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Thanks Roy, will look deeper
Regards
Tim
-----Original Message-----
From: Roy Larsen [mailto:rlarsen@xxxxxxxxxxxxxx]
Sent: Tuesday, 20 May 2003 4:17 PM
To: equismetastock@xxxxxxxxxxxxxxx
Subject: Re: [EquisMetaStock Group] Formula question on ADX and RSI
Tim
This has been covered several times in this and other forums. A more
complete write-up will be in the archives within the last 6-8 weeks.
You need to set the number of periods for the exploration to at least 5
times the ADX / RSI / EMA or whatever setting. The problem is that Wilders
Smoothing (as used internally in ADX and RSI for example) is a form of an
exponential moving average. An EMA uses ALL available data in a chart for
arriving at a value. To get reasonably close to 4 decimal place accuracy an
ADX(14) will need about 75 bars of data.
You are probably using "minimum" bars (for the exploration) at the moment
and this is insufficient for any function or code using an EMA or Wilders
Smoothing either internally or externally. The Explorer will not use all
bars available, only the minimum that it calculates is necessary from
looking at the longest "periods" value contained in your code.
Roy
----- Original Message -----
From: "Tim Paul" <tim_paul@xxxxxxxxxxxxxxxxx>
To: <equismetastock@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 20, 2003 7:19 PM
Subject: [EquisMetaStock Group] Formula question on ADX and RSI
> I am a newbee and convinced I must being doing something wrong. Appreciate
> your comments or thoughts
>
>
>
>
>
> I apply the following formula in Explorer
>
> Column A
>
> ADX(14)
>
> Column B
>
> Ref(ADX(14,-1)
>
> Filter
>
> colA>30 AND colB>cola
>
>
>
> I get a report from explorer and drop the Directnl Movement ADX onto the
> stock that the report found. The parameter for the ADX is 14 day as in the
> formula. The ADX result from the chart is different from the report eg.
for
> Amcor (and Australian stock) 38 39 and on the chart 26 and 26
>
>
>
> The same happens with RSI
>
> Column A
>
> RSI(14)
>
> Filter
>
> colA>70
>
>
>
> Adelaide Brighton (ABC) returns 71.026 from report and 52 from the stock
>
>
>
> Thanks
>
>
>
> Tim
>
>
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