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Graham:
I've noticed you and lots of other folks on this board seemingly
unnecessarily use the iif statement a lot, as in your Rise and Fall code lines
below. Yet, isn't it just as correct and less code (i.e., more efficient) to
simply write:
Rise = H>Ref(H,-1) AND L>Ref(L,-1);
Just curious why people use iif so much. Thanks.
Al Venosa
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=gkavanagh@xxxxxxxxxxxxx
href="">Graham
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Thursday, July 17, 2003 3:10
AM
Subject: RE: [amibroker] lower highs,
lower lows
I recently posted an
indicator which could be roughly what you are looking for, at least for the
trend identifiaction. I will post another version of what I am doing, and see
if it can be modified to get what you want
Can't remember which one
I posted, but here is latest of this particular strain of my
fumblings
//INDICATOR C 2
//Momentum
//by Graham Kavanagh 09 June 2003
Period1 = 40<FONT
size=2>;
Period2 = 20<FONT
size=2>;
Period3 = 5<FONT
size=2>;
Rise = IIf<FONT
size=2>(H<FONT
size=2>>Ref<FONT
size=2>(H<FONT
size=2>,-1)
AND
L<FONT
size=2>>Ref<FONT
size=2>(L<FONT
size=2>,-1<FONT
size=2>),1<FONT
size=2>,0);
Fall = IIf<FONT
size=2>(H<FONT
size=2><Ref<FONT
size=2>(H<FONT
size=2>,-1)
AND
L<FONT
size=2><Ref<FONT
size=2>(L<FONT
size=2>,-1<FONT
size=2>),1<FONT
size=2>,0);
CountRise = Sum<FONT
size=2>(Rise,Period1);
CountFall = Sum<FONT
size=2>(Fall,Period1);
IndC = (CountRise-CountFall)/Period1*<FONT color=#ff00ff
size=2>100;
MAIndC = DEMA<FONT
size=2>(IndC,Period2);
Trigger = EMA<FONT
size=2>(MAIndC,Period3);
Strengthup = MAindc - <FONT color=#0000ff
size=2>ValueWhen(<FONT color=#0000ff
size=2>Cross(maindc,trigger),MAindc);
Strengthdn = MAindc - <FONT color=#0000ff
size=2>ValueWhen(<FONT color=#0000ff
size=2>Cross(trigger,maindc),MAindc);
Strength = DEMA<FONT
size=2>( (strengthup+strengthdn), period2 );
MAstrength = EMA<FONT
size=2>(Strength,5<FONT
size=2>);
GraphXSpace = <FONT color=#ff00ff
size=2>2;
mycolor=IIf<FONT
size=2>(MAIndC>Trigger, <FONT color=#ff0000
size=2>colorGreen, <FONT color=#0000ff
size=2>IIf(MAIndC<Trigger,<FONT
color=#ff0000 size=2>colorRed,<FONT
color=#ff0000 size=2>colorBlack));<FONT
color=#ff0000 size=2>
Title =<FONT color=#0000ff
size=2>EncodeColor(<FONT color=#0000ff
size=2>SelectedValue(mycolor)) + <FONT
color=#0000ff size=2>Name() + <FONT
color=#8b0000 size=2>" " + <FONT
color=#0000ff size=2>Date() + <FONT
color=#8b0000 size=2>" Ind C2 Trend Strength: Higher Highs & Lows - Lower
Highs & Lows: "+<FONT color=#0000ff
size=2>WriteVal(period1,<FONT color=#ff00ff
size=2>1)+<FONT color=#8b0000
size=2>"/"+<FONT color=#0000ff
size=2>WriteVal(period1,<FONT color=#ff00ff
size=2>2)+<FONT color=#8b0000
size=2>"/"+<FONT color=#0000ff
size=2>WriteVal(period3,<FONT color=#ff00ff
size=2>1);
Plot( strength, <FONT color=#0000ff
size=2>EncodeColor(<FONT color=#ff0000
size=2>colorGreen)+<FONT color=#8b0000
size=2>" trend Strength ", <FONT
color=#ff0000 size=2>colorGreen, <FONT
color=#ff0000 size=2>styleLine+<FONT
color=#ff0000 size=2>styleNoLabel);<FONT
color=#0000ff size=2>
Plot( mastrength, <FONT color=#0000ff
size=2>EncodeColor(<FONT color=#ff0000
size=2>colorRed)+<FONT color=#8b0000
size=2>" MA Strength ", <FONT color=#ff0000
size=2>colorRed, <FONT color=#ff0000
