Re: [amibroker] Number of Days between dates

["Tomasz Janeczko" <amibroker@xxxxxx>]

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@xxxxxxxxx>
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
> 
> 
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