Didn't invent this - so you got me to thinking...(sometimes a dangerous
activity)
I think if you try to use
if(BuySignal) by itself...
you get the message Error 6. or "can't use array here."
The double twist (kludge) seems to gets around that
Best Regards
Rick Osborn
________________________________
From: Yuki Taga <yukit...@tkh.att.ne.jp>
To: Rick Osborn <amibroker@yahoogroups.com>
Sent: Sat, June 12, 2010 6:57:06 PM
Subject: Re: [amibroker] impenetrable AFL
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 <yukit...@tkh.att.ne.jp>
RO> To: amibroker@yahoogroups.com
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>
