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Tomasz,
Well, it didn't take long until I ran into my next roadblock. Here is
the code:
-----------
Period = EndValue( BarIndex() ) - BeginValue( BarIndex() )+1;
PerChange = WriteVal(100*(EndValue(Close)-BeginValue
(Close))/BeginValue(Close));
Title ="Percentagechange of close is " + PerChange + "%, \nStandard
Deviation over the period is "+ EndValue( StDev( Close, Period ) ) ;
----------------
When I apply it, I get an error indication at the last semicolon in
the Title statement.
Now, another question and this is based on an interpretation of the
Period calculation in line 1. Is the appropriate value to use the
difference between the bar indexes or the difference plus 1 to use
all the bars in the range. It seems to me that the appropriate on
depends on how the barindex function is constructed.
Thanks
Bill
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> I have added the sample codes to:
>
> http://www.amibroker.com/guide/afl/afl_view.php?name=BEGINVALUE
>
> and
>
> http://www.amibroker.com/guide/afl/afl_view.php?name=ENDVALUE
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: <wbarack@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Sunday, February 16, 2003 5:28 PM
> Subject: [amibroker] Number of Days between dates
>
>
> > I am trying out 4.29.1 and its wonderful new functions that let
me
> > select a from-to range on a price plot. Thanks Tomasz. Great
addition.
> >
> > What I want to do is calculate a standard deviation over the
selected
> > range. While the example for "percentage change" in price that is
> > included withe download works great, the standard deviation
function,
> > like many others, wants to know the period to be calcated over.
> >
> > StDev(array, period);
> >
> > So I am trying to find the period as follows:
> >
> > Range (or period) = EndValue(Datetime())-BeginValues(DateTime());
> >
> > however, this expression and the variants of it that I have tried
> > results in error messages when I try to write the value of StDev
in a
> > Title expression.
> >
> > I'm sure I messing up formats or something similar and I cannot
find
> > the Help descriptions that will get me out of my dilema.
> >
> > Long winded, but the basic question is: "How do I find the range
> > in "bars" for a given From-to range such that I can use it in
> > functions like StDev?"
> >
> > Second associated question: "How do I direct the Title function
to
> > execute a carriage return?"
> >
> > Thanks
> >
> > Bill
> >
> >
> > Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
> > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> >
> > Check group FAQ at:
http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
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