Re: [Matplotlib-users] Aligning xticks and labels with WeekdayLocator
On 19/03/2013 18:35, Paul Hobson wrote:
On Tue, Mar 19, 2013 at 11:30 AM, Paul Hobson pmhob...@gmail.com
mailto:pmhob...@gmail.com wrote:
On Mon, Mar 18, 2013 at 8:34 PM, Mark Lawrence
breamore...@yahoo.co.uk
mailto:breamore...@yahoo.co.uk wrote:
Matplotlib 1.2.0, Windows Vista, Python 3.3.0. I want the first
major
xtick label aligned with the first date that's plotted. This never
happens with the value of day below set in the range zero to
six. The
first major tick label actually occurs as follows.
Day Label date
0 25/03/2013
1 02/04/2013
2 10/04/2013
3 21/03/2013
4 29/03/2013
5 06/04/2013
6 17/03/2013
What am I doing wrong?
If day is set to seven then no xticks are displayed but labels for
14/03/2013 and 13/03/2014 are displayed. I expected a ValueError or
similar using this number. Could you explain this behaviour please?
import matplotlib.pyplot as plt
from matplotlib.ticker import FormatStrFormatter, MultipleLocator
from matplotlib.dates import DateFormatter, WeekdayLocator
import datetime
dates = [datetime.date(2013, 3, 14), datetime.date(2014, 3, 13)]
values = [0, 1]
plt.ylabel('Balance')
plt.grid()
ax = plt.subplot(111)
plt.plot_date(dates, values, fmt = 'rx-')
plt.axis(xmin=dates[0], xmax=dates[-1])
day = ?
ax.xaxis.set_major_locator(WeekdayLocator(byweekday=day,
interval=4))
ax.xaxis.set_minor_locator(WeekdayLocator(byweekday=day))
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.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10)
plt.setp(plt.gca().get_yticklabels(), fontsize = 10)
plt.show()
Mark,
I've found that rotation_mode='anchor' works best when rotation != 0
So that makes it:
plt.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10,
rotation_mode='anchor' )
HTH,
-paul
I misread your question. Try setting your x-axis limits after defining
the locators and formatters.
-p
Please accept my apologies for the delay in replying, plus I should also
have mentioned originally that I've only encountered this problem with
WeekdayLocator.
Setting the x-axis limits after defining the locators and formatters
makes no difference.
I've resolved my issue by reverting back to using MonthLocator, which I
originally disliked as the minor tick locations made the display look
poor around that darned month of February. My solution has been to
ignore all rrule type computing and use the following code.
xticks = ax.get_xticks()
minorTicks = []
for i,xt in enumerate(xticks, start=1):
try:
diff = (xticks[i] - xt) / 4
for i in range(1, 4):
minorTicks.append(xt + i * diff)
except IndexError:
pass
ax.set_xticks(minorTicks, minor=True)
It works a treat, but if there's a simpler solution please let me know :)
--
Cheers.
Mark Lawrence
--
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Re: [Matplotlib-users] Aligning xticks and labels with WeekdayLocator
On Mon, Mar 18, 2013 at 8:34 PM, Mark Lawrence breamore...@yahoo.co.ukwrote:
Matplotlib 1.2.0, Windows Vista, Python 3.3.0. I want the first major
xtick label aligned with the first date that's plotted. This never
happens with the value of day below set in the range zero to six. The
first major tick label actually occurs as follows.
Day Label date
0 25/03/2013
1 02/04/2013
2 10/04/2013
3 21/03/2013
4 29/03/2013
5 06/04/2013
6 17/03/2013
What am I doing wrong?
