Re: [Matplotlib-users] time axis format

[Paul H. <pmh...@gm...>]

In that case, I would use ax.tick_params(...) to make the font smaller.


On Sat, Jun 8, 2013 at 7:36 AM, Sudheer Joseph <sud...@ya...>wrote:

> Dear Paul,
>                The issue I am facing is like in the attached plot where
> the month naming get cluttered.
> with best regards,
> Sudheer
>
> ***************************************************************
> Sudheer Joseph
> Indian National Centre for Ocean Information Services
> Ministry of Earth Sciences, Govt. of India
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> ***************************************************************
>
>   ------------------------------
>  *From:* Sudheer Joseph <sud...@ya...>
> *To:* Paul Hobson <pmh...@gm...>
> *Cc:* "mat...@li..." <
> mat...@li...>
> *Sent:* Saturday, 8 June 2013 7:46 PM
>
> *Subject:* Re: [Matplotlib-users] time axis format
>
> Thank you Paul for the helping hand,
>                                   However I was looking for slightly
> different solution like in the attached plots. I used ferret to do this
> based on the length of the time axis it chose the mode of labelling. for
> example in case of 2 year plot it made month labeling as j f m etc and in
> case of 1 year as there is enough space on x axis it made jan feb etc with
> single label of year.
>
> In the attached python plot (ATser_RAMA_HYCOM_U_8n90e.png) every tick
> point is lablled for year, which I wanted to avoid and get plots similar to
> the first types thought it is not done automatically but at least manually.
>
>
>
> ***************************************************************
> Sudheer Joseph
> Indian National Centre for Ocean Information Services
> Ministry of Earth Sciences, Govt. of India
> POST BOX NO: 21, IDA Jeedeemetla P.O.
> Via Pragathi Nagar,Kukatpally, Hyderabad; Pin:5000 55
> Tel:+91-40-23886047(O),Fax:+91-40-23895011(O),
> Tel:+91-40-23044600(R),Tel:+91-40-9440832534(Mobile)
> E-mail:sjo...@gm...;sud...@ya...
> Web- http://oppamthadathil.tripod.com
> ***************************************************************
>
>   ------------------------------
>  *From:* Paul Hobson <pmh...@gm...>
> *To:* Sudheer Joseph <sud...@ya...>
> *Cc:* "mat...@li..." <
> mat...@li...>
> *Sent:* Friday, 7 June 2013 8:50 PM
> *Subject:* Re: [Matplotlib-users] time axis format
>
>
>
>
> On Thu, Jun 6, 2013 at 11:39 PM, Sudheer Joseph <sud...@ya...>wrote:
>
> Dear Experts,
>             I have been experimenting with the plot_dates option of
> matplotlib to plot time series data and have below questions
>
>  I have used
> loc = mdates.AutoDateLocator()
> ax.xaxis.set_major_locator(loc)
> ax.xaxis.set_major_formatter(mpl.dates.DateFormatter('%b\n %Y'))
>
>
> and got the tick labels in attached plot
>
> However I feel the repeatd year labeling is not needed here and it is
> required once in a year only , Also if I need to plot long time seris
> insted of "MAR" "APR" I wanted to get them reduced to "M" "A" etc so that
> the lavel congestion can be avoided.
>
>
> I notice that below options are available, but was wondering how
> commbinatins of these locateors are used ie mark every month and every year
> once each.
>
>
> Is there a way to achive the above or does it need further development?
>
> fmt = mdates.DateFormatter('%Y-%m-%d')
> loc = mdates.WeekdayLocator(byweekday=mdates.MONDAY,interval=4)
> locator = mdates.YearLocator()
>
>
> If I were trying to do this, I'd cobble something together using by the
> minor and major formatters.
> e.g.,...
> import matplotlib.dates as mdates
> import matplotlib.pyplot as plt
>
> fig, ax = plt.subplots()
>
> majorLocs = mdates.MonthLocator(bymonth[1,7])
> majorFmt = mdates.DateFormatter('%b\n%Y')
>
> minorLocs = mdates.MonthLocator(bymonth[1,7])
> minorFmt = mdates.DateFormatter('%b')
>
> ax.xaxis.set_major_locator(majorLocs)
> ax.xaxis.set_major_formatter(majorFmt)
>
> ax.xaxis.set_minor_locator(minorLocs)
> ax.xaxis.set_minor_formatter(minorFmt)
>
>
>
>
>