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Your logic is flawed. Cond3 can never be true.
Note that Cross returns 1 or 0. So, there are 3 possible scenarios for any two sequential Cond1 values x,y where x is the previous bar value and y is the current bar value:
0, 0 zero followed by a zero (no recent cross)
0, 1 zero followed by a one (cross = true on current bar)
1, 0 one followed by a zero (cross = true on previous bar)
1, 1 (not possible since cross cannot happen twice in a row)
Now look at your Ref statement, Ref(Cond1, Cond1 - 1), for each scenario:
0, 0 -> Ref(Cond1, 0 - 1) gives previous bar value of 0
0, 1 -> Ref(Cond1, 1 - 1) gives current bar value of 1
1, 0 -> Ref(Cond1, 0 - 1) gives previous bar value of 1
And your final logic of Cond1 > Ref(Cond1, Cond1 - 1)
0, 0 -> 0 : 0 not greater than 0
0, 1 -> 1 : 1 not greater than 1
1, 0 -> 1 : 0 not greater than 1
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "shahariar4" <shahariar4@xxx> wrote:
>
> Hi, All Memebrs,
>
> Some little help in needed for the following idea.
>
> I have tried a code as follows but it does not show any result or arrow...what am i making wrong?
>
> Buy= when cond1 occurs and this cond1 has to be of higer value than the last cond1
>
>
> Cond1=Cross( ZLTyp, ZLHa );
> Cond2=Cross( ZLHa, ZLTyp );
> Cond3= Cond1> Ref(Cond1,Cond1 -1);
>
>
> Buy=IsTrue(Cond1 AND Cond3);
>
>
> // Suppose i am using a pivotlow as my buy signal, if the pivotlow my scan ditercts during scan, that pivotlow has to be at higer position than the previous pivotlow; so as like finding an uptrend with pivots........
>
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