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That is the formula that I have too, but when you actually plug in the
numbers, it doesn't come up to the same value.
Example:
Ann Taylor Ticker ANN (Using 14 day)
All of the up days = 9.502 / by 14 = .6787142857
All of the down days = 4.252 / by 14 = .3037142857
formula= 100 - ((100/(1+(.6787142857+.3037142857))))
answer = 69.085
Metastock = 64.833
Reuters = 73.087
This is using Friday's close. Why the difference? Any ideas? I'm not
trying to plug in the formula to chart it, I'm using the default (14-day).
At 02:06 PM 11/2/1998 -0500, you wrote:
>Heidi,
>This is equation that I have:
>
>RSI = (100-(100/(1+U/D)))
>
>where:
>U = Average of x days' up closes
>D = Average of x days' down closes
>
>x is either 9 or 14 periods depending of the one you are using.
>
>I hope this helps,
>
>Ed
>-----Original Message-----
>From: UG <ug@xxxxxxxxxxxx>
>To: metastock@xxxxxxxxxxxxx <metastock@xxxxxxxxxxxxx>; Heidi Stubner
><stubner@xxxxxxxxxxxxx>
>Date: November 2, 1998 2:16 PM
>Subject: Re: Relative Strength Index
>
>
>>Heidi Stubner writes:
>>
>>> I'm trying to calculate how Equis comes up with the RSI figures. I've
>>> tried using the formula in the manual (100-(100/1+U/D)) where U =
>>> change of up days/time period and D= change in down days/time period.
>>
>>I thought the U and D were the <period> day exponential MA of the ups or
>>downs. I have the book, but alas, it's at home. I can check it this
>>evening.
>>
>>--
>>========================================================================
>>How many SysAdmins does it take to screw in a lightbulb? None. They
>>deny privileges to everyone with access to that room.
>>http://www.unixgeek.com/cgi-bin/motd.pl - PGP email preferred
>>
>
>
>
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