On Wed, Jul 30, 2008 at 9:17 AM, stuartornum <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> Wondering if anyone has done something similar and could point me in the
> right direction.
>
> I have a dictionary like this:
>
> Dict{'00:00:00':'23', '00:01:00':'29', '00:02:00':'13', '00:03:00':'78',
> '00:04:00':'45', >....> '23:59:00':54}
>
> So as you can see there is 24 hours worth of minutes, with a value attached
> to each minute.
>
> Firstly, just to note the Dictionary "Dict" is not actually in order as
> above, it is all jumbled up.
>
> However is it possible to plot a dictionary using MatPlotLib, and using the
> time along the x-axis and values up the y?
You will have to extract the x and y values, and convert them from
strings to values matplotlib can understand (for example dates and
floating point numbers). Eg
In [30]: d = {'00:00:00':'23', '00:01:00':'29', '00:02:00':'13',
'00:03:00':'78',
'00:04:00':'45', '23:59:00':54}
In [32]: from dateutil.parser import parse
In [33]: items = [(parse(date), float(val)) for date, val in d.items()]
In [34]: items.sort()
In [35]: items
Out[35]:
[(datetime.datetime(2008, 7, 30, 0, 0), 23.0),
(datetime.datetime(2008, 7, 30, 0, 1), 29.0),
(datetime.datetime(2008, 7, 30, 0, 2), 13.0),
(datetime.datetime(2008, 7, 30, 0, 3), 78.0),
(datetime.datetime(2008, 7, 30, 0, 4), 45.0),
(datetime.datetime(2008, 7, 30, 23, 59), 54.0)]
In [36]: dates, values = zip(*items)
In [37]: plot(dates, values)
Out[37]: [<matplotlib.lines.Line2D object at 0xb45a5ec>]
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