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How can I build only the days of the week using the Ppton matplotlib candlestick?

I am unable to print matplotlib.finance.candlestick seven days a week (spaces between every 5 candlesticks). The example from the Matplotlib website does not exclude weekends and the way to exclude weekends in other areas does not seem to apply to CandleSticks.

Has anyone come across this before?

ps. as requested, here is an example:

#!/usr/bin/env python
from pylab import *
from matplotlib.dates import  DateFormatter, WeekdayLocator, HourLocator, \
 DayLocator, MONDAY
from matplotlib.finance import quotes_historical_yahoo, candlestick,\
 plot_day_summary, candlestick2

# (Year, month, day) tuples suffice as args for quotes_historical_yahoo
date1 = ( 2004, 2, 1)
date2 = ( 2004, 4, 12 )


mondays = WeekdayLocator(MONDAY)        # major ticks on the mondays
alldays    = DayLocator()              # minor ticks on the days
weekFormatter = DateFormatter('%b %d')  # Eg, Jan 12
dayFormatter = DateFormatter('%d')      # Eg, 12

quotes = quotes_historical_yahoo('INTC', date1, date2)

fig = figure()
fig.subplots_adjust(bottom=0.2)
ax = fig.add_subplot(111)
ax.xaxis.set_major_locator(mondays)
ax.xaxis.set_minor_locator(alldays)
ax.xaxis.set_major_formatter(weekFormatter)

#plot_day_summary(ax, quotes, ticksize=3)
candlestick(ax, quotes, width=0.6)

ax.xaxis_date()
ax.autoscale_view()
setp( gca().get_xticklabels(), rotation=45, horizontalalignment='right')

show()
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1 answer

After the line 'quotes':

weekday_quotes = [tuple([i]+list(quote[1:])) for i,quote in enumerate(quotes)]

then

candlestick(ax, weekday_quotes, width=0.6)

This will lead to the construction of data without gaps between weekdays, now you should change the signs for dates, preferably on Mondays. Assuming your first quote was on Monday:

import matplotlib.dates as mdates

ax.set_xticks(range(0,len(weekday_quotes),5))
ax.set_xticklabels([mdates.num2date(quotes[index][0]).strftime('%b-%d') for index in ax.get_xticks()])

, , , - !

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