[Metastockusers] DaysSince function

["Jose Silva" <josesilva22@xxxxxxxxx>]

Ever wanted a BarsSince() function that counts calendar days (instead 
of data bars) from the last Nth event (not just the last one)?

This DaysSince indicator is similar to the BarsSince() function: it 
plots calendar day count since the last Nth event occurrence, and the 
calendar day count is independent of any chart periodicity or missing 
data.


MetaStock -> Tools -> Indicator Builder -> New ->
Copy and paste complete formula between "---8<---" lines.

=========
DaysSince
=========
---8<--------------------------

{ DaysSince last Nth event function }
{ Calendar day count is independent of
   any chart periodicity or missing data.}

{ ©Copyright 2003~2005 Jose Silva
  The grant of this license is for personal use
  only - no resale or repackaging allowed.
  All code remains the property of Jose Silva.
  http://www.metastocktools.com }

{ User Inputs }
nth:=Input("Calendar days since Nth [1~1000] event",1,1000,1);
plot:=Input("[1]DaysSince,  [2]EventSignals,  [3]DayCount",1,3,1);
limit:=Input("Zero reset calendar days from year",1,2100,2000);

{ Event example }
event:=Cross(Mov(C,5,E),Mov(C,20,E));

{ Gregorian calendar }
LimLeap:=Frac(limit/4)=0 AND Frac(limit/100)<>0
 OR Frac(limit/400)=0;
NoCount:=limit*365+Int(limit/4)
 -Int(limit/100)+Int(limit/400)-LimLeap;
leap:=Frac(Year()/4)=0 AND Frac(Year()/100)<>0
 OR Frac(Year()/400)=0;
y:=Year()*365+Int(Year()/4)
 -Int(Year()/100)+Int(Year()/400)-NoCount;
m:=
 If(Month()=2,31-leap,
 If(Month()=3,59,
 If(Month()=4,90,
 If(Month()=5,120,
 If(Month()=6,151,
 If(Month()=7,181,
 If(Month()=8,212,
 If(Month()=9,243,
 If(Month()=10,273,
 If(Month()=11,304,
 If(Month()=12,334,
 -leap)))))))))));
DayNr:=y+m+DayOfMonth();

{ Restrict Nth to max events }
nth:=
 LastValue(If(nth>Cum(event),Cum(event),nth));

{ Days since Nth event }
DaysSince:=DayNr-ValueWhen(nth,event,DayNr);

{ Plot in own window }
If(plot=1,DaysSince,If(plot=2,event,DayNr))

---8<--------------------------


jose '-)
http://www.metastocktools.com








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