Can metastock "remind" variable values at previous bar? - Can metastock "remind" variable values at previous bar? Options  Email this topic  Watch this topic  Print this topic » Normal Threaded

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Leverage		#1 Posted : Friday, March 5, 2010 8:41:14 AM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers, Unverified Users Joined: 1/25/2010(UTC) Posts: 44 Location: Rome, IT		Hi guy! I'm writing an indicator and I want to know how getting a variable value at the previous bar. Example: if I want a dummy indicator the plot 1,0,1,0,1,0,1,0,1,0 for all the bar, I need to know if at previous bar the indicator plotted 1 or 0
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v.trader		#2 Posted : Friday, March 5, 2010 9:33:37 AM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers Joined: 10/26/2009(UTC) Posts: 76 Location: Toronto, Canada		Have you tried using PREV?
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Leverage		#3 Posted : Friday, March 5, 2010 10:07:28 AM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers, Unverified Users Joined: 1/25/2010(UTC) Posts: 44 Location: Rome, IT		I didn't use it. Can you explain me an easy example on how to use it? Tnx
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v.trader		#4 Posted : Friday, March 5, 2010 10:31:36 AM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers Joined: 10/26/2009(UTC) Posts: 76 Location: Toronto, Canada		http://forum.equis.com/forums/thread/31267.aspx I'm not sure that PREV should be use though. I will try writing the code for your dummy indicator, but now I have to go to work so if I am able to code it I will post it later on today. VT
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v.trader		#5 Posted : Friday, March 5, 2010 10:34:55 AM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers Joined: 10/26/2009(UTC) Posts: 76 Location: Toronto, Canada		The code for the dummy is (type into your indicator builder): x=1; y:= x - PREV; y; You can see how prev uses the last result. You can build some useful indicators with prev.
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Leverage		#6 Posted : Friday, March 5, 2010 11:52:18 AM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers, Unverified Users Joined: 1/25/2010(UTC) Posts: 44 Location: Rome, IT		Tnx v.trader, now I will try it
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wabbit		#7 Posted : Friday, March 5, 2010 6:11:11 PM(UTC)
Rank: Advanced Member Groups: Registered, Registered Users, Subscribers, Unverified Users Joined: 10/28/2004(UTC) Posts: 3,111 Location: Perth, Western Australia Was thanked: 16 time(s) in 16 post(s)		Instead of using the slow PREV (recursive) function, think a little more logically; try this: Code: mod(cum(1),2)=0; wabbit [:D]
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