【价格通道(Price Channel)】
[code]inputs: Length( 20 ), Displace( 0 ) ;variables: var0( 0 ), var1( 0 ) ;
var0 = Lowest( Low, Length )[1] ;
var1 = Highest( High, Length )[1] ;
condition1 = Displace >= 0 or CurrentBar > AbsValue( Displace ) ;
if condition1 then
begin
Plot1[Displace]( var1, "UpperBand" ) ;
Plot2[Displace]( var0, "LowerBand" ) ;
if Displace <= 0 then
begin
condition1 = Low crosses under var0 ;
if condition1 then
Alert( "Price making new low" ) ;
condition1 = High crosses over var1 ;
if condition1 then
Alert( "Price making new high" ) ;
end ;
end ;
[/code]
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