[Haskell-cafe] Candlestick charts

[Malcolm Wallace]

>> What are the libraries to use in Haskell to generate a stock
>> candlestick chart like
>> http://stockcharts.com/h-sc/ui?s=SPY&p=D&b=5&g=5&id=p05007254056

> The chart library:
>     http://hackage.haskell.org/package/Chart
> doesn't currently have support for candlestick charts, but adding
> support would be straightforward - a patch would be most welcome
> (hint, hint!).

I have a patch for Chart, adding candles as a new plot type.  Patch  
attached, together with a PNG of some demo output.  (patch containing  
demo/test to follow.)

Regards,
     Malcolm

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