|
PureBytes Links
Trading Reference Links
|
Thanks, Mike for the correction of the basic trend definition in my
coding. That way it definitely makes more sense as a strategy.
greetings
Klaus
--- In Metastockusers@xxxxxxxxxxxxxxx, "Mike Sloane" <mfsloane@xxxx>
wrote:
> Hi Phillip,
>
> Your email may make a little more sense to the group if you
included the
> off-line communications as well:
>
> See below:
>
> -----Original Message-----
> From: Mike Sloane [mailto:mfsloane@x...]
> Sent: Friday, 5 December 2003 11:47 PM
> To: 'Philip'
> Subject: RE: [Metastockusers] Writing code for "the first time an
event
> happens"
>
>
> Hi Philip,
>
> 1.0 Yes, you could replace Trend with any variation of your
> definition of the trend.
> 2.0 Yes, you could replace Trigger with any indicator, provided
it is
> a binary signal (only possible values are 0 or 1)
> 3.0 No; in my code, Test rises to 1 when Trend is true and
rises to 2
> when "Trend is already true and Trigger becomes true" (note
Trigger is
> true for one bar only); Signal spikes when Test rises from 1 -> 2
(i.e.
> Crosses 1.5).
>
> A couple of further points:
>
> My code is an example of a latched indicator that requires the use
of
> the PREV function; for some reason I tend to write a lot of my
code this
> way. The code posted by metarockx is a perfectly valid (and
efficient)
> way of achieving the same result without using the PREV function -
an
> important factor if you have a slower computer or many indicators
that
> use the PREV function, as it requires more processing time.
>
> However there were a couple of small errors with ">" and "<" in the
> metarockx code; I have taken the liberty of correcting it and
> rearranging it a little:
>
> Trend := Mov(C,55,E) > Ref(Mov(C,55,E),-1);
>
> StartTrend := Trend AND Ref(Mov(C,55,E),-1) < Ref(Mov(C,55,E),-2);
>
> Trigger:= Cross(Mov(C,8,E),Mov(C,13,E));
>
> Signal:= Trend AND Trigger
>
> AND BarsSince(Ref(Trigger,-1)) > BarsSince(StartTrend);
>
>
>
> Signal
>
>
>
> Note that when they are both plotted on a chart (see attached SPX -
> metarockx signal is top/blue; my signal is bottom/purple), my
signal
> requires Trend to be established for one day before Trigger can
give a
> signal; metarockx code will give a signal in the case where Trend
and
> Signal both become true on the same day.
>
> It all depends on what you wish to achieve.
>
> As noted in my earlier post, when I am building an indicator like
this I
> will often create separate sub-indicators (Trend, Trigger, Test
etc) and
> plot them in separate windows on the chart, observe the
interaction and
> make sure it is doing exactly what I intended.
>
>
> Good trading,
> Mike
>
> PS: you may wish to post this to the group to "complete" the
thread - I
> will leave that up to you.
>
> Regards,
> MS
>
>
>
>
>
>
>
> -----Original Message-----
> From: Philip [mailto:pschmi02@x...]
> Sent: Friday, 5 December 2003 5:48 PM
> To: mfsloane@xxxx
> Subject: RE: [Metastockusers] Writing code for "the first time an
event
> happens"
>
>
> Mike,
>
> Many thanks for your help! I'll need about a week or ten days to
work
> with your formulas. SPECIAL thanks for the tip about the "Using
latches
> in MS.doc" -- that might be just what I need.
>
> If you could spare another few minutes, some questions have come to
> mind.
>
> 1. Even with my limited grasp of the syntax it seems that if I
wanted to
> vary my trend definition, all I would have to do is replace the
> statement following Trend:=, right? But what about changing the
trigger?
> Say my trigger is some formula I've cooked up in the indicator
builder
> called . . . I don't know . . . "TURN" consisting of an oversold
StoRSI
> or some price pattern. Would I simply substitute "TURN" instead of
> Cross(Mov(C, 8, E), Mov(C, 13, E)); following Trigger:=? And would
this
> entail making a change to the next to last line, the line that
currently
> reads: Signal:= Cross(Test, 1.5);?
