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I have been using AB for nearly 3 years I think.
It took about 3 months initially as I had never programmed a chart package
like this before to become proficient enough to proceed past simple
formulae. But then 3 years ago there was a lot less to learn :)
I started simple to learn how to put codes together by just learning basic
tasks and using simple built in indicators. Once I understood basic
explore/scan/backtest and chart codes I then started with making my own more
complex codes.
A big suggestion to all starters, do not try to do complex codes or
functions. Keep it Simple!
Cheers,
Graham
http://e-wire.net.au/~eb_kavan/
-----Original Message-----
From: Quad Rate Serial Abby [mailto:quad_pumped_abby@xxxxxxxxx]
Sent: Wednesday, December 22, 2004 7:51 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: Previous close prices on n = -1 MACD cross?
Thanks Graham. I see the answer was obvious for you too. Thanks a
lot for your help. How long did it take you to become proficient in
AFL? I'm reading as much as I can but it is still confusing. At
least I used to be somewhat adept at FORTRAN, which probably helps
me understand the flow structure better than someone with no
previous programming experience, but I'm still pretty much lost.
--- In amibroker@xxxxxxxxxxxxxxx, "Graham" <gkavanagh@xxxx> wrote:
> Hope this helps
>
> M_LINE = MACD(RET_1, RET_2);
> S_LINE = Signal(RET_1, RET_2, RET_3);
>
> PRES_CROSS = Cross(M_LINE, S_LINE);
> //PREV_CROSS = Cross(M_LINE, S_LINE);
>
>
> PREV_CLOSE = ValueWhen(Cross(M_LINE, S_LINE), C, 2);//added comma
and
> changed 1 to 2 as the 1 will be last cross (present)
>
> Cheers,
> Graham
> http://e-wire.net.au/~eb_kavan/
>
> -----Original Message-----
> From: Quad Rate Serial Abby [mailto:quad_pumped_abby@x...]
> Sent: Wednesday, December 22, 2004 6:58 AM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Previous close prices on n = -1 MACD cross?
>
>
>
> I am trying to write code that will return the closing price on
the
> date of the last cross of the signal line by the MACD line prior
to
> a cross of the same type occuring today. I have a selectio of
code
> here, but am getting a syntax error trying to use the ValueWhen
> function. Does anybody see anything wrong with this? TIA.
>
> RET_1 = Prefs( 11 );
> RET_2 = Prefs( 12 );
> RET_3 = Prefs( 13 );
>
> M_LINE = MACD(RET_1, RET_2);
> S_LINE = Signal(RET_1, RET_2, RET_3);
>
> PRES_CROSS = Cross(M_LINE, S_lINE);
> PREV_CROSS = Ref(Cross(M_LINE, S_LINE), -1);
>
> PREV_CLOSE = ValueWhen(Ref(Cross(M_LINE, S_LINE), -1) C, 1);
>
>
>
>
>
>
> Check AmiBroker web page at:
> http://www.amibroker.com/
>
> Check group FAQ at:
> http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> Yahoo! Groups Links
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