Re: [amibroker] problem with AlertIf() and GetRTData()

[dirk schreiber <tianatrading@xxxxxxxxx>]

OK,

 

marcin at support@xxxxxxxxxxxxx gave me an answer. maybe it is of interest to others as well:

GetRtData() and GetRTDataForeign() do not return/hold ARRAYS but only LAST NUMBER. therefore one cannot use

these functions together with other functions like Ref() or Cross() because they need an ARRAY.

quite a shame, i will have to revert back to good old Foreign() which executes slower than GetRTDataForeign().

 

dirk

 

----- Original Message -----

From: dirk schreiber

To: amibroker

Sent: Monday, May 01, 2006 10:21 PM

Subject: [amibroker] problem with AlertIf() and GetRTData()

i recently converted a rather large formula from SetForeign() to GetRTData(), but now i can't seem to get my AlertIfs working.

Could someone help me out and tell me why this (example) code does not generate alerts in the alert output window?

 

thanks,

dirk

 

//example code pair BHS-BZH

BHS=100*GetRTDataForeign("Change","BHS")/GetRTDataForeign("Prev","BHS"); //percentage change since yesterday's close

BZH=100*GetRTDataForeign("Change","BZH")/GetRTDataForeign("Prev","BZH"); //percentage change since yesterday's close

BHS_BZH_trigger=2; //trigger value

AlertIf(Ref(Cross((BHS-BZH),BHS_BZH_trigger),-1),"SOUND D:\\AmiBroker\\Sounds\\alert.wav","Signal Alert on pair BHS-BZH (up)",1);

AlertIf(Ref(Cross(-1*(BHS+BZH),BHS_BZH_trigger),-1),"SOUND D:\\AmiBroker\\Sounds\\alert.wav","Signal Alert on pair BHS-BZH (down)",1);

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