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>From MetaStock help: "The Moving Average Convergence/Divergence indicator
(MACD) is calculated by subtracting the value of a 0.075 (26-period)
exponential moving average from a 0.15 (12-period) exponential moving
average. A 9-period dotted exponential moving average (the "signal line")
is automatically displayed on top of the MACD indicator line."
Perhaps they are using the 0.075 and 0.15 directly instead of the number of
days. Using the days, I believe you get .07407 and .15385 factors.
Mike
-----Original Message-----
From: Ed Middleton [SMTP:jgelfand@xxxxxxx]
Sent: Wednesday, November 25, 1998 7:52 AM
To: metastock@xxxxxxxxxxxxx
Subject: Re: QP2 / metastock calculation equal
Brooke,
Anything above 500 data points in Metastock does not affect the final MACD
values for at least the 5 signficant digits. I also went to the Metastock
for Java at:
http://www.equis.com/java/
and for AAPL, if you set it up with 9 day smooth. avg. and move the pointer
to Nov. 24 the Indicator value at the top below the "9" (i.e. I = ) has a
value of ),244 which agrees with Metastock software. How did you get MS to
agree with QP2? Something is very funny here. Is it possible that QP and
MS are using slightly different equations?
Ed
Original Message-----
From: Brookemail@xxxxxxx <Brookemail@xxxxxxx>
To: metastock@xxxxxxxxxxxxx <metastock@xxxxxxxxxxxxx>
Date: November 24, 1998 10:34 PM
Subject: QP2 / metastock calculation equal
>Ed: You should get identical values if you load enough days in Metastock
(and
>the QP scan). For example, try loading 2,000 days in Metastock. (Go to
File,
>Open, and then Options. You don't have to display that many days, of
course.)
>MACD values in Metastock are sensitive to days loaded, just as they are in
>Quotes Plus.
>
>>From the values you gave below, I see that you're using MACD (12,26,9).
When I
>plot that in Metastock for APPL, I get values equal to those in QP (to
five
>decimal places).
>
>For MACD, I get -0.25629
>For the MACD histogram, I get -0.25649
>
>(I assume you left the minus signs out.)
>
>Brooke
>
>
>In a message dated 11/24/98 6:25:31 PM Pacific Standard Time,
jgelfand@xxxxxxx
>writes:
>
>> There still seems to be a difference between QP and
>> Metastock that I can't figure out. Both the indicator and the
explorations
>
>> (with 500 data points) in Metastock give me the same number but a bit
off
>> from QP2.
>>
>> STOCK SYMBOL: AAPL (apple computer)
>> MACD(QP2) = 0.2563
>> MACD(MS) = 0.2446
>>
>
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