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Ajay, thanks for your suggestion of how to make use of Hold(), and I also
thank Graham for suggesting uses of Sum() a long time ago. Ron D
----- Original Message -----
From: "Ajay Joglekar" <technical.trader@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, July 01, 2005 4:14 PM
Subject: Re: [amibroker] A More Efficient Way?
> How about this more intuitive code (for me and maybe for most others) by
> using Hold instead of Sum. I think Hold is also more efficient than Sum as
> it works using boolean calculation rather than arithmatic.
>
> Buy = MA(C,25)>MA(C,75) AND ( NOT Ref(Hold(MA(C,25)>=MA(C,75),10),-1));
>
> Here you are checking in the second condition that the MA25 was not
> greater
> or equal to MA75 over any of the past 10 days.
>
> Note the use of NOT on the Hold. This will help in similar examples where
> you want to have a specific condition true over some past few bars. Then
> what you have to do is deduce the exact complement or opposite condition
> and
> put it into Hold , go back as many bars as you want (use Ref) and then NOT
> it.
>
> -Ajay
> ----- Original Message -----
> From: "ldriker" <leoker@xxxxxxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Friday, July 01, 2005 2:52 AM
> Subject: [amibroker] A More Efficient Way?
>
>
>> Following is a simple buy signal premised upon the 25 day simple
>> moving average just having crossed above the 75 day simple moving
>> average coupled with the 25 day simple moving average being below
>> the 75 day simple moving average for each of the last 10 days.
>>
>> How might this code be written more efficiently?
>>
>> Buy = MA( Close, 25 ) > MA( Close,75 ) AND
>> MA( Ref( Close, -1 ), 25) < MA( Ref( Close, -1 ), 75 ) AND
>> MA( Ref( Close, -2 ), 25) < MA( Ref( Close, -2 ), 75 ) AND
>> MA( Ref( Close, -3 ), 25) < MA( Ref( Close, -3 ), 75 ) AND
>> MA( Ref( Close, -4 ), 25) < MA( Ref( Close, -4 ), 75 ) AND
>> MA( Ref( Close, -5 ), 25) < MA( Ref( Close, -5 ), 75 ) AND
>> MA( Ref( Close, -6 ), 25) < MA( Ref( Close, -6 ), 75 ) AND
>> MA( Ref( Close, -7 ), 25) < MA( Ref( Close, -7 ), 75 ) AND
>> MA( Ref( Close, -8 ), 25) < MA( Ref( Close, -8 ), 75 ) AND
>> MA( Ref( Close, -9 ), 25) < MA( Ref( Close, -9 ), 75 ) AND
>> MA( Ref( Close, -10 ), 25) < MA( Ref( Close, -10 ), 75 )
>>
>>
>>
>>
>>
>>
>>
>>
>> Please note that this group is for discussion between users only.
>>
>> To get support from AmiBroker please send an e-mail directly to
>> SUPPORT {at} amibroker.com
>>
>> For other support material please check also:
>> http://www.amibroker.com/support.html
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
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>
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