>
> 2. The syntax you''ve written could be used both as an indicator
or an
> exploration filter, correct?
>
> TIA,
>
> Philip
>
>
>
> "urn:schemas-microsoft-com:office:office">
> Philip,
>
> The previous post from metarockx prompted me to take another look
at the
> code I posted earlier and I found a condition that is not in line
with
> your spec.
>
> As written, the signal plot will spike if the 8 EMA is already
above the
> 13 EMA when the 55 EMA turns up; this can be solved by changing the
> Trigger condition from " > " to a "cross" condition, as below:
>
> Trend:= Mov(C, 55, E) > Ref(Mov(C, 55, E), -1);
> Trigger:= Cross(Mov(C, 8, E), Mov(C, 13, E));
>
> Test:= If(PREV = 0,
> If(Trend, 1, 0),
> If(Trigger, 2,
> If(Trend + Trigger = 0, 0, PREV)));
>
> Signal:= Cross(Test, 1.5);
>
> Signal
>
> Good trading,
> Mike
>
>
>
> -----Original Message-----
> From: Philip [mailto:pschmi02@x...]
> Sent: Saturday, 6 December 2003 7:31 AM
> To: Metastockusers@xxxxxxxxxxxxxxx
> Subject: RE: [Metastockusers] Writing code for "the first time an
event
> happens"
>
>
>
> Thanks, Mike, your explanations are great! I don't always do as
good a
> job
> of communicating these things clearly, but when I posted
originally I
> was
> trying to find a way to run an exploration for an event which has
> occurred
> for the first time. More specifically, the first retracement in a
trend,
>
> regardless of how the trend (or the retracement) is defined.
>
> In the past, I've simply created an indicator and then "called" it
in
> the
> symbol or highlight section of an expert. So I would have written
> something
> like:
>
> Fml( "Trenddefinition") and Fml("Retracement") . . . and then
chosen a
> buy
> arrow or some such. When both obtain I get my signal. Wouldn't
that give
> me
> the same result as the code you and metarockx have written? But
now I'm
> trying to isolate that first retracement and explore for that first
> event
> alone -- and I'm stumped.
>
> In terms of watching the way price moves, it seems that the first
> retracement after a trend kicks in has a better chance of leading
to a
> profitable trade than later retracements. I'm still at the "hunch"
stage
>
> about this, but I'd like to investigate further. So how do I nail
(i.e.
> explore for) that first retracement? Say my trend definition has
been
> true
> since October 1, 2003 (or even just since yesterday, for that
matter)
> and
> today, for the first time, my retracement definition is met. Using
your
> .jpg as an example, I'd like to run an exploration that would
identify
> only
> such retracements as the one signal both you and metarockx have
> identified
> early in July -- the first signal of its kind after the trend
definition
>
> has kicked in.
>
> I'm afraid I didn't do a good job of expressing this in my initial
post.
>
> Philip
>
>
>
>
> Yahoo! Groups Sponsor
>
> ADVERTISEMENT
>
>
<http://rd.yahoo.com/SIG=12ch1q3jm/M=267637.4116730.5333196.1261774/D
=eg
>
roupweb/S=1705001779:HM/EXP=1070742690/A=1853618/R=0/*http://www.netf
lix
> .com/Default?mqso=60178338&partid=4116730> click here
>
> <http://us.adserver.yahoo.com/l?
M=267637.4116730.5333196.1261774/D=egrou
> pmail/S=:HM/A=1853618/rand=494308586>
>
> To unsubscribe from this group, send an email to:
> Metastockusers-unsubscribe@xxxxxxxxxxx
>
>
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
> <http://docs.yahoo.com/info/terms/> .
------------------------ Yahoo! Groups Sponsor ---------------------~-->
Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark
Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada.
http://www.c1tracking.com/l.asp?cid=5511
http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/zMEolB/TM
---------------------------------------------------------------------~->
To unsubscribe from this group, send an email to:
Metastockusers-unsubscribe@xxxxxxxxxxx
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
|