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Bill,
That's right, what you have is a system test formula. The
explorer can't optimize, where the system tester can. To use the
formula in the Explorer, you have to replace opt2. Start out using
21, then you can try the other values of 34 or 55 to see which you
like best. In fact you can experiment with any number you want.
Jim
-----Original Message-----
From: Bill G Bolumen <BOLUMENB@xxxxxxxxxxx>
To: metastock@xxxxxxxxxxxxx <metastock@xxxxxxxxxxxxx>
Date: Thursday, July 16, 1998 6:24 PM
Subject: Re: Tema
>Jim,
>I am not good at all with formulas and I was trying to copy your
Short
>Formula into explorer and it says that "optimization variables are
not
>allowed in this type of formula"
>What else do I need to other than just inputting the short formula
into the
>explorer?
>Thanks,
>Bill
>
>----------
>> From: Jim Greening <JimGinVA@xxxxxxxxxxxxx>
>> To: metastock@xxxxxxxxxxxxx
>> Subject: Re: Tema
>> Date: Wednesday, July 15, 1998 6:54 PM
>>
>> CMA,
>> I'll copy an old post below.
>>
>> Jim
>> --------------------------------------
>> The Rsquared, S/C,MFI test is based on linear regression.
>> RSquared is a function that measures how strong a data array of
given
>> length is trending. A return of one correlates to a very strong
trend
>> in either direction. A return of zero correlates to no trend. I'm
>> using it to tell me when there is no trend over the last 21 days,
or
>> that rsquared(C,21) is less than 0.15. Now that we have no trend,
we
>> would expect one to start in the next 5 to 13 days. If one does
start
>> we want to determine the direction and get in early. Therefore
>> Rsquared is used as a trigger, using it as an ALERT function. With
>> the ALERT given, if all the rest of the conditions are met any time
>> within a 13 day period, the buy signal will be generated. I'm then
>> using S/C and MFI to determine trend start and direction.
>> S/C is nothing more than the normalized 34 day LinRegSlope of
the
>> close. I normalize it by dividing it by the close so charts are
more
>> directly comparable. I also multiply by 10000 just to get numbers
>> between 0 and a few hundred. Finally I apply Tema smoothing to get
a
>> smoother plot. The theory is that if S/C is rising then a uptrend
is
>> in progress. If S/C is falling a down trend is in progress. I
check
>> this by making sure that tema(S/C) is larger than an optimized
value
>> (opt1) and is rising. I use the function HHV(X,5) = HHV(X,13) to
>> check. This is just a quick way to determine if the most reason
>> values of X have been rising. If the condition is met, then S/C is
>> rising. Similarly if it met the condition LLV(X,5) = LLV(C,13) it
>> would be falling.
>> I double check the result by also making sure that MFI is also
>> rising. When all conditions are met within 13 days of the alert,
we
>> get a buy signal. The converse is true for a sell signal. Since
the
>> market is biased upwards, I add two additional checks for the
short -
>> MFI less then 0 and the 55 day variable moving average falling. I
>> close the positions when the trend has stopped. For the long
position
>> I check that the Tema(MFI) is below 0, the Tema(S/C) is below opt 1
>> and a 55 day exp moving average is falling. Short positions tend
to
>> move faster, so I only look the 144 day moving aver to begin rising
to
>> close that position. The complete test follows:
>>
>> ENTER LONG:
>> Alert(RSquared(C,21) < 0.15,13) AND
>> Tema(10000*LinRegSlope(C,34)/C,34) > opt1 AND
>> HHV(Tema(10000*LinRegSlope(C,34)/C,34),5) =
>> HHV(Tema(10000*LinRegSlope(C,34)/C,34),13) AND
>> HHV(Tema(MFI(55),55),5) = HHV(Tema(MFI(55),55),13)
>>
>> CLOSE LONG:
>>
>> Tema(MFI(55),55) - 50 < 0 AND
>> Tema(10000*LinRegSlope(C,34)/C,34) < opt1 AND
>> LLV(Tema(10000*LinRegSlope(C,34)/C,34),5) =
>> LLV(Tema(10000*LinRegSlope(C,34)/C,34),13) AND
>> LLV(Tema(MFI(55),55),5) = LLV(Tema(MFI(55),55),13)
>>
>> ENTER SHORT
>>
>> Alert(RSquared(C,21) < 0.15,13) AND
>> Tema(10000*LinRegSlope(C,34)/C,34) < opt2 AND
>> LLV(Tema(10000*LinRegSlope(C,34)/C,34),5) =
>> LLV(Tema(10000*LinRegSlope(C,34)/C,34),13) AND
>> LLV(Tema(MFI(55),55),5) = LLV(Tema(MFI(55),55),13) AND
>> Tema(MFI(55),55) - 50 < 0 AND
>> LLV(Mov(C,55,VAR),5) = LLV(Mov(C,55,VAR),13)
>>
>> CLOSE SHORT
>>
>> HHV(Mov(C,55,VAR),5) = HHV(Mov(C,55,VAR),13) AND
>> Tema(MFI(55),55) - 50 > 0
>>
>> OPTIMIZATION:
>>
>> OPT1: Min=-34 Max=-8 Step=13
>> OPT2: Min=-55 Max=-21 Step=34
>>
>> -----Original Message-----
>> From: amc amc <cma6@xxxxxxxxx>
>> To: metastock@xxxxxxxxxxxxx <metastock@xxxxxxxxxxxxx>
>> Date: Wednesday, July 15, 1998 11:09 AM
>> Subject: Tema
>>
>>
>> >
>> >To Jim Greening:Don't know if you have covered this, but can you
>> >describe Tema S/C and Tema MFI (money flow index?), howconstructed
>> >and how interpreted. Thanks, CMA
>> >
>> >
>> >
>> >_________________________________________________________
>> >DO YOU YAHOO!?
>> >Get your free @yahoo.com address at http://mail.yahoo.com
>> >
>>
>>
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