Candlestick Chart In ROOT

[amvargash]

Hi Everyone,

Is it possible to plot Candlestick charts in ROOT? I was going through the documentation of CANDLE Draw option but it looks like it is different from the candlestick I’m looking for. I have a set of data composed by an analogous form of First Quartile (Open/Close), Third Quartile (Open/Close), Minimum (Low) and Maximum (High) describing each point. Is this function implemented? Or is there a way to use CANDLE option to do these charts?

[couet]

@Georg_T can surely help with your question.

[Georg_T]

Sorry, I forgot to answer…

I’m afraid I do not understand your concern. Can you provide a picture or something?

Thanks
Georg

[amvargash]

Hi Georg_T

Four values per data point:

They are well known charts, not in physics though:

Candlestick chart

Thanks,

Best,
Andres

[ksmith]

Just to clarify, it sounds to me as if @amvargash already has the statistics computed from his data set and wants to plot the candlestick plot without the original distribution.

[amvargash]

I quote a hack from @Georg_T

@Georg_T

If the distribution, you are providing consists exactly of 5 values and you choose the simple whisker definition, these five value should be exactly upper whiser, upper part of the box, median, lower part of the box and the lower whisker.

Switch off the mean of the candle, and prove a TH2 histo of that kind as described and you will get the candle that you need!

here is a simple example

int candletest() {
TH2D *h = new TH2D("h","h",2,0,2,100,0,100);
h->Fill(0.,10.);
h->Fill(0.,30.);
h->Fill(0.,40.);
h->Fill(0.,50.);
h->Fill(0.,70.);
h->Fill(1.,10.);
h->Fill(1.,40.);
h->Fill(1.,50.);
h->Fill(1.,70.);
h->Fill(1.,90.);
//h->Draw(“CANDLEX(1001)”); //without anchor
h->Draw(“CANDLEX(11001)”); //with anchor

return 0;
}

Georg

[amvargash]

It can be implemented using TGraphErrors, TGraphAsymmErrors, TMultiGraph, and a little bit of math:

[nehcuh]

Hi, can you paste a simple demo? I’m also looking for solution for candle stick plot using ROOT.

[pamputt]

You will find several examples here.
You can also read the documentation here.

[nehcuh]

Great！
Thx:grinning:

[amvargash]

@nehcuh For the one I mentioned, there is some code available here https://github.com/vargasa/StockDataAnalysis/ I’m no t sure if the data downloading still works but probably you can reuse and adapt some of the code