RE: [GT] ADX

["Weigert, Thomas" <weigert AT mst.edu>]

I always check my indicators against TA_LIB in Excel. In the case of ADX
I found disagreement, as described below among many sources including
TA_LIB.

Th.

> -----Original Message-----
> From: kw [mailto:gt
AT
netsrak.net]
> Sent: Monday, March 03, 2008 1:26 AM
> To: devel
AT
geniustrader.org
> Subject: Re: [GT] ADX
> 
> Hello GTers,
> for checking Indicators one could use the chart-47 I proposed earlier
or
> one could rely on qtstalker (which would be a convenient way of
checking
> against ta-lib).
> Another option would be the yahoo chart-tool.
> 
> At the weekend I asked my self if it would make sense to try to get a
> swig wrapped ta-lib working in GT? I don't know if this can work
either?
> 
> What's interesting as well is to pull the ta-lib svn sources, cause
> there are Excel implementations for many indicators included.
> 
> regards,
> 
> K.
> 
> 
> On Mon, 2008-03-03 at 00:21 -0600, Weigert, Thomas wrote:
> > Does anybody know a reliable way of checking the behavior of the ADX
> > indicator?
> >
> > As implemented it does not match the corresponding indicators in
tools I
> > have access to (Metastock, EclipseTrader, TA_LIB). Note that none of
> > these agree with each other either.
> >
> > I reimplemented it based on the description that I found in
metastock,
> > but that does not match the original implementation, nor the other
ones
> > listed above either.
> >
> > I realize that there might be differences due to whether Wilder's
> > smoothing is used or EMA or SMA, but the values obtained in the
various
> > implementations are too inconsistent.
> >
> > I am attaching my new version, if you care....
> >
> > Th.