If day is set to seven then no xticks are displayed but labels for
14/03/2013 and 13/03/2014 are displayed. I expected a ValueError or
similar using this number. Could you explain this behaviour please?
import matplotlib.pyplot as plt
from matplotlib.ticker import FormatStrFormatter, MultipleLocator
from matplotlib.dates import DateFormatter, WeekdayLocator
import datetime
dates = [datetime.date(2013, 3, 14), datetime.date(2014, 3, 13)]
values = [0, 1]
plt.ylabel('Balance')
plt.grid()
ax = plt.subplot(111)
plt.plot_date(dates, values, fmt = 'rx-')
plt.axis(xmin=dates[0], xmax=dates[-1])
day = ?
ax.xaxis.set_major_locator(WeekdayLocator(byweekday=day, interval=4))
ax.xaxis.set_minor_locator(WeekdayLocator(byweekday=day))
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.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10)
plt.setp(plt.gca().get_yticklabels(), fontsize = 10)
plt.show()
Mark,
I've found that rotation_mode='anchor' works best when rotation != 0
So that makes it:
plt.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10,
rotation_mode='anchor' )
HTH,
-paul
--
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Re: [Matplotlib-users] Aligning xticks and labels with WeekdayLocator
On Tue, Mar 19, 2013 at 11:30 AM, Paul Hobson pmhob...@gmail.com wrote:
On Mon, Mar 18, 2013 at 8:34 PM, Mark Lawrence breamore...@yahoo.co.ukwrote:
Matplotlib 1.2.0, Windows Vista, Python 3.3.0. I want the first major
xtick label aligned with the first date that's plotted. This never
happens with the value of day below set in the range zero to six. The
first major tick label actually occurs as follows.
Day Label date
0 25/03/2013
1 02/04/2013
2 10/04/2013
3 21/03/2013
4 29/03/2013
5 06/04/2013
6 17/03/2013
What am I doing wrong?
If day is set to seven then no xticks are displayed but labels for
14/03/2013 and 13/03/2014 are displayed. I expected a ValueError or
similar using this number. Could you explain this behaviour please?
import matplotlib.pyplot as plt
from matplotlib.ticker import FormatStrFormatter, MultipleLocator
from matplotlib.dates import DateFormatter, WeekdayLocator
import datetime
dates = [datetime.date(2013, 3, 14), datetime.date(2014, 3, 13)]
values = [0, 1]
plt.ylabel('Balance')
plt.grid()
ax = plt.subplot(111)
plt.plot_date(dates, values, fmt = 'rx-')
plt.axis(xmin=dates[0], xmax=dates[-1])
day = ?
ax.xaxis.set_major_locator(WeekdayLocator(byweekday=day, interval=4))
ax.xaxis.set_minor_locator(WeekdayLocator(byweekday=day))
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.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10)
plt.setp(plt.gca().get_yticklabels(), fontsize = 10)
plt.show()
Mark,
I've found that rotation_mode='anchor' works best when rotation != 0
So that makes it:
plt.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10,
rotation_mode='anchor' )
HTH,
-paul
I misread your question. Try setting your x-axis limits after defining the
locators and formatters.
-p
--
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_d2d_mar___
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https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Aligning xticks and labels with WeekdayLocator
Matplotlib 1.2.0, Windows Vista, Python 3.3.0. I want the first major
xtick label aligned with the first date that's plotted. This never
happens with the value of day below set in the range zero to six. The
first major tick label actually occurs as follows.
Day Label date
0 25/03/2013
1 02/04/2013
2 10/04/2013
3 21/03/2013
4 29/03/2013
5 06/04/2013
6 17/03/2013
What am I doing wrong?
If day is set to seven then no xticks are displayed but labels for
14/03/2013 and 13/03/2014 are displayed. I expected a ValueError or
similar using this number. Could you explain this behaviour please?
import matplotlib.pyplot as plt
from matplotlib.ticker import FormatStrFormatter, MultipleLocator
from matplotlib.dates import DateFormatter, WeekdayLocator
import datetime
dates = [datetime.date(2013, 3, 14), datetime.date(2014, 3, 13)]
values = [0, 1]
plt.ylabel('Balance')
plt.grid()
ax = plt.subplot(111)
plt.plot_date(dates, values, fmt = 'rx-')
plt.axis(xmin=dates[0], xmax=dates[-1])
day = ?
ax.xaxis.set_major_locator(WeekdayLocator(byweekday=day, interval=4))
ax.xaxis.set_minor_locator(WeekdayLocator(byweekday=day))
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.setp(plt.gca().get_xticklabels(), rotation = 45, fontsize = 10)
plt.setp(plt.gca().get_yticklabels(), fontsize = 10)
plt.show()
--
Cheers.
Mark Lawrence
--
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_d2d_mar
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