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how detect if a line is smaller than itself previous ?
DLEGION
 Post subject: how detect if a line is smaller than itself previous ? Post rating: 0   New post Posted: Sat 12 Oct, 2013, 11:45 

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hi all

i try to explain..it is simple but my english not good... here it is:
my objective is to detect if an UPgoing EMA suddenly start go DOWN.
in my idea i should detect if EMA on "last candle" is bigger than previous one (this mean bullish EMA).
when suddenly "last candle" EMA is smaller than previous candle EMA, (this means bearish EMA), in this moment, on candle close i wish detect this reverse.

thanks for every help !

bye!
 
vadim_berezhnoj
 Post subject: Re: how detect if a line is smaller than itself previous ? Post rating: 0   New post Posted: Mon 14 Oct, 2013, 10:11 
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Greetings.

To understand if SMA is going up or down you need to compare last two values of it.

Image

And if you want to find turning-point in SMA you need last three values. And you need to check if SMA have made V shape turn.

Image


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DLEGION
 Post subject: Re: how detect if a line is smaller than itself previous ? Post rating: 0   New post Posted: Mon 14 Oct, 2013, 13:26 

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really thanks for your help, it was more than i hoped! :)
a clear explanation, with a working example too...really thanks!
bye!
 
flyswing
 Post subject: Re: how detect if a line is smaller than itself previous ? Post rating: 0   New post Posted: Thu 17 Oct, 2013, 09:49 
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Hi all,

Well good job guys !

Anyway, I notice that your strategy retrieve 30 SMA about last candles AND the current candle (shift = 0).

Why do you need to retrieve SMA concerning a current candle whom is not yet formed ?

Thanks for your answer and good trades !
 
vadim_berezhnoj
 Post subject: Re: how detect if a line is smaller than itself previous ? Post rating: 0   New post Posted: Thu 17 Oct, 2013, 10:54 
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onCandle event happens when candle is closed.
So Shift=0 will give you a value of candle just closed.
One Tick later it would be new candle.
 
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