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mnouri1975
Posted : Monday, May 25, 2015 11:58:18 AM
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Joined: 3/13/2006
Posts: 25

How ca I write the following PCF:

1- Today's bar close in the uper half of the  range

 

2 -Today's bar  close in the lower half of the range

busterram
Posted : Monday, May 25, 2015 1:26:18 PM
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Joined: 10/9/2011
Posts: 485

Todays mid point is (h+l) / 2

C > (h+l)/2 is close in upper half

C < (h+l)/2 is close in lower half

 

To make it generic say if you want to do close @ top 30%

c > l +  (h-l)*2/3

 

if you want to do close @ bottom 30%

c < h - (h-l)*2/3

 

For 10% you can replace 2/3 to 0.9

For 20% you can replace 2/3 to 0.8

For 40% you can replace 2/3 to 0.6

Hope this helps.

Good luck

 

Bruce_L
Posted : Tuesday, May 26, 2015 10:16:24 AM


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Joined: 10/7/2004
Posts: 65,138

Another option would be to use the built in syntax for stochastics. So top half of range could be written as follows.

STOC1 > 50

Bottom have of range could be written as follows.

STOC1 < 50

Top 30% of range could be written as follows.

STOC1 >= 70

Bottom 30% of range could be written as follows.

STOC1 <= 70

Note that I didn't include = in the top half and bottom half formulas because you would also get 50 when the high equals the open, but we could specifically check for a non-zero range bar. In which case top half of range could be written as follows.

STOC1 >= 50 AND H > L

And bottom half of range could be written as follows.

STOC1 <= 50 AND H > L

Understanding Stochastics



-Bruce
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busterram
Posted : Tuesday, May 26, 2015 11:50:29 AM
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Joined: 10/9/2011
Posts: 485

Bruce,

That was a very good technique using stoc. Cool.

We could use that to figure out stocks in the range top or range bottom in the last X bars.

Thank you,

Bruce_L
Posted : Tuesday, May 26, 2015 12:10:29 PM


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Joined: 10/7/2004
Posts: 65,138

The range over multiple bars is definitely its more traditional use, but it isn't limited to multiple bar situations. It also works for a singel bar.



-Bruce
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busterram
Posted : Tuesday, May 26, 2015 2:51:55 PM
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Joined: 10/9/2011
Posts: 485

Awesome. Thank  you.

Is it fair to say

Stoc10 > 80 is price in the top 20% 10 bar range?

This has some cool applications by adding multiple bar ranges something like price near 50% of the 50 bar range and in the top 10% of the 10 bar range like

Stoc50 > 50 and stoc10 > 90

Thank you Bruce.

 

Bruce_L
Posted : Tuesday, May 26, 2015 2:58:23 PM


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Joined: 10/7/2004
Posts: 65,138

Yes, it is fair to say STOC10 > 80 means price is currently in the top 20% of its 10 bars range. This would also be the case when using STOC10 >= 80 as well. The difference is in if if you would want to count the borderline between the bottom 80% and top 20% as being part of the top 20% of the range or not.



-Bruce
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mnouri1975
Posted : Thursday, May 28, 2015 9:19:50 AM
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Joined: 3/13/2006
Posts: 25

Thanks all. How about how to write the following:

1- One of the last five bars (including the last one) had touched the 50 period EMA (could be from below or above.

 

2- Stochasitic 12,3,3 at one of the last five bars (including the last one) was below 20 

Bruce_L
Posted : Thursday, May 28, 2015 12:12:17 PM


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Joined: 10/7/2004
Posts: 65,138

If number 1 does not include gapping up or down through the moving average as touching and you want to check if the bar touched the exponential moving average at the close of the bar.

(L <= XAVGC50 AND XAVGC50 <= H) OR (L1 <= XAVGC50.1 AND XAVGC50.1 <= H1) OR (L2 <= XAVGC50.2 AND XAVGC50.2 <= H2) OR (L3 <= XAVGC50.3 AND XAVGC50.3 <= H3) OR (L4 <= XAVGC50.4 AND XAVGC50.4 <= H4)

Including gaps from the previous bar would make the formula a bit more complicated.

((H1 < XAVGC50.1 OR L <= XAVGC50) AND (XAVGC50 <= H OR XAVGC50.1 < L1)) OR ((H2 < XAVGC50.2 OR L1 <= XAVGC50.1) AND (XAVGC50.1 <= H1 OR XAVGC50.2 < L2)) OR ((H3 < XAVGC50.3 OR L2 <= XAVGC50.2) AND (XAVGC50.2 <= H2 OR XAVGC50.3 < L3)) OR ((H4 < XAVGC50.4 OR L3 <= XAVGC50.3) AND (XAVGC50.3 <= H3 OR XAVGC50.4 < L4)) OR ((H5 < XAVGC50.5 OR L4 <= XAVGC50.4) AND (XAVGC50.4 <= H4 OR XAVGC50.5 < L5))

A Condition Formula for a simple stochastit 12,3 %K being below 20 on at least one of the most recent 5 bars could be written as follows.

MIN(STOC12.3,5) < 20



-Bruce
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