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Hello,
Just follow up --- if you want to use if-else you have to
convert ARRAY to just a number.There are many ways to do that. One of
possibilities is using LastValue function:
f = Foreign<FONT
face="Courier New" size=1>(<FONT face="Courier New" color=#ff00ff
size=1>"MSFT<FONT face="Courier New"
color=#ff00ff size=1>",<FONT
face="Courier New" color=#ff00ff size=1>"C"<FONT face="Courier New"
size=1>);
if( <FONT color=#0000ff
size=1>L<FONT face="Courier New" color=#0000ff
size=1>astValue(
IsNull( f ) <FONT
face="Courier New" size=1>) )
{
result = "No such
symbol";
}
else
{
result = "symbol
exists";
}<FONT face="Courier New"
size=1>
result;
Best regards,Tomasz Janeczkoamibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Tomasz Janeczko
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Wednesday, April 30, 2003 4:29
PM
Subject: Re: [amibroker] Re: How to
detect if 'foreign' is successful or not ?
Salil,
The code has syntax error.
Foreign returns array. IsEmpty from ARRAY is also
ARRAY.
You can not use ARRAYS in conjunction with if because it
requires
single value (it has to decide YES or NO whenever one
or other execution path
should be choosen - and ARRAY has multiple
values)
BTW: you are using OLD version of the program because
newer
one would give you appropriate ERROR MESSAGE in this
case.
Best regards,Tomasz Janeczkoamibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Salil V
Gangal
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Wednesday, April 30, 2003 4:24
PM
Subject: RE: [amibroker] Re: How to
detect if 'foreign' is successful or not ?
Chuck,
Nope ... this technique was
not 'successful' when I tried. Code I
used in 'Guru' was ===>
x = <FONT
color=#0000ff size=1>IsEmpty<FONT color=#000000
size=1>(Foreign<FONT
color=#000000 size=1>("<FONT
color=#ff00ff size=1>MSFT"<FONT
color=#000000 size=1>,<FONT color=#ff00ff
size=1>"Close",fixup=<FONT
color=#ff00ff size=1>1<FONT color=#000000
size=1>));
if (x) {
message = <FONT
face=courier color=#ff00ff size=1>"x is true"<FONT color=#000000
size=1>;
}
else {
message = <FONT
face=courier color=#ff00ff size=1>"x is false"<FONT color=#000000
size=1>;
}
message;<FONT color=#000000
size=1>
x = <FONT
color=#0000ff size=1>IsEmpty<FONT color=#000000
size=1>(Foreign<FONT
color=#000000 size=1>("<FONT
color=#ff00ff size=1>Non_existant_ticker<FONT color=#ff00ff
size=1>",<FONT color=#ff00ff
size=1>"Close",fixup=<FONT
color=#ff00ff size=1>1<FONT color=#000000
size=1>));
i<FONT
face=courier>f (x) {
message = <FONT
face=courier color=#ff00ff size=1>"x is true"<FONT color=#000000
size=1>;
}
else {
message = <FONT
face=courier color=#ff00ff size=1>"x is false"<FONT color=#000000
size=1>;
}
message;
Regards,
- Salil V
GangalSalil V Gangal
<salil_gangal@xxxxxxxxx> wrote:
<BLOCKQUOTE
>
Chuck,
If you get a chance, try the example I gave in
'Guru'. Use one of the tickers that exists in the database
and one that does not. Please let me know if this technique is
'successful' (!) or not.
Regards,
- Salil V
GangalChuck Rademacher
<chuck_rademacher@xxxxxxxxxx> wrote:
<BLOCKQUOTE
>
<FONT face=Arial color=#0000ff
size=2>Why can't you just say:
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>x =
IsEmpty(Foreign("Symbol","Close",fixup=1));
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>This should work if your Foreign instrument has no
holes and the date range is the same or longer than the stock you are
evaluating at the time.
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>Works for me... unless I don't understand the
question.Send BUG REPORTS to
bugs@xxxxxxxxxxxxxSend SUGGESTIONS to
suggest@xxxxxxxxxxxxx-----------------------------------------Post
AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx (Web
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href="">http://groups.yahoo.com/group/amiquote/messages/)--------------------------------------------Check
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Your use of Yahoo! Groups is subject to the <A
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Service.
Do you Yahoo!?<A
href="">The
New Yahoo! Search - Faster. Easier. Bingo. Send BUG
REPORTS to bugs@xxxxxxxxxxxxxSend SUGGESTIONS to
suggest@xxxxxxxxxxxxx-----------------------------------------Post
AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx (Web page:
<A
href="">http://groups.yahoo.com/group/amiquote/messages/)--------------------------------------------Check
group FAQ at: <A
href="">http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Your use of Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of Service.
Do you Yahoo!?<A
href="">The
New Yahoo! Search - Faster. Easier. Bingo. Send BUG REPORTS
to bugs@xxxxxxxxxxxxxSend SUGGESTIONS to
suggest@xxxxxxxxxxxxx-----------------------------------------Post
AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx (Web page:
<A
href="">http://groups.yahoo.com/group/amiquote/messages/)--------------------------------------------Check
group FAQ at: <A
href="">http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Your use of Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of Service.
Send
BUG REPORTS to bugs@xxxxxxxxxxxxxSend SUGGESTIONS to
suggest@xxxxxxxxxxxxx-----------------------------------------Post
AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx (Web page: <A
href="">http://groups.yahoo.com/group/amiquote/messages/)--------------------------------------------Check
group FAQ at: <A
href="">http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Your use of Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of Service.
Yahoo! Groups Sponsor
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
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 the Yahoo! Terms of Service.
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