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Re: [amibroker] The "TimeFrameGetPrice" function is FALSE !!!!!



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Dear Khamsina,
 
You don't understand:
TimeFrame functions compress CURRENT timeframe (in your case WEEKLY) into
selected time frame (in your case MONTHLY).
In most cases MONTHS do NOT end and week boundary therefore one can not compress
weekly data to monhtly bars.
 
The only correct usage is to compress DAILY to WEEKLY and DAILY to MONTHLY.

Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: Khamsina11
Sent: Sunday, June 19, 2005 1:05 AM
Subject: Re: [amibroker] The "TimeFrameGetPrice" function is FALSE !!!!!


Hi Graham,

Ok, I'am going to check.

But try that :

Display a weekly chart, pick randomly a candlestick and open the commentary : the results do not match up.
You can select other candlesticks in your weekly chart, the figures are never the same.

It is to be feared that there is a big bug somewhere.

Regards,
Khamsina





Graham a écrit :
I have used and checked the function against daily charts and it is correct
Try checking against the monthly chart and the getprice is correct

On 6/19/05, Khamsina11 <Khamsina11@xxxxxxxx> wrote:
  
Graham,

I both used "ExpandFirst" and "ExpandLast" but the results do not match up.

You can do it, it's very easy to check

I hope I am wrong otherwise there is no use using multiple time frame
analysis with Amibroker. 


Regards,
Khamsina




Graham a écrit : 
It could be that you are using expandfirst which will change the close
    
price
  
each bar as it progresses through the month. From help
    
"Caveat: expandFirst
  
used on price different than open may look into
    
the future. For example if
  
you create weekly HIGH series, expanding it
    
to daily interval using
  
expandFirst will enable you to know on MONDAY
    
what was the high for entire
  
week. "
    





On 6/19/05, Khamsina11 <Khamsina11@xxxxxxxx> wrote:
 
  
Hi,
    

I wrote this code in a commentary :

va1 = TimeFrameGetPrice( "C",
  
inMonthly, -7, expandFirst );
    
" Month - 7 = " + WriteVal( va1, 0.2);

In
  
order to check if everything was ok, I tiled vertically 2 windows (a
    
weekly
  
graph and a monthly graph).
    

In the weekly window, I randomly displaced the
  
vertical selection line
    
while checking if the close returned in the
  
commentary and the close of
    
the appropriate month ( in the monthy graph)
  
were the same : and what a
    
surprize, they are different !!!!!!

Is TJ aware
  
of this big issue
?
    


Khamsina











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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:
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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





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