On Mon, Jun 10, 2013 at 8:08 PM, Sudheer Joseph <sudheer.jos...@yahoo.com>wrote:
>
> Thank you,
> So there is no way to get J F M A etc with out reducing font size?
>
I bet there a number of ways. Offhand I don't know the one that, once I
hear about it, I will say, "D'oh, that's so easy" but I bet it exists. But
you could modify the DateFormatter class. It is set to return a strftime
result string. Here is the function:
def __call__(self, x, pos=0):
if x==0:
raise ValueError('DateFormatter found a value of x=0, which is
an illegal date. This usually occurs because you have not informed the
axis that it is plotting dates, eg with ax.xaxis_date()')
dt = num2date(x, self.tz)
return self.strftime(dt, self.fmt)
All you would have to do is change that last line to:
return self.strftime(dt, self.fmt)[0]
To slice just the first letter of the month.
So you could subclass DateFormatter to do this, since you probably don't
want to modify the actual DateFormatter class always in this way.
Also, aside from the J F M A approach, you could just rotate the month's
name, and that will reduce crowding while keeping the month a little
clearer (I think "JAN FEB MAR APR" is more intuitive and pleasant to read
on a graph).
Che
> We often need to make presentation in front of senior people who insist
> for bigger fonts.
> With best regards,
> Sudheer
>
> ------------------------------
> * From: * Paul Hobson <pmhob...@gmail.com>;
> * To: * Sudheer Joseph <sudheer.jos...@yahoo.com>;
> * Cc: * matplotlib-users@lists.sourceforge.net <
> matplotlib-users@lists.sourceforge.net>;
> * Subject: * Re: [Matplotlib-users] time axis format
> * Sent: * Mon, Jun 10, 2013 8:08:18 PM
>
> 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
> <sudheer.jos...@yahoo.com>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
>> 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.in...@gmail.com;sudheer.jos...@yahoo.com
>> Web- http://oppamthadathil.tripod.com
>> ***************************************************************
>>
>> ------------------------------
>> *From:* Sudheer Joseph <sudheer.jos...@yahoo.com>
>> *To:* Paul Hobson <pmhob...@gmail.com>
>> *Cc:* "matplotlib-users@lists.sourceforge.net" <
>> matplotlib-users@lists.sourceforge.net>
>> *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.in...@gmail.com;sudheer.jos...@yahoo.com
>> Web- http://oppamthadathil.tripod.com
>> ***************************************************************
>>
>> ------------------------------
>> *From:* Paul Hobson <pmhob...@gmail.com>
>> *To:* Sudheer Joseph <sudheer.jos...@yahoo.com>
>> *Cc:* "matplotlib-users@lists.sourceforge.net" <
>> matplotlib-users@lists.sourceforge.net>
>> *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 <sudheer.jos...@yahoo.com
>> > 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)
>>
>>
>>
>>
>>
>
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