Re: [Matplotlib-users] MonthLocator doesn't honour rrule bymonthday -1 value for last day of month

On 01/04/2013 14:48, Mark Lawrence wrote:
> On 29/03/2013 15:49, Mark Lawrence wrote:
>> Hi all,
>>
>>    From http://labix.org/python-dateutil
>>
>> "To generate a rrule for the use case of "a date on the specified day of
>> the month, unless it is beyond the end of month, in which case it will
>> be the last day of the month" use the following:
>>
>> rrule(MONTHLY, bymonthday=(some_day, -1), bysetpos=1)
>>
>> This will generate a value for every calendar month regardless of the
>> day of the month it is started from."
>>
>> Using bymonthday with MonthLocator gives ticks on the day given and the
>> last day of the month, which looks extremely ugly.  Code below demonstrates.
>>
>> from dateutil.rrule import *
>> import datetime
>> import matplotlib.pyplot as plt
>> from matplotlib.ticker import FormatStrFormatter, MultipleLocator
>> from matplotlib.dates import DateFormatter, MonthLocator, DayLocator
>>
>> start = datetime.date(2013, 3, 29)
>> until = datetime.date(2014, 3, 29)
>> dates = rrule(MONTHLY, bymonthday=(29, -1), bysetpos=1, until=until)
>> for d in dates:print(d)
>>
>> dates = [start, until]
>> values = [0, 1]
>> plt.ylabel('Balance')
>> plt.grid()
>> ax = plt.subplot(111)
>> plt.plot_date(dates, values, fmt = 'rx-')
>> ax.xaxis.set_major_locator(MonthLocator(bymonthday = (dates[0].day, -1)))
>> ax.xaxis.set_major_formatter(DateFormatter('%d/%m/%y'))
>> ax.yaxis.set_major_formatter(FormatStrFormatter('£%0.2f'))
>> ax.yaxis.set_minor_locator(MultipleLocator(5))
>> plt.axis(xmin=dates[0], xmax=dates[-1])
>> plt.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10)
>> plt.setp(plt.gca().get_yticklabels(), fontsize = 10)
>> plt.show()
>>
>
> Seems an apt date to realise that I didn't say much :(
>
> Assuming that I'm correct would you like an issue raised on the bug
> tracker?  If not please correct the mistake I've made, presumably in
> reading the docs, which I think are excellent by the way.
>

Anybody?

-- 
If you're using GoogleCrap™ please read this 
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Mark Lawrence