[Matplotlib-users] Converting dates into a suitable format for MatPlotLib

[Paul Hobson]

You'll need to write your own parser. Something like:

from datetime import datetime
def parse_date_tuple(dt):
    year, month, day, _day_fraction = dt # unpack the tuple
    hour = _day_fraction * 24
    return datetime(year, month, day, hour)

So you could apply that to a list of your date-tuples like this:

dates = numpy.array([parse_date_tuple(dt) for dt in date_tuple_list])

I didn't test any of this, so caveat emptor and whatnot.


On Thu, Jan 12, 2017 at 3:03 PM, Michael Morrone <mikem at oceanweather.com>
wrote:

> Hello,
>
>
>
> I have a series of dates of the form (YYYY, mm, dd, (hh/24)) as output
> from the module jd2gcal.  hh/24 = the fractional part of a day represented
> as a decimal, i.e. 12/24 = 0.5 so my data would look like this for December
> 21, 2015 at 12:00 UTC:
>
>
>
>                 (2015, 12, 21, 0.5)
>
>
>
> Is there a way to convert the above string into a date format suitable for
> plotting in MatPlotLib?  There doesn’t seem to be a format representation
> for a fractional day in Python as far as I can tell.  I’m a newbie, so type
> slowly. J
>
>
>
> Many thanks for any assistance!
>
>
>
> Regards,
>
> Mike
>
>
>
> Michael Morrone
>
> Meteorologist
>
> Oceanweather, Inc.
>
> mikem at oceanweather.com
>
>
>
> _______________________________________________
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> Matplotlib-users at python.org
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>
>
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