 Gold Customer
Joined: 1/28/2005
Posts: 3
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I chart the 30 day avg of TSV, and am trying to set up scans for when it crosses over or under 0, hits the max or hits the min. I've set up scans for price crossing moving averages, but can't seem to get the PCF right for the TSV cross-overs. Can you help?
Thanks,
Jack Price
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 Platinum Customer
Joined: 3/18/2005
Posts: 6
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TSV30>0 and TSV30.1<0
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Worden Trainer
Joined: 10/1/2004
Posts: 18,819
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Is it the TSV or an MA of TSV you are trying to get to cross zero?
- Craig
Here to Help!
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Registered User
Joined: 10/7/2004
Posts: 799
Location: Duluth, GA
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The second part of your question depends on the time period that you care about checking.
Let's say that you want to know if TSV30 is currently near (or at) its 66-day Min (Zoom 6 shows 66 days).
Here's a PCF that identifies if it is EXACTLY at the 66-day min, today:
TSV30 = Min(TSV30,66)
However, I suspect you would prefer knowing if TSV30 today is CLOSE TO its 66-day Min. To do this, you have to define what is "close enough" - which for unbounded indicators like TSV does not have a fixed answer.
Let's say that if today's value is within 5% of bottom of the 66-day Max-Min range of TSV30, then that's close enough and you want to get a True value from the PCF:
TSV30-Min(TSV30,66) < 0.05*( Max(TSV30,66) - Min(TSV30,66) )
Or, you could just create a value-PCF that gives the actual distance (in percent of 66-day Max-Min range) from the Min ... then set your EasyScan value thermometer for whatever cutoff you want (ie. 5%):
100* ( TSV30-Min(TSV30,66) )/( Max(TSV30,66) - Min(TSV30,66) )
You can do this without a PCF by doing a Visual SortBy of TSV30 on a Zoom-6 (66 day) window, also ... but that cannot be built in to your EasyScan.
I hope this helps.
Jim Dean
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