wrote: > Hi, > > On 29/10/09: 12:18, Ariel Rokem wrote: >> I want to start trying out the new dtype for representation of arrays >> of times, datetime64, which is implemented in the current svn. Is >> there any documentation anywhere? I know of this proposal: >> >> http://numpy.scipy.org/svn/numpy/tags/1.3.0/doc/neps/datetime-proposal3.rst >> >> but apparently the current implementation of the dtype didn't follow >> this proposal - the hypothetical examples in the spec don't work with >> the implementation. >> I just want to see a couple of examples on how to initialize arrays >> of >> this dtype, and what kinds of operations can be done with them (and >> with timedelta64). > > I think the only thing that works as of now for dates and deltas is > using datetime.datetime and datetime.timedelta objects in the > initilization of the arrays. See > http://projects.scipy.org/numpy/ticket/1225 for some tests.
Oh yes, I saw that... Marty Fuhry, one of our GSoC students, had written some pretty extensive series of tests to allocate datetime/ strings to elements of a ndarray with datetime64 dtype. He also had written some functions allowing conversion from one frequency to another. Unfortunately, I don't think his work has been incorporated yet. Maybe Jarrod M. and Travis O. will shed some light on that matter. I for one would be quite interested into checking what's happening on that front. In other more personal news: Ariel, I gonna be quite busy for the next couple of weeks, but we should chat off-list about our parallel efforts with time series (I still haven't found the time to delve into nipy, could you point me tothe most relevant part). _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
