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How to program price cross below a number of previous bars
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How to program price cross below a number of previous bars

  #1 (permalink)
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How to program price cross below a number of previous bars

Hi all,

I am using the strategy wizard to build a couple of strategies, but I am struggling to do something quite simple.

What I want to do is the following: When the close of a bar is below the price of the previous x number of bars. So basically just a simple break the a low of a period.

I have tried using the "crossbelow" option with with various price options as both the data sets, and then the lookback period value of the number of bars i want the range to be within... no go. I have tried various other methods also, can't seem to get it working. It seems like such a simple thing...

Any help would be most appreciated.
Cheers

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  #2 (permalink)
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Crossbelow a 3 period donchian should work

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  #3 (permalink)
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vegasfoster View Post
Crossbelow a 3 period donchian should work

Using the close price?

e.g When close closses below donchian channel of certain period.

Tried this, but it seems the lower close will update the donchian channel so they are always equivalent and therefore can never cross?

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  #4 (permalink)
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How about something like:

if(DonchianChannel.Lower(n)[0] < DonchianChannel.Lower(n)[1]) Print("Its headed south!!!");

Haven't tried it but that should work with COBC true or false.

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  #5 (permalink)
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Try referencing the previous bars figure.

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  #6 (permalink)
Fortitudo et Honor
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I guess the easiest (and crude) way would be to simply reference the low of the previous bar...

if close < low[1] then ......

And if you wanted 2 bars....just add an and statement with low[2]

so forth and so on.....

I'm sure there's some geek type that can craft a more elegant way to use an input to specify the number of bars you desire and have the code reflect that......

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  #7 (permalink)
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RM99 View Post
I guess the easiest (and crude) way would be to simply reference the low of the previous bar...

if close < low[1] then ......

And if you wanted 2 bars....just add an and statement with low[2]

so forth and so on.....

I'm sure there's some geek type that can craft a more elegant way to use an input to specify the number of bars you desire and have the code reflect that......

I have resorted to this in the past, there has to be a way to have a range of bars though surely?

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  #8 (permalink)
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MXASJ View Post
How about something like:

if(DonchianChannel.Lower(n)[0] < DonchianChannel.Lower(n)[1]) Print("Its headed south!!!");

Haven't tried it but that should work with COBC true or false.


This condition is equivalent to Low[0] < DonchianChannel.Lower(n)[1], but the question was about the close. So this would be a better match for what @Twiddle asked for:

 
Code
 if (Close[0] < DonchianChannel.Lower(n)[1])
The easiest solution, however, would be:

 
Code
if (Close[0] < MIN (Low, n)[1])

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  #9 (permalink)
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Fat Tails View Post
This condition is equivalent to Low[0] < DonchianChannel.Lower(n)[1], but the question was about the close. So this would be a better match for what @Twiddle asked for:

 
Code
 if (Close[0] < DonchianChannel.Lower(n)[1])
The easiest solution, however, would be:

 
Code
if (Close[0] < MIN (Low, n)[1])

I will give that a try, thanks Fat Tails.

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