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cum(1) is from the beginning of your data.
So, if Friday Sept 7 has cum(1)==300, on Monday Sept 10, if you
select again Friday, its cum(1) will ba again 300.
And it will be always 300, except if you add data at the beginning.
So, for Friday Sept 7, cum(1)%8==300%8==(37*8+4)%8==4.
D. T.
--- In amibroker@xxxx, "Stephane Carrasset" <nenapacwanfr@xxxx> wrote:
> Tz,
>
> You wrote
> <<
> Hi Dimitris, For example if you want to generate a "1" every 8th
bar
> you can now write impulse8 = ( cum(1) % 8 ) == 0; This is useful
when
> you try to simulate different periodicity from daily data: close8 =
> ValueWhen( impulse8, close ); high8 = HighestSince( impulse8,
high );
> low8 = LowestSince( impulse8, low ); Best regards, Tomasz Janeczko
> >>
>
>
> but the 8time frame bars ( or another lenght of time frame) are
> calculated from the last data isn't it ?
> and change when new data are added
> so it can't be use in backtest
>
> right or wrong ? ?
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