M. Edward (Ed) Borasky
8/1/2007 4:08:00 AM
M. Edward (Ed) Borasky wrote:
> M. Edward (Ed) Borasky wrote:
>> Ams Lone wrote:
>>> Hi - Do you know if there is an open-source package to do candlestick
>>> stock/technical charts using Ruby?
>> You could probably hack something up pretty quickly on Windows if Excel
>> is installed by using the OLE interface. If there's a similar
>> candlestick capability in OpenOffice.org's spreadsheet or Gnumeric, you
>> could do it that way.
>>
>> Years ago when I was into technical analysis I had some blindingly fast
>> Forth code and some moderately usable Perl 4 code that did point and
>> figure charts, which is all I used. The Forth code was so fast it could
>> have charted tick data in real time on an 8 MHz 80186 if I had tick data
>> to chart. :)
>>
>> I could go look for that -- it's probably on a floppy disk somewhere,
>> although I could probably reproduce it in Ruby from memory faster than
>> I'd be able to find a 15 year old floppy disk. Point and figure is a lot
>> more fun than candlesticks anyhow. :)
>>
>> Do you have real time data? Would you be pulling quote data off the web
>> and using it? If they're still around, "stockcharts.com" had a whole
>> bunch of unusual chart types, including an extremely nifty point and
>> figure Java applet, candlesticks, and some charts I've never seen
>> anywhere else.
>>
>>
>>
> Now that I think of it, point and figure charts might make an
> interesting Ruby Quiz. :) Let me go find some test data.
>
>
More info ... it doesn't look like "oocalc" does candlesticks. However,
it looks like you can do them in Gnumeric, and "gnuplot" has them built
in. So your best bet is probably to use the Ruby "gnuplot" library.
Also ... I checked and stockcharts.com still has their nifty point and
figure charts. They also have candlesticks. So ... I think this would
make a nice Ruby quiz.