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Tomasz- Even though you've kindly pointed out information on the
selectedvalue function, I don't understand the connection between
writeif and selectedvalue because, for example, if you do an
exploration with:
Filter=1;
AddColumn(RSI(9),"RSI9");
AddColumn(SelectedValue(RSI(9)),"SRSI9");
The first column contains "live" values (that change bar-by-bar) and
the second does not. Since writeif was not contained in the
selectedvalue function when I used it, why are its values the last of
the data range (as if it was in the selectedvalue function)?
Unfortunately, I don't have the luxury of keeping up with all the
messages in this forum. Therefore I must rely primarily on the user's
guide and there is nothing about this in the explanation of the
writeif function.
Thanks,
Mark
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> For Texts WriteIf should be used.
>
> Also as I explained many times on this list WriteIf( condition,
truetext, falsetext ) function
> returns SINGLE string representing the condition at 'selected bar'.
>
> For more information on this read:
> http://www.amibroker.com/guide/afl/afl_view.php?name=SELECTEDVALUE
>
> Therefore text columns in explorations always represent the value
> at the LAST BAR of selected exploration range.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "markf2" <feierstein@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Tuesday, May 13, 2003 3:43 PM
> Subject: [amibroker] Re: Exploration Help Please
>
>
> > Graham, thanks, but tried that and got a "bad arguments" message.
> > Apparently iif cannot be used with text.
> >
> > Mark
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Graham" <gkavanagh@xxxx> wrote:
> > > Sorry I did not know whatif did not work in addtextcolumn
> > >
> > > This may work better
> > > level=iif(C > 25,"Hi","Lo");
> > >
> > > Cheers,
> > > Graham
> > > http://groups.msn.com/ASXShareTrading
> > > http://groups.msn.com/FMSAustralia
> > >
> > > -----Original Message-----
> > > From: markf2 [mailto:feierstein@x...]
> > > Sent: Tuesday, 13 May 2003 9:20 PM
> > > To: amibroker@xxxxxxxxxxxxxxx
> > > Subject: [amibroker] Re: Exploration Help Please
> > >
> > > Graham- Your logic for what I want to accomplish is good, but which
> > > functions to use and how to use them is the problem. For
example, to
> > > add a column with text you must use AddTextColumn. But WriteIf
gives
> > > error messages when inside it. So I tried this as simple test code:
> > >
> > > level=WriteIf(C > 25,"Hi","Lo");
> > > Filter=1;
> > > AddColumn(C, "C", 1.4 );
> > > AddTextColumn(level,"Close Level");
> > >
> > > Unfortunately this always returns "Hi", even if C<=25. I think the
> > > issue is how to insert a string into AddTextColumn that varies based
> > > on a condition, but nothing I've tried works. Any more ideas?
Thanks
> > > for your efforts, BTW.
> > >
> > > Mark
> > >
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "Graham" <gkavanagh@xxxx> wrote:
> > > > Do you mean something like
> > > > EnterLong = flip(buy,sell);
> > > > ExitLong = flip(sell,buy);
> > > > Entershort = flip(short,cover);
> > > > ExitShort = flip(cover,short);
> > > >
> > >
> >
Addcolumn(writeif(EnterLong,"long",writeif(ExitLong,"out",writeif(EnterShort
> > > > ,"short",writeif(ExitShort,"out")))),"trade");
> > > >
> > > > Don't know if it works, but could be something to start with,
if it
> > > workds
> > > > that is
> > > >
> > > > Cheers,
> > > > Graham
> > > > http://groups.msn.com/ASXShareTrading
> > > > http://groups.msn.com/FMSAustralia
> > > >
> > > > -----Original Message-----
> > > > From: markf2 [mailto:feierstein@x...]
> > > > Sent: Tuesday, 13 May 2003 8:16 PM
> > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > Subject: [amibroker] Exploration Help Please
> > > >
> > > > Hello Everyone,Is it possible to to add a column of text to an
> > > > exploration that indicates whether a trading system is long,
short, or
> > > > out of the market? Specifically, I need to add a column that
specifies
> > > > "Long" or "Short" (depending on which is the case) beginning
with the
> > > > bar of entry, through and including the bar before the bar of
exit,
> > > > then "Out" beginning with the exit bar and continuing for all
bars the
> > > > system's not in the market, etc. I'd like to do this directly
with
> > > > whatever array(s)track this info, because inferring it through the
> > > > relationship between the equity function and prices doesn't always
> > > > work (for example, problems with lag if exiting with a delay).
Thanks.
> > > > Mark
> > > >
> > > >
> > > >
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