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Dave,
The logic is very simple. As in C/C++ each assignment
statement in AFL has a VALUE.
This nice feature allows statements like this:
a = b = c = 1;
(assign 1 to a, b, and c variables at once )
which is NOT possible in other languages like Pascal, Basic,
etc.
This allows also to make assignments inside conditional
expressions
_N( tickerlist =
"INTC,MSFT,AAPL"
);
p = 0<FONT
face="Courier New">;
for( i = <FONT face="Courier New"
color=#ff00ff>0; ( ticker = <FONT
face="Courier New" color=#0000ff>StrExtract<FONT
face="Courier New">(tickerlist, i ) ) != <FONT face="Courier New"
color=#ff00ff>""; i++ ) // assignment inside
for-condition{ p = p +
Foreign<FONT
face="Courier New">( ticker, <FONT face="Courier New"
color=#ff00ff>"C"
);}
The value of text assignment is text itself.
Variable = "Text";
statement has a string value of "Text" and that's why it is
displayed by default.
This is the same as you would write:
"Text";
You can easily change this behaviour by using
EnableTextOutput( False );
Best regards,Tomasz Janeczkoamibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Dave Merrill
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Thursday, August 21, 2003 4:12
PM
Subject: RE: [amibroker] quoted text from
variable assignments showing up in interpretation???
<FONT face="Courier New" color=#0000ff
size=2>thanks, haven't tried it yet, but you've called my attention to what
looks like one way to do this. I also found EnableTextOutput, which should
also work.
<FONT face="Courier New" color=#0000ff
size=2>
<FONT face="Courier New" color=#0000ff
size=2>I had missed the fundamental fact that quoted text, even on
the right-hand side of an expression, goes to the interpretation window. this
is deeply strange to me. I can see the idea that simply outputting some text
in the middle of code causes it to appear in the interpretation. for example,
you could include the line
<FONT face="Courier New" color=#0000ff
size=2> Name();
<FONT face="Courier New" color=#0000ff
size=2>...to output the current ticker. still, I'm intuitively mystified that
text contained within an expression, and not in a statement that itself
evaluates as text, still shows. it's hard for me to understand why this is
desirable behavior. it seems more natural that you'd get output only from
statements that evaluate as text. but I can cope (:-).
<FONT face="Courier New" color=#0000ff
size=2>
<FONT face="Courier New" color=#0000ff
size=2>also, output only happens in some cases; this line:
<FONT face="Courier New" color=#0000ff
size=2> IndexPrice = Foreign(IndexTicker,
"C")
<FONT face="Courier New" color=#0000ff
size=2>...doesn't output the "C". there must be some logic here that escapes
me, but again, I can cope.
<FONT face="Courier New" color=#0000ff
size=2>
<FONT face="Courier New" color=#0000ff
size=2>anyway, so be it, that's how it is, and I think I understand how to
work with it.
<FONT face="Courier New" color=#0000ff
size=2>
<FONT face="Courier New" color=#0000ff
size=2>thanks for the steer,
<FONT face="Courier New" color=#0000ff
size=2>
<FONT face="Courier New" color=#0000ff
size=2>dave
<FONT face="Courier New" color=#0000ff
size=2>
<BLOCKQUOTE
>
I
believe you can write the line as this;
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>_N(IndexTicker = "VFINX");
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>This will stop the printing of the text.
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>Paul.
working on a series of charts
with interpretations, it appears that quotedtext from assignments made
in the charting code appears in theinterpretation area.for
example, the following is used before the '//--Indicator-End—',
sinceit's part of the charting code:---------------IndexTicker
= "VFINX";IndexPrice = Foreign(IndexTicker,
"C"); [other code that uses the variable
IndexTicker]---------------for some reason, the string "VFINX"
(no quotes) shows up in theinterpretation. how can I make a string
assignment without this happening?thanks,Dave
MerrillSend
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