Not quite sure how to code this

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May 16, 2019 at 1:54 am #101382

JulianCohen
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There is a blog I read occasionally that has a breadth indicator that he uses to gauge the market.

http://throwinggoodmoney.com/matts-breadth-indicator/

His breadth indicator counts up all the stocks that are current members of the Russell 3000 and that are up >30% in the last 60 trading days. Then counts the number that are more than 30% down. These figures are applied to a breadth diffusion calculation like this:

up30 / (up30 + down30 ) * 100

I’m not sure how to count the number of stocks up or down and store them as a variable without doing an exploration each time, as I would like to backtest the idea.

Any ideas anyone please?

May 16, 2019 at 2:15 am #110022

GlenPeake
Participant

Hey Julian,

I haven’t tried these at all, but it might give you some ideas etc

http://throwinggoodmoney.com/2015/12/amibroker-code-for-the-breadth-indicator/

http://www.asxmarketwatch.com/2015/11/amibroker-q-a-how-to-create-the-52-week-highlow-index-with-addtocomposite/

https://www.wisestocktrader.com/indicators/5644-breadth-indicator-for-amibroker-afl

May 16, 2019 at 2:30 am #110023

JulianCohen
Participant

Cheers Glen…all I can say is “DOH!”

May 16, 2019 at 5:24 am #110024

JulianCohen
Participant

Actually it’s only a ‘half Doh’ as although I didn’t see his code for the indicator, that’s the bit I could have worked out for myself. The real issue is how to access the addtocomposite in the backtester. I have a feeling I might need to use the CBT to do this.

May 16, 2019 at 5:42 am #110025

Stephen James
Member

No need for CBT.

AddtoComposite has flags for explorations and backtesting such as atcFlagEnableInBacktest.

You can more than one flag in there also – check the user guide for a full list.

atcFlagDeleteValues is also recommended for testing.
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