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<http://groups.yahoo.com/group/amibroker/message/49504>Message 49504 -
amibroker YahooGroup
From:
<mk:@MSITStore:E:\Folio.sentinal\AmiBroker%20help\ForumPosts\AmiBroker03D.chm::/ymsgr:sendIM?amibroker>
13d6cb6.jpg
"Tomasz Janeczko"
<<mk:@MSITStore:E:\Folio.sentinal\AmiBroker%20help\ForumPosts\AmiBroker03D.chm:://group/amibroker/post?postID=2B_UrvrLdsgQCq3rmID2mqrxosrQ1hIUed_FbGY8ncBPJwM6OQlNlZpbf9qmVTD42w1uRjN375Bi6vg>amibroker@xxxxxx>
Date: Fri Oct 10, 2003 3:48 pm
Subject: Re: [amibroker] sublimely naive? Manual Stock Sorting.
Michael,
For the same reason: there are NO arrays of strings in AFL. All string
functions / arithmetic
give you SINGLE string (not array of strings).
To achieve what you want you would need to use NUMERIC column:
AddColumn( Status("stocknum") * 1000 + BarIndex(), "sortcol" );
Best regards,
Tomasz Janeczko
amibroker.com
At 02:33 PM 21/02/2004, you wrote:
>You could try using Osaka plugin for your sorting
>
>Cheers,
>Graham
><http://e-wire.net.au/~eb_kavan/>http://e-wire.net.au/~eb_kavan/
>-----Original Message-----
>From: Herman van den Bergen [mailto:psytek@xxxxxxxx]
>Sent: Saturday, 21 February 2004 10:50 AM
>To: amibroker@xxxxxxxxxxxxxxx
>Subject: RE: [amibroker] Can anyone help me Sort this out....
>
>You could convert DateNum() to a DateIndex which will be a much smaller
>number. You would have to pick a first date for zero, your reference, or
>count backwards from today... depend on your application.
>
>The DateIndex would simply be the number of bars before a given point. For
>10 years you should have a maximum count of about 10*250=2500 which is
>much smaller than you datenum.
>
>Interesting problem,
>good luck,
>herman.
>-----Original Message-----
>From: Michael.S.G. [mailto:OzFalcon@xxxxxxxx]
>Sent: Friday, February 20, 2004 8:45 PM
>To: amibroker@xxxxxxxxxxxxxxx
>Subject: [amibroker] Can anyone help me Sort this out....
>
>Has anyone yet got around the DateNum() / 32 bit float limitation yet?
>
>This is a real Turd of a problem - And I'd like to know if there are any
>workarounds/solutions?
>
>For me - I wish to Transform DateNum() to a Ranking system I can sort
>under AA.
>
>But two limitations are stoping me.
>1) The use of Strings in AB appears to be as single variables. (Not Arrays).
>2) Transforming the value from DateNum creates a number greater than 7
>significant digits. Inducing the 32bit Float limitation.
>
>For those unaware of the above constrictions, Here is a sample AFL to show
>you.
>
>// Combined Sort for AA.
>//
>// Filter = "Curent Stock"
>//
>// Range = "All Quotes"
>
>// Create a Date/Rank to Sort with.
>//
>// Doesn't work (Strings can not be arrays?)
>SortStr = "" + Year() + "/" + Month() + "/" + Day() + ":" + Close;
>//
>// Doesn't work (Larger than 7 digits - 32bit Float)
>SortVar = (DateNum()*100) + Close;
>
>
>AddColumn(Close,"Close",1.2);
>AddTextColumn(SortStr,"SortStr",1.2);
>AddColumn(SortVar,"SortVar",1.2);
>
>//Filter
>Filter = 1;
>
>
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