Ahh. Ok. In that case you could just use LastValue()...
--- In [email protected], Yuki Taga <yukit...@...> wrote:
>
> Hi Rob,
>
> They appear to be necessary (because you get a complaint about using
> an array in an IF statement without them). But I don't exactly
> understand what is happening. This would *seem* (somehow) to convert
> an array into a Boolean value, which would maybe open up a lot of
> other possible IF statements.
>
> Yuki
>
> Sunday, June 13, 2010, 8:17:00 AM, you wrote:
>
> R> They are circular... and as far as I can see, entirely unnecessary.
>
> R> --- In [email protected], Yuki Taga <yukitaga@> wrote:
> >>
> >> Hi Rick,
> >>
> >> Hey that works for me! Thanks. Can you explain for a non programmer
> >> what the StrToNum and then NumToStr functions are actually doing in
> >> this case? It seems circular to me (convert a string to a number and
> >> then back to a string), so I don't understand what is being
> >> accomplished, or why this is necessary.
> >>
> >> Yuki
> >>
> >> Sunday, June 13, 2010, 5:52:21 AM, you wrote:
> >>
> >> RO> Yuki
> >>
> >> RO> I have the following code which changes the background gradient
> >> RO> color depending on whether a buy or sell signal is given.
> >>
> >> RO> if(StrToNum(NumToStr(BuySignal)))
> >> RO> bgColor = ColorRGB(0,66, 2);
> >> RO> else
> >> RO> bgColor = ColorRGB(66,2, 0);
> >> RO> SetChartBkGradientFill( colorBlack, bgColor);
> >>
> >> RO>
> >> RO> Perhaps you can change this to meet your needs
> >>
> >> RO> Best Regards
> >> RO> Rick Osborn
> >>
> >>
> >>
> >>
> >> RO> ________________________________
> >> RO> From: Yuki Taga <yukitaga@>
> >> RO> To: [email protected]
> >> RO> Sent: Sat, June 12, 2010 1:24:58 AM
> >> RO> Subject: [amibroker] impenetrable AFL
> >>
> >> RO>
> >> RO> Impenetrable! (At least to me.)
> >>
> >> RO> xcolor = IIf(TSI >= SigLine, SetChartBkGradientFill(
> >> RO> ParamColor("BgTop", ColorRGB( 172,172,172 )),
> >> RO> ParamColor("BgBottom", ColorRGB( 172,172,172 ))),
> >> RO> SetChartBkGradientFill( ParamColor("BgTop", ColorRGB(140,140,140)),
> >> RO> ParamColor("BgBottom", ColorRGB(140,140,140))));
> >>
> >> RO> SetChartBkColor(SelectedValue(xcolor));
> >>
> >> RO> I tried that line above as
> >> RO> SetChartBkGradientFill(SelectedValue(xcolor)); but that produced a
> >> RO> syntax error.
> >>
> >> RO> I think you can see what I'm trying to do here. The idea is simple:
> >> RO> change the background gradient depending on a true/false result. The
> >> RO> gradients in this example are not the gradients I would actually use
> >> RO> (in fact they are not gradients at all, as your intelligent eyes will
> >> RO> quickly have seen). They are just test code to see if I can even
> >> RO> make it work. I cannot.
> >>
> >> RO> For one thing, the gradient does not change no matter the selected
> >> RO> value. It's static. For another thing, the margin background goes
> >> RO> to black, a hideous (although somewhat foreseen) result.
> >>
> >> RO> Okay, what am I doing wrong, and where did I miss this in the docs?
> >> RO> And what, if anything, can I do about this margin result? The only
> >> RO> way I can change the *entire* background color is by not using a
> >> RO> gradient??? (Using SetChartBkColor) How sad that would be! I can
> >> RO> make that work, at least. But not with a gradient.
> >>
> >> RO> Anything is possible in Amibroker, right?
> >>
> >> RO> Wrong?
> >>
> >> RO> Thanks,
> >>
> >> RO> Yuki
> >>
> >>
> >> RO>
> >>
>
