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The two formulas appear to give different dates. The first does give
the closing price for 12/30/04 but the second gives the closing price
for 01/03/04 which would be incorrect for year to date figures.
I am also confused as to the +1 and couldn't see how to correct the
line to give the closing '05 price.
DM
--- In amibroker@xxxxxxxxxxxxxxx, "MarketMonk777" <dlittner@xxx> wrote:
>
> Hi Graham,
>
> Thanks, the barssince works. I have added the following lines of code:
>
> BS = BarsSince(Year()!=Ref(Year(),1));
> AddColumn(BS,"BS 1-1-06" , 3.2, colorDarkRed, colorLightGrey );
> YTD = C - Ref( C, -BarsSince(Year()!=Ref(Year(),1))+1);
> AddColumn(YTD,"YTD Net" , 3.2, colorDarkRed, colorLightGrey );
>
> Just to confirm that all works.
>
> I am confused as to the purpose of the +1 that is added at the end
of the
> code in the YTD line.
>
> I was able to research and figure out that != means not equal to. And
> researched how barssince works. And that ref(year(),1) is the way
to catch
> the year changing from 2005 to 2006.
>
> But that +1 has me confused. What is it's purpose?
>
> Dave
>
> -----Original Message-----
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]
On Behalf
> Of Graham
> Sent: Saturday, March 25, 2006 3:47 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Calculating % change since 1/3/2006
>
> you can use valuewhen function to reference a fixed point or ref with
> barssince
> for the close price of end of previous year
>
> valuewhen( year()!=ref(year(),1), C )
>
> or
>
> ref( c, -barssince(year()!=ref(year(),1))+1)
>
>
> --
> Cheers
> Graham
> AB-Write >< Professional AFL Writing Service
> Yes, I write AFL code to your requirements
> http://e-wire.net.au/~eb_kavan/ab_write.htm
>
>
> On 3/26/06, marketmonk777 <dlittner@xxx> wrote:
> > Hi folks,
> >
> > I would like to add a value to my title line and in some of my
> > explorations. The value that I am trying to determine is the % change
> > since the last trading day of 2005 (or should I use 1/3/06?).
> >
> > How do I specify a fixed date in my calculations?
> >
> > Thanks,
> >
> > Dave
> >
> >
> >
> >
> >
> >
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
>
> Yahoo! Groups Links
>
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