size=2>styleLine+<FONT color=#ff0000
size=2>styleNoLabel);
<o:SmartTagType name="PersonName"
namespaceuri="urn:schemas-microsoft-com:office:smarttags">
<B
><I
><SPAN
>Cheers<SPAN
class=GramE>,<st1:PersonName
><B
><I
><SPAN
>Graham
<A
href=""><SPAN
><FONT
color=#008080>http://groups.msn.com/ASXShareTrading
<A
href=""><FONT
color=#008080>http://groups.msn.com/FMSAustralia
<FONT
face=Tahoma size=2>-----Original Message-----From: mrdavis9
[mailto:mrdavis9@xxxxxxxxxx] Sent: Thursday, 17 July 2003 2:52
PMTo: amibrokeryahoogroupsCc: jeff
davisSubject: [amibroker] lower highs, lower
lows
A lot of traders are expecting the
markets to turn down any day now, so I made an CRUDE AA scan that
is designed to find stocks that have been trending
up for awhile, but which have recently started trending
down. Although I have posted the code below, I
am not looking for suggestions for improving this CRUDE
scan. I am still struggling with AFL, so I am not yet able to
create the AA scan that will look for exactly the conditions that I want to
scan for. I really want a scan that will find
those symbols that meet the Weinstein definition of the ending
of an uptrend and the entering of a downtrend. I am aware that
DT is a little suspicious of Weinstein because he wears a ring on his
pinkie. It bothers me a little also, but at least he doesn't
wear a ring in his nose, at least not yet, as far as I know .
I am thinking that a lot of Amibroker users would like to have a scan
which will find the conditions which are necessary for finding a
Weinstein change from uptrend to downtrend. My understanding of
Weinstein trends is that after a series of higher highs and higher lows, we
suddenly see a lower low, then we need to be worried. After the
appearance of this first lower low, we need to keep watching till the next
high occurs. If this next high is lower than the previous high, then
we are officially in a Weinstein downtrend. The attached chart
that resulted from my CRUDE coding is approximately the kind of results that
will result from a precise coding of the Weinstein change of trend
definition. Since an AA scan for these Weinstein change of trend
conditions will be useful to a lot of Amibroker users, I would greatly
appreciate it if some experienced Amibroker coders would post the code for
that looks for these precise condtions. Ron D
itema=C<FONT
size=1>;
Sell= <FONT color=#0000ff
size=1>MA(itema,<FONT color=#ff00ff
size=1>40)>=<FONT color=#0000ff
size=1>MA(itema,<FONT color=#ff00ff
size=1>20) AND <FONT color=#0000ff
size=1>MA(itema,<FONT color=#ff00ff
size=1>5)<=<FONT color=#0000ff
size=1>MA(itema,<FONT color=#ff00ff
size=1>10)/* AND
MA(itema,10)>= MA(itema,4) AND MA(itema,4)>= MA(itema,5) AND
MA(itema,5)>=MA(itema,6)AND MA(itema,6)>=MA(itema,7) AND
MA(itema,7)>=MA(itema,9) AND MA(itema,10) >= MA(itema,12) AND
MA(itema,20)>=MA(itema,10) */AND <FONT
color=#0000ff size=1>Ref(<FONT color=#0000ff
size=1>Cross(<FONT color=#0000ff
size=1>StochD(<FONT color=#ff00ff
size=1>14),<FONT color=#0000ff
size=1>StochK(<FONT color=#ff00ff
size=1>14)),-<FONT color=#ff00ff
size=1>1);/* AND
StochK(14)>=80; */
Buy=(0<FONT
size=1>);
PlotShapes( shapeUpArrow * Buy +
shapeDownArrow * Sell, <FONT color=#0000ff
size=1>IIf( Buy, colorGreen,
colorRed ) )Send BUG
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