How to Build a Custom Scan

April 10th, 2013, 08:33 PM

I have been trying to build a custom scan using PPO & ADX.

I can get a label with the PPO and ADX and color the label based upon the PPO and ADX action but cannot get a scan to work.

I want to scan for stocks that have PPO down from 5 days ago and ADX up from 5 days ago.

Following is the code I have. Can someone suggest how to get this to run as a scan?

Thanks!
Brad

#PPO ADX Label

Input PPOShortEMA = 9;
Input PPOLongEMA = 26;
Input ADXLength = 14;

Def PPO = (MovAvgExponential(Close,PPOShortEMA) - MovAvgExponential(Close,PPOLongEMA))/MovAvgExponential(Close,PPOLongEMA);
Def PreviousPPO = (MovAvgExponential(Close,PPOShortEMA)[5] - MovAvgExponential(Close,PPOLongEMA)[5])/MovAvgExponential(Close,PPOLongEMA)[5];
Def CurrentADX = ADX(ADXLength);
Def PreviousADX = ADX(ADXLength)[5];

addlabel(yes,concat("PPO ", ROUND(PPO*100,2)), if PPO < PreviousPPO then color.RED else if PPO > PreviousPPO then color.green else color.gray);
addlabel(yes,concat("ADX ", ROUND(ADX(ADXLength),2)), if CurrentADX > PreviousADX then color.RED else if CurrentADX < PreviousADX then color.green else color.gray);

April 12th, 2013, 12:18 PM

Hi, unless I'm mistaken, TOS Scan->Stock Hacker seems to have only custom study filters in the form of expressions.

So I made one custom filter for PPO down from 5 days ago & ADX up from 5 days ago, and then another one for the reverse conditions.

Then clicking on scan came up with a result list. Which the results can be saved as a watchlist and then seen in "Marketwatch" -> Quotes

Scripts for custom study filters. (reverse "<" and ">" operators for reverse condition custom study filter)
-------------------------------------------

((MovAvgExponential(Close,9) - (MovAvgExponential(Close,26)/MovAvgExponential(Close,26)))
< (MovAvgExponential(Close,9)[5]- (MovAvgExponential(Close,26)[5])/MovAvgExponential(Close,26)[5]))

and

ADX(14) > ADX(14)[5]

script for column headers:
------------------------------------

# PPO down from 5 days ago

Input PPOShortEMA = 9;
Input PPOLongEMA = 26;
Input ADXLength = 14;

Def PPO = (MovAvgExponential(Close,PPOShortEMA) - MovAvgExponential(Close,PPOLongEMA))/MovAvgExponential(Close,PPOLongEMA);
Def PreviousPPO = (MovAvgExponential(Close,PPOShortEMA)[5] - MovAvgExponential(Close,PPOLongEMA)[5])/MovAvgExponential(Close,PPOLongEMA)[5];
Def CurrentADX = ADX(ADXLength);
Def PreviousADX = ADX(ADXLength)[5];

plot result = PPO;
result.assignValueColor(Color.gray);

assignBackgroundColor(if PPO < PreviousPPO then color.RED else if PPO > PreviousPPO then color.green else color.gray);

-------------------------------------

#ADX up from 5 days ago

Input PPOShortEMA = 9;
Input PPOLongEMA = 26;
Input ADXLength = 14;

Def PPO = (MovAvgExponential(Close,PPOShortEMA) - MovAvgExponential(Close,PPOLongEMA))/MovAvgExponential(Close,PPOLongEMA);
Def PreviousPPO = (MovAvgExponential(Close,PPOShortEMA)[5] - MovAvgExponential(Close,PPOLongEMA)[5])/MovAvgExponential(Close,PPOLongEMA)[5];
Def CurrentADX = ADX(ADXLength);
Def PreviousADX = ADX(ADXLength)[5];

plot result = PPO;
result.assignValueColor(Color.gray);

assignBackgroundColor( if CurrentADX > PreviousADX then color.RED else if CurrentADX < PreviousADX then color.green else color.gray);

April 17th, 2013, 10:15 AM

Thanks. This gives me what I asked for but not what I wanted. Back to the drawing board to refine my parameters.

This will allow me to get the scan I want as soon as I get the parameters correct.

July 31st, 2013, 09:50 PM

I am always getting an "RESULT_ERROR Script execution timeout" when I try to scan many of my custom filters.

Some work, but many (like the following) will fail. Do you think its a temporary error by TOS or I am doing something wrong?

Code

close("period" = AggregationPeriod.DAY) is greater than DarvasBox()."Upper Band" from 1 bars ago

Any tip will be much appreciated! Thanks

December 16th, 2013, 11:26 PM

Hi,

I was wondering if you were able to come up for a scan or have seen an indicator for the PPO & ADX scan you were working on. Were you looking for candidates for the PPO/ADX "squeeze'? ( I'm not sure what else to call it)
I am working on a couple things for that trade. Let me know you if that is a trade you do. I have seen a good webinar by Wendy Kirkland discussing how she trades that in her portfolio. Thanks!

Josh

December 25th, 2014, 12:29 PM

In reference to this post,
does anyone have the think-script to place in TOS to scan for these PPO pinch as a scan setup
or any PPO scan.

October 6th, 2016, 08:12 PM

I have been working on Kirkland's squeeze in Ninjatrader as a system and not just a scanner. I have tried a number of ways with comparing a bunch of adx(n)s and ppo(n)s and setting a flag for each and when both hit within some spread buying. Sometimes the "squeeze" doesn't come at the same precise time. I have also tried the Ninjatrader Slope function for adx() and ppo() and setting buy signals based on that. It does work, but usually on all squeezes and not just the major ones. I am looking to do a ratio so I can get the really close squeezes. Maybe by normalizing the adx/ppo ratio. Any ideas?

https://gfullmer.atwebpages.com/screen.html

December 22nd, 2017, 04:03 PM

- Ken

How to Build a Custom Scan

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How to Build a Custom Scan