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Hi all,
 I am implementing a program using the candlestick function which plots
some finance data.
 After plotting some graph, I found that it doesn't follow the candlestick
charting convention according to:
http://stockcharts.com/school/doku.php?id=chart_school:chart_analysis:introduction_to_candlesticks
I have made some changes to candlestick in finance.py but I have no idea how
to modify candlestick2... because I am a python newbie.
I am posting the modified code to the list because I don't know how to get
it patched into the source control. Please let me know If I post it to the
wrong list.
----------------------------------------code section
begin-----------------------------
def candlestick(ax, quotes, width=0.2, colorup='k', colordown='r',
 alpha=1.0):
 """
 quotes is a list of (time, open, close, high, low, ...) tuples.
 As long as the first 5 elements of the tuples are these values,
 the tuple can be as long as you want (eg it may store volume).
 time must be in float days format - see date2num
 Plot the time, open, close, high, low as a vertical line ranging
 from low to high. Use a rectangular bar to represent the
 open-close span. If close >= open, use colorup to color the bar,
 otherwise use colordown
 ax : an Axes instance to plot to
 width : fraction of a day for the rectangle width
 colorup : the color of the rectangle where close >= open
 colordown : the color of the rectangle where close < open
 alpha : the rectangle alpha level
 return value is lines, patches where lines is a list of lines
 added and patches is a list of the rectangle patches added
 """
 OFFSET = width/2.0
 lines = []
 patches = []
 prev_close=-1
 for q in quotes:
 t, open, close, high, low = q[:5]
 if(prev_close==-1 or close>=prev_close):
 color_edge=colorup
 else:
 color_edge=colordown
 prev_close=close
 if close>=open :
 color_body='w'
 lower = open
 height = close-open
 vline1 = Line2D(
 xdata=(t, t), ydata=(close, high),
 color=color_edge,
 linewidth=0.5,
 antialiased=True,
 )
 vline2 = Line2D(
 xdata=(t, t), ydata=(open, low),
 color=color_edge,
 linewidth=0.5,
 antialiased=True,
 )
 else :
 color_body = color_edge
 lower = close
 height = open-close
 vline1 = Line2D(
 xdata=(t, t), ydata=(close, low),
 color=color_edge,
 linewidth=0.5,
 antialiased=True,
 )
 vline2 = Line2D(
 xdata=(t, t), ydata=(open, high),
 color=color_edge,
 linewidth=0.5,
 antialiased=True,
 )
 rect = Rectangle(
 xy = (t-OFFSET, lower),
 width = width,
 height = height,
 facecolor = color_body,
 edgecolor = color_edge,
 )
 rect.set_alpha(alpha)
 lines.append(vline1)
 lines.append(vline2)
 patches.append(rect)
 ax.add_line(vline1)
 ax.add_line(vline2)
 ax.add_patch(rect)
 ax.autoscale_view()
 return lines, patches
----------------------------------------code section
end-----------------------------