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Sean,
My data is downloaded from Prophet and it has 5/8/03 data in TAG . I
deleted this data(5/8/2003)and modified its preceding data(5/7/03) for
identification purpose. Then plot the Tag using security over the IBM.
Yes the missing data gets plotted and MS really "fabricated"
the data from the preceding bar. I wasn't that observant in my earliest
test, in fact, when I revisited, the 1 year range of data did replicated
from the previous bar just before the 1st missing data. As seen on the
chart it is horizontal flat line until the next valid data. It would be
meaningful to see a break in the tag data rather than a continuous plot
with false data. And this can cause a false TA decision if that happens
to be a point of interest.
It is interesting that you are applying the security function to do
inter-market analysis, I would be interested to learn from you. How did
you choose the best indicators for your analysis work. I would be
interested on the mechanism of the analysis to arrive at a trade. I
believe you are an experienced and successful trader and care to share
your expertise.
I am exploring how security function can be used to generate trade
signal. Could you enlighten me.
Best Regards
Freddie Ng
At 03:38 PM 5/16/2003 +0000, you wrote:
Hi Freddie,
Once again, thanks for looking into this.
I have MS 7.2 EOD which doesn't have the Security function built in
but I do have the MS Dev Kit so I can write most things.
I'm very interested in intermarket analysis and want to carry out
some tests incorporating other markets. The Security function makes
this easy. E.g. if Bonds down, go long stocks (that sort of thing).
I don't see any reason why you would not be able to incorporate the
Security function to generate trade signals with the Metastock system
tester.
I wrote my own version of a 'Security' function and just happened to
test it on TAG which showed up this issue.
Any chance you could try this?
1. Open TAG chart (just last 20 periods).
2. Confirm there is no data for 5/8/2003 (YAHOO doesn't have any).
3. Open IBM chart (again - just 20 periods).
4. Add an indicator to the IBM chart which is basically a call to the
Security function to retrieve the closing price of TAG.
5. Does this indicator display something for the whole 20 periods?
If so, what does it generate for 5/8/2003 when there is nothing for
it to return? This is the key question.
Once again, many thanks for your help.
Sean
--- In Metastockusers@xxxxxxxxxxxxxxx, Freddie Ng <n07476@xxxx>
wrote:
> Sean,
>
> First of all, the security function does not have additional
parameters to
> specify period of interest, so it basically takes whatever data
that is
> available and plot it on to the base security. However, I have
simulated a
> gap of data range of 1 year period for easy identification during
my test,
> the tag security is plotted onto the base security but an eyeball
check,
> one can tell that there is a missing range of data. In fact, you
don't need
> to pad missing data at all, MS will do it all for you.
> I hope I am correct to day that you can't use TAG security to
provide trade
> signal, trading signals still comes from your base security. The
TAG is on
> a reference plot. The output of the expert advisor with any
indicator
> further confirmed that trading signals has nothing to do with the
tag. Hope
> that clears the cloud.
> BTW, what are you trying to achieve with the security function
?
>
> Best Regards
> Freddie Ng
>
> At 02:35 AM 5/16/2003 +0000, you wrote:
> >Hi Freddie,
> >Thanks very much for trying this.
> >It may have helped if I had explained a bit more up front.
> >Here goes:
> >I need you to try a gap in the middle, not at the
beginning.
> >The problem with the Metastock/MS Dev Kit is that you can only
return
> >one range of periods with each function call.
> >E.g. you can return data for 02132002 - 05132003 BUT you
cannot
> >return data for 02132002-05132003 & 05152003 in one call (we
have a
> >gap). I have to populate that missing day with something
if I want
> >to provide data either side of that date and the base security
has
> >data for that day.
> >
> >So my question is what does the Security function do in
situations
> >where there is no data available in the middle. Hence why
I choose
> >TAG and 05092001 as it's a trading day but for some reason that
date
> >has no data.
> >
> >Did that make more sense?
> >
> >Thanks very much,
> >Sean
> >
> >--- In Metastockusers@xxxxxxxxxxxxxxx, Freddie Ng
<n07476@xxxx>
wrote:
> > > Sean,
> > > I hope I understand you correctly, let me lay the scenario
here:
> > > Both security to be plotted on the inner window.
> > > Base security : 05092001 - 05132003 - longer period
> > > Tag security : 02132002 - 05132003 - shorter
period
> > >
> > > Metastock will still load the both according to their
available
> >periods,
> > > i.e. no data plotted for tag security from 05092001 -
02122002.
> >There isn't
> > > any problem with the security function encountered so far,
:-)
> > >
> > > Best Regards
> > > Freddie Ng
> > >
> > > At 08:39 PM 5/14/2003 +0000, you wrote:
> > > >Hi,
> > > >
> > > >Could someone with the 'Professional' version of
Metastock try
> > > >something for me?
> > > >
> > > >If you open any symbol (so this is the base security)
and then
> > > >open 'TAG' with the security function in an inner
window, what
> > > >happens on 05092001?
> > > >
> > > >I'm assuming the base security you choose has data for
that
date
> > >> but TAG does not.
> > > >
> > > >I'm writing a function with the dev kit that
encounters a
similar
> > > >situation and I don't know how to handle it.
> > > >
> > > >Thanks very much.
> > > >
> > > >Sean
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