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Thank you Tomasz. Evidently the restriction
only applies if you expect to plot the data directly as price bars.
HHP
====================
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Tomasz Janeczko
To: <A
href=""
title=amibroker@xxxxxxxxxxxxxxx>amibroker@xxxxxxxxxxxxxxx
Sent: 27 December, 2003 8:59 AM
Subject: Re: [amibroker] Nonsense Numbers
for data fields
Hello,
It checks only when using Database Purify tool or when you
are importing data from ASCII files and $STRICT/$ALLOWNEG
modes are off.
Best regards,Tomasz Janeczkoamibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
harveyhp
To: <A
href=""
title=amibroker@xxxxxxxxxxxxxxx>amibroker@xxxxxxxxxxxxxxx
Sent: Saturday, December 27, 2003 5:13
PM
Subject: Re: [amibroker] Nonsense
Numbers for data fields
Does AB check the consistency of OHLC
relationships on an ongoing basis, or only when using the Database Purify
tool? I ask because in Herman van den Bergen's very
helpful "Introduction to the AmiBroker AddTocomposite()" tutorial, he
advises (p.10: Which Field to use in your ATC?) "The OHLC fields have
certain mathematical relationships that restrict their use and prohibit you
from putting random numbers in all fields", and advises the use of the "X"
field designator. On this list I have seen (and borrowed) examples
which violate this, such as NH, NL assigned to "O", "C", and Adv, Dec
assigned to "H", "L". AmiBroker accepts them and runs without
complaint.
HHP
==================
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Dave Merrill
To: <A
href=""
title=amibroker@xxxxxxxxxxxxxxx>amibroker@xxxxxxxxxxxxxxx
Sent: 25 December, 2003 2:26 PM
Subject: RE: [amibroker] Nonsense
Numbers for data fields
<SPAN
class=776302322-25122003>I haven't done this myself, but I think there's a
flag you can use in an import format definition file that disables this
checking. From the Ascii Import docs:
<SPAN
class=776302322-25122003>
<SPAN
class=776302322-25122003>===============
<FONT
face=Arial>$ALLOWNEG Allow negative numbers in
prices.
<FONT
face=Arial>0 - do not allow negative values (default), 1 - allow negative
values in prices. This additionally switches off any checking for OHLC
relationship so you can import any data into OHLC
fields.
<FONT
face=Arial>when $ALLOWNEG is NOT specified in the ASCII importer
definition AmiBroker performs the following range checking and fixup on
open, low and high pricesif( open == 0 ) open = close;if( high
< max( open, close ) ) high = max( open, close );if( low == 0 ) low
= min( open, close )
<SPAN
class=776302322-25122003>===============
<FONT
face=Arial>Dave
<SPAN
class=776302322-25122003>
<SPAN
class=776302322-25122003>
I would like to make 2 artificial data series that will
not be logical or ."checkable" to any OHLCV sequence. That is to say,
there will be zeros which are logical values in my scheme that may fall
in any location, and the relative value of one value to another is
strictly nonsensical. In other words, I would like to turn off the usual
data "checking" schemes while I utilize my "synthetic stocks'
value"I have spent a full day attempting to fool the present
checking schemes, without success.Is there a way that the
logical OHLC checking scheme can be turned off, and on, to allow this
type of data to be acceptable & loaded? My experience is that
"nonsense" data cannot be loaded by any trickery to be handled by the
wizard or the ASCII loader and be stored in the database. I would like
to negate that logic at the users discretion.All suggestions
would be appreciated. May your Christmas season be the wondrous,
beautiful, meaningful time it is intended to be. Best Regards,
Hal Send BUG REPORTS to
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