|
PureBytes Links
Trading Reference Links
|
Hi:Try
LowestSince(1,cross(H,Ref(HHV(HIGH,40),-1)),LOW) Don't know what your
doing but <> gives a constant 1 and generally doesn't give what you
want. Cross(above, below) gives a spike which is needed to start
lowestsince(jk,KJK,JK) Donald
--- In equismetastock@xxxxxxxxxxxxxxx, "bex1210" <hmw3@xxxx> wrote:
> Roy:
>
> Thanks for the explaination of when true/false is required. I must
admit I have lots of trouble understanding the nuances of the
Metastock manual.
>
> Unfortunately, your
> "LowestSince(1,H>Ref(HHV(HIGH,40),-1),LOW)"
> doesn't work any better than my
> "H1:=HHV(HIGH,40);
> LowestSince(1,H1=HIGH,LOW)".
>
> Both get in trouble when the high rises and falls, yet does not
exceed a previous high over the 40 period. Trying charting any stock
that rises and falls (i.e., is not trending). Then plot an Indicator
of "HHV(HIGH,40)". Then plot a 2nd indicator of either of the two
LowestSince() formulas above. You will see that there are spots where
the HHV indicator drops over time to pick up a newer (and lower) HHV,
but the LowestSince() doesn't recognize the newer HHV, and therefore
doesn't change the Low as it should. (It make take looking at several
stocks before you find one with the correct relations of relative
highs.)
>
> I thought I had a solution by calculating the period back to when
the HHV occurred, and then substituting that period into llv(); such
as
> "H1:=HHVBars(HIGH,40);
> llv(low,H1)"
> but Metastock will not allow a variable for the period in llv()
[although it does allow variables for periods in formulas such as rsi
().]
>
> So I am stuck. With your vast experience in using these Metastock
formulas, perhaps you have another suggestion.
>
> And yes, when I can get something to chart correctly, my plan is to
use it in the Explorer, and hopefully also in the System Tester.
>
> Harry
>
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, "Roy Larsen" <rlarsen@xxxx>
wrote:
> > Harry
> >
> > I misunderstood/misread your question. I wrongly assumed it was
concerning
> > an exploration.
> >
> > Looking at your example below, you are using a price "HHV
(HIGH,40)" as if it
> > were a binary value (true or false). Any price above $1 will be
treated as a
> > binary true. You need to set up a true/false condition inside the
> > LowestSince() possibly "LowestSince(1,H>Ref(HHV(HIGH,40),-
1),LOW)". I'm
> > assuming the prices you are working with are nearly always
greater than $1.
> >
> > Sorry for the earlier misinformation. Hope this puts you on the
right track
> >
> > Roy
> >
> > ----- Original Message -----
> > From: "bex1210" <hmw3@xxxx>
> > To: <equismetastock@xxxxxxxxxxxxxxx>
> > Sent: Saturday, May 03, 2003 5:10 PM
> > Subject: Re: [EquisMetaStock Group] Problem with LowestSince
function
> >
> >
> > > Roy:
> > >
> > > Thanks for the rapid response.
> > >
> > > I think I understand the "periods" suggestion, and will set
that up as a
> > separate Indicator to call by Explorations.
> > >
> > > But I don't understand your response on LowestSince(), or my
question was
> > not phrased well, or both!
> > >
> > > I was first trying to use LowestSince () in a chart. It was my
> > understanding, from one of your earlier posts, that Indicators in
charts
> > scan ALL loaded data; so minimum should not be an issue as it is
in the
> > Explorer.
> > >
> > > When I try to chart an Indicator using "LowestSince(1,HHV
(HIGH,40),LOW)",
> > I get a plot line identical to the Low of each day (i.e., I get
today's low
> > today, yesterday's low for yesterday, etc.)
> > >
> > > I then thought that perhaps there had to be some form of cross
for
> > LowestSince() to function, so I created an Indicator which used:
> > > H1:=HHV(HIGH,40);
> > > LowestSince(1,H1=HIGH,LOW)
> > >
> > > This at least plots a curve, and works correctly part of the
time, but
> > when the stock price (High) rises and subsequently falls over a
period of
> > time, AND the resulting High is below my calculated H1, then
LowestSince()
> > calculates the wrong Low. I also tried H1<HIGH, and even H1>HIGH,
and
> > combinations. None work.
> > >
> > > So there is something which I must not understand about how
LowestSince()
> > actually functions.
> > >
> > > Any wisdom would be greatly appreciated.
> > >
> > > Harry
> > >
> > > --- In equismetastock@xxxxxxxxxxxxxxx, "Roy Larsen"
<rlarsen@xxxx> wrote:
> > > > Harry
> > > >
> > > > When using LowestSince() in the Explorer you must force it to
scan at
> > least
> > > > the required number of bars, and preferably more. ValueWhen()
and
> > > > BarsSince() are other function that will not return expected
values when
> > > > used with "minimum" bars.
> > > >
> > > > And don't forget the many functions using any form of
exponential
> > smoothing
> > > > require at least 5 times more data than the longest "periods"
used by
> > the
> > > > offending functions.
> > > >
> > > > To access a "Periods" value for ALL exploration columns I
suggest you
> > create
> > > > an indicator specifically for this purpose. You can set up
any number of
> > > > variable values then use FmlVar() in your exploration columns
to call
> > the
> > > > required value. This could be used for dates as well as
numbers. Just be
> > > > aware that there is a performances trade-off when the number
of formula
> > > > calls begins to climb.
> > > >
> > > > Roy
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "bex1210" <hmw3@xxxx>
> > > > To: <equismetastock@xxxxxxxxxxxxxxx>
> > > > Sent: Saturday, May 03, 2003 5:59 AM
> > > > Subject: [EquisMetaStock Group] Problem with LowestSince
function
> > > >
> > > >
> > > > > I have Metastock 8.01, EOD version. I am trying to
calculate the
> > lowest
> > > > low since the highest high for use in an Explorer. But I am
having real
> > > > problems.
> > > > >
> > > > > To visualize what is happening, I have created indicators
to plot on
> > > > charts. If I create an indicator for the HighestHigh [hhv()]
for a
> > specific
> > > > period, it plots correctly. So does Lowest Low [llv()].
> > > > >
> > > > > But when I try to plot the lowest low since the highest
high for a
> > period
> > > > using [LowestSince(1,HHV(HIGH,40),LOW)], all I get is
today's low. If I
> > > > change the Nth figure to 2, I get yesterday's low. Neither
are the real
> > low
> > > > since the last high; not anywhere close.
> > > > >
> > > > > Clearly I am doing something wrong. Can someone provide a
little
> > guidance?
> > > > >
> > > > > Thanks in advance,
> > > > >
> > > > > Harry
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > To unsubscribe from this group, send an email to:
> > > > > equismetastock-unsubscribe@xxxxxxxxxxxxxxx
> > > > >
> > > > >
> > > > >
> > > > > Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> > > > >
> > > > >
> > > > >
> > > > >
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > equismetastock-unsubscribe@xxxxxxxxxxxxxxx
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> > >
------------------------ Yahoo! Groups Sponsor ---------------------~-->
Rent DVDs from home.
Over 14,500 titles. Free Shipping
& No Late Fees. Try Netflix for FREE!
http://us.click.yahoo.com/BVVfoB/hP.FAA/uetFAA/BefplB/TM
---------------------------------------------------------------------~->
To unsubscribe from this group, send an email to:
equismetastock-unsubscribe@xxxxxxxxxxxxxxx
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
|