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Amibroker does not like this either.
Filter = ROC(C,102) == IsNull;
AddColumn (ROC(C,104),"2yr%chg");
Hmm. Maybe if I search the help files I downloaded. Thanks for
your input.
Jim
---------------------------------------------------------------------
--- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxxx> wrote:
> try filter = roc(c,102) == isnull;
>
> = is for assignments
>
> == is for comparing
>
> d
>
> _____
>
> From: Jim [mailto:bankedout@x...]
> Sent: Friday, January 16, 2004 3:22 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: Exploration to find "Empty" values
>
>
> "> If they haven't been trading you should be able to filter on
> Close.
> > Either way, check out the IsNull function."
>
> I want them to be trading. I'm looking for stocks with less than
2
> years of price history. Initial Public Offerings etc.
>
> I tried this:
>
> Filter= ROC(C,102)=IsNull;
> AddColumn (ROC(C,104),"2yr%chg");
>
> And then tried pushing Explore. Amibroker does not like this. It
> points to right before the = sign and tells me I have a syntax
> error. I'm trying to "tell" Amibroker that I want those stocks
> which have ROC(C,102) value of "nothing" (not ZERO).
>
> Any ideas?
>
> Jim
> -------------------------------------------------------------------
--
> --- In amibroker@xxxxxxxxxxxxxxx, "sloughbridge"
<sloughbridge@xxxx>
> wrote:
> > --- In amibroker@xxxxxxxxxxxxxxx, "Jim" <bankedout@xxxx> wrote:
> > > Hello,
> > >
> > > I am wondering how to do something with an exploration.
> > >
> > > If I Filter my database for Close > Zero, it will return all
of
> my
> > > stocks.
> > >
> > > If I then Add a Column which displays the Rate of Change for
the
> > > Close,102 weeks This displays mostly stocks with a number
> value.
> > > Either positive or negative, depending on how their price has
> > > changed over the past 2 years.
> > >
> > > But, if I sort by this ROC 2 years column, there are quite a
few
> > > results where there is no value. I'm guessing these are
issues
> > > which haven't been trading for 2 years.
> > >
> > > How do I screen specifically for ROC(C,120)="No Value"
> > >
> > > What do I put in place of "No Value"?
> >
> > If they haven't been trading you should be able to filter on
> Close.
> > Either way, check out the IsNull function.
>
>
>
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