[haskell-gnuplot] CandleSticks

[Sean McEligot]

I don't see candlesticks in Demo.hs or anything that takes more than
two (x,y) plot points.

Here's an example of what I'm trying to do.

http://www.gnuplot.info/demo_canvas/candlesticks.html

On Fri, Apr 9, 2010 at 11:43 AM, Henning Thielemann
<gnuplot at henning-thielemann.de> wrote:
>
> On Thu, 8 Apr 2010, Sean McEligot wrote:
>
>> How can display a candlestick. It needs five data items
>> (date,open,close,high,low) but plotPathStyle only takes two.
>>
>> This compiles, but fails at runtime with:
>> "curve.gp", line 4: Not enough columns for this style
>>
>> graph :: (Show a) => [(a, a)] -> IO ()
>> graph prices = plotPathStyle [XTime, XFormat "%m-%d", Title
>> "CandleSticks"]
>>           (PlotStyle CandleSticks (CustomStyle [])) prices
>>
>> What I want is:
>> graph :: (Show a) => [(a,a,a,a,a)] -> ()
>
> For graphs beyond the most simple ones I suggest the advanced interface
> (although I have not used candle sticks so far). It is demonstrated in:
>  http://code.haskell.org/gnuplot/src/Demo.hs
>