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Plot each formula separately and notice the values
of up and down are sometimes zero. This is why you
are getting the error message that LLV(...,up) is
invalid. You need to define what you want to do
when up and/or down are zero and adjust the formulas
accordingly.
> -----Original Message-----
> From: cbfrish [mailto:cbfrish@xxxxxxxxxxx]
> Sent: Thursday, May 08, 2003 11:01 AM
> To: equismetastock@xxxxxxxxxxxxxxx
> Subject: [EquisMetaStock Group] Coding Assistance
>
>
> I'm having a problem, and asking for help, with the following:
>
> An uptrend is defined as: if (days since RSI(9) > 70) < (days since
> RSI(9) < 30) and the lowest low value of RSI(9) since then > 40.
>
> A downtrend is defined as: if (days since RSI(9) < 30) < (days since
> RSI(9) > 70) and the highest high value of RSI(9) since then < 60
>
> If neither condition is satisfied, then it's a trading range.
>
> This should be plotted as a histogram.
>
> I've coded this as follows (MS 7.2 if that matters):
>
> up:=BarsSince(RSI(9)>70);
> down:=BarsSince(RSI(9)<30);
>
> uptrend:=up<down AND LLV(RSI(9),up) > 40;
>
> downtrend:=down<up AND HHV(RSI(9),down) < 60;
>
> Here are the problems:
>
> 1. I sometimes get an error that says something like "function
> error, zero value passed to LLV (or HHV)".
>
> 2. I'm not sure how to get this to plot the results properly.
>
> 3. Sometimes the code appears to work, but the "trending"
> portion of
> the graph is very small and occasional, while the "ranging"
> portion
> of the graph takes up most of the space. This is the opposite of
> what I was expecting, and doesn't appear to correlate to the
> actual
> price movement at all.
>
> Can anybody help make sense of all this? Thanks in a advance.
>
>
>
>
>
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