[Dogpile]

any coding buffs know how to run a continually updating linear regression line off the adv-decl line since 1st bar of day?

I changed the code to make it work off the first bar of the day on regular 'price'... but my adv-decl line runs as an 'indicator' keying off the difference of Data1($Adv) & Data2 ($Decl). thus, is there a simple way to tell this indicator to run off another indicator rather than re-coding the entire thing to reference the difference of data1 & data2??

thx in advance.

Here is my current code (which is currently the canned 'Linear Reg Line' TS indicator with a small adjustment to run off the first bar of the day):

	Quote:
	inputs: EndDate_YYMMDD( 0 ), { 0 or YYMMDD, constant; if EndDate_YYMMDD = 0, EndTime_HHMM ignored and last bar on chart used } EndTime_HHMM( 0 ), { 0 or HHMM, constant; EndTime_HHMM ignored if 0 } Color( Yellow ), ExtRight( true ) ; variables: EndDate( iff( EndDate_YYMMDD < 500000, EndDate_YYMMDD + 1000000, EndDate_YYMMDD ) ), LRV( 0 ), LRVAgo( 0 ), TLLRV( 0 ), Flag( 0 ), Length( 0 ), firstbar(0); if date>date[1] then begin firstbar=currentbar; end; length=currentbar-firstbar; if Flag = 0 then { Insert a lin reg line for the first time and set it's color and extents } begin if EndDate = 1000000 and LastBarOnChart then begin LRV = LinearRegValue( C, Length, 0 ) ; LRVAgo = LinearRegValue( C, Length, Length - 1 ) ; TLLRV = TL_New( Date[ Length - 1 ], Time[ Length - 1 ], LRVAgo, Date, Time, LRV ) ; Flag = 1 ; end else if Date = EndDate and ( Time = EndTime_HHMM or EndTime_HHMM = 0 ) then begin LRV = LinearRegValue( C, Length, 0 ) ; LRVAgo = LinearRegValue( C, Length, Length - 1 ) ; TLLRV = TL_New( Date[ Length - 1 ], Time[ Length - 1 ], LRVAgo, Date, Time, LRV ) ; Flag = 2 ; end ; if Flag = 1 or Flag = 2 then begin TL_SetColor( TLLRV, Color ) ; TL_SetExtLeft( TLLRV, false ) ; if ExtRight then TL_SetExtRight( TLLRV, true ) else TL_SetExtRight( TLLRV, false ) ; end ; end else if Flag = 1 then { Reset the end-points of the flag-1 LRLine at each new bar after it has been drawn for the first time; this effectively results in a new LRLine each time. } begin LRV = LinearRegValue( C, Length, 0 ) ; LRVAgo = LinearRegValue( C, Length, Length - 1 ) ; TL_SetBegin( TLLRV, Date[ Length - 1 ], Time[ Length - 1 ], LRVAgo ) ; TL_SetEnd( TLLRV, Date, Time, LRV ) ; end ; { ** Copyright (c) 1991-2003 TradeStation Technologies, Inc. All rights reserved. ** ** TradeStation reserves the right to modify or overwrite this analysis technique with each release. ** }