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Hi Roy,
Sorry to drop the ball. A few things required my attention. I'd like to
revisit the weekly pdm/mdm because I think I'm close to actually using them
in explorations.
> > The way the indicator plots right now, it seems to reflect the PDM/MDM
> > values as of the prev. week's close for the entire current week -- this is
> > exactly what I want. Awesome!
>
>It will look that way with Friday data in place, but as soon as you add
>Monday data it will use the
>new weeks value as if Monday was the last day of the new week (which it
>would be).
Yes, I can see that now based on Monday's data.
>You need the Q
>variable defaulting to to "0" to hold the Friday value right through to
>until the addition of next
>Friday data.
>
>To really see how Q values affect the plot youshould test it mid-week (or
>change the x axis
>last-date-loaded), and you should also make comparisins with the
>PDI()/MD() function results on
>weekly charts. You'll notice that my indicator plots correctly on weekly
>as well as daily charts -
>makes it much easier to test against standard functions.
>
> > Final question:
> >
> > I'm glad to have the Inputs because they make it easy to experiment
> > visually. But if I want to use a certain length of weekly PDM or MDM in an
> > exploration, what changes do I make so that I always have, say, a 21-week
> > or an 8-week PDM/MDM?
> >
> > Hmmm, not sure I've done very well explaining that. Let me try again. Say I
> > want to explore for weekly PDM(34) > weekly MDM(34) or Max(weekly
> > MDM(21),weekly PDM(21) or some such.
>
>There are probably several ways you can go here, none of them as simple as
>you might like.
>
>One way is to make copies of the base indicator, then change the name and
>defaults for the new
>indicator(s).
That sounds like the easiest way to handle it. Then I could simply grab the
PDM and MDM functions from the drop down "paste function" list. Is that
correct?
As far as changing the defaults is concerned, only two would require
attention if I'm not mistaken. I think I would tweak the PERIODS in the
following line . . .
N:=Input("Weekly ADX Periods",1,99,14); X:=1/N;
. . . changing the "14" to whatever value I needed.
But changing the Q variable so that it defaults to zero, that eludes me.
Could you show me how to do that please?
>Another way is to load a complete formula (minus the Input() functions)
>into as many columns as
>required. Getting two formulas into one column is possible (I think) but
>could be a squeeze, so
>value comparisons would probably need to be done in the filter.
>
>You will find that you need quite a lot of history for a 34 weekly period
>indicator too, 500 daily
>bars minimum but 1000 would be better. This much history with 3 PREVs per
>column is going to make
>things very slow.
Well, there are plenty of other things to do while Metastock crunches
numbers :- ) but thanks for the heads-up.'
>There's another way to get different user inputs into the Explorer, but I
>can't see how to apply the
>method in this situation.
>
>Let me know if you need further help.
I think that you make a sample of your monthly letter available. Could you
send me the link?
Best regards,
Philip
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