Swing indicator and strategy builder

[NinjaTrader_PaulH]

Hello aprendiz,

Thanks for your reply.

is posible to set the following value to a variable?

Variable = (Swinghigh-Swinglow) * 3 / 7

Yes it is possible but not easily done in the Strategy Builder.

Math is accomplished by using the "Offset" function. Please see the Strategy Builder help guide section " How to offset an item value" on this page: https://ninjatrader.com/support/help...on_builder.htm

However you would not be able to accomplish (Swinghigh-Swinglow) * 3 / 7 in one step. Also using a variable does not allow you to offset.

To accomplish your goal you would need to create 3 custom series (double type) in the "Additional data" window in the Custom series section.

In a set without conditions (The sequence is important):
1) Assign the first custom series to the swing high and you offset the swing high by subtracting the swinglow
2) Assign the 2nd custom series to the first custom series and offset by multiplying times 3
3) Assign the 3rd custom series to the 2nd custom series and offset that by dividing by 7.
The 3rd custom series would then represent (Swinghigh-Swinglow) * 3 / 7

I've attached an example of what the finished set would look like:




Note: When assigning a custom series to a custom series, you will have to look in the Misc>Custom series> and select the series to use as the input.

[aprendiz]

Thanks.

Already done, but now I would like to know if I can draw a line similar as the swinghigh?

This is what I'm trying but nothing hapens....

This are the lines I want to draw: LineHigh and LineLow are variables (double)



And this is what i'm trying and not working:




Not sure about parameters:


Thanks again for your help

[NinjaTrader_PaulH]

Hello aprendiz,

Thanks for your reply.

The line you are drawing has the same start and end bars ago, of 0 (zero) so nothing can be drawn.

You might trying using the bars ago set to the same as the strength setting of the swing indicator.

[laoshr]

Hello,
I'm using the Strategy Builder and trying to find the last 4 swing highs and lows using the "Swing" indicator. I need to track those swing points. I'm a complete novice and have tried searching for a possible solution but have not found any answer (that I understand). Any help would be greatly appreciated.
Thank you for anyone's time in helping with this.

[NinjaTrader_PaulH]

Hello laoshr,

Thanks for your post.

The Swing indicator, in the strategy builder, is limited to providing the current swing high or swing low values.

To keep track of the last 4 swing high values you would need to create 4 double type variables. Named, for example SH1, SH2, SH3, SH4. In a set, you would check to see if the current swing high is NOT equal to SH1. When that condition is true the action then would be to assign SH4 = SH3, SH3 = SH2, SH2 = SH1, and SH1 = to the latest swing high. So you end up shifting back the swing highs when a new one is found. You would follow the same process for the swing lows but using different variables.

Note that you would need to shift them in order. Here is an example screenshot of what that would look like:

[laoshr]

Thank you, Paul
I was on the right track but was missing to check if the current is not equal.
Thank you for your time.
James

[laoshr]

Hello Paul,
I got the swings recording correctly. I was trying to figure out the best option (for a novice) to have the swing High and Lows stay printed on the chart until there is a close above a swing high or below a swing low. Currently whenever there is a new High or Low the previous High or Low stops printing across the screen.
Thank you for your time.
James

[NinjaTrader_PaulH]

Hello James,

Thanks for your reply.

There is no means to change the indicator behavior from a strategy.

For a visual presentation, you could add another indicator called SwingRays that, when using the same strength setting, will draw rays to the right edge of the chart and when crossed by price will redraw the ray to be a line from the start point to the price where it crossed. Again this is a visual only indicator as it does not provide an output a strategy can use.

This indicator is publicly available on our NinjaTrader Ecosystem website:

• https://ninjatraderecosystem.com/use...ad/swingrays2/

Here is a basic guideline of how to import NinjaScript add-ons in NinjaTrader 8:

Note — To import NinjaScripts you will need the original .zip file.

To Import:

1. Download the NinjaScripts to your desktop, keep them in the compressed .zip file.
2. From the Control Center window select the menu Tools > Import > NinjaScript Add-on...
3. Select the downloaded .zip file
4. NinjaTrader will then confirm if the import has been successful.

Critical - Specifically for some NinjaScripts, it will prompt that you are running newer versions of @SMA, @EMA, etc. and ask if you want to replace, press 'No'

Once installed, you may add the indicator to a chart by:

• Right-click your chart > Indicators... > Select the Indicator from the 'Available' list on the left > Add > OK

Here is a short video demonstration of the import process:

• Install a 3rd Party Indicator or App

The NinjaTrader Ecosystem website is for educational and informational purposes only and should not be considered a solicitation to buy or sell a futures contract or make any other type of investment decision. The add-ons listed on this website are not to be considered a recommendation and it is the reader's responsibility to evaluate any product, service, or company. NinjaTrader Ecosystem LLC is not responsible for the accuracy or content of any product, service or company linked to on this website.

[laoshr]

Thanks, Paul.
I did find the swingrays indicator that you created . I have a few questions.
If I'm using the strategy builder can I use the swingrays to plot on the chart?
Then if I move the strategy to an indicator will the swingrays still plot on the chart?
If it is possible to use the swingrays and plot on the chart, can I use a color and style plot that we discussed in our other thread on color plots?
Thank you for your expertise and time.
James

[NinjaTrader_PaulH]

Hello James,

Thanks for your reply.

Clarification: I did not create the original indicator which was/is available in NinjaTrader7, I converted it for use in NinjaTrader8 as a courtesy for the community when we launched NinjaTrader8.

If I'm using the strategy builder can I use the swingrays to plot on the chart?

Yes, you can do this by creating a new set and adding a condition of Indicator>SwingRays, equals, Misc>Numeric Value, 0. To show the indicator, you will have to check the "plot on chart" option. Please note that this is a bogus condition and is only used so you can click the "Plot on chart" option. This option merely adds the indicator to the chart as a convenience factor for you, it has no value in the Strategy Builder.

Then if I move the strategy to an indicator will the swingrays still plot on the chart?

To clarify, if you convert a strategy to an indicator then no you cannot use AddChartIndicator() in an indicator (AddChartIndicator() is what the strategy builder is doing for you when you select Plot on chart).

If it is possible to use the swingrays and plot on the chart, can I use a color and style plot that we discussed in our other thread on color plots?

I'm not sure I understand what you are wanting to do specifically, can you clarify?

[laoshr]

Thanks for the quick reply, Paul.
I guess what I'm wanting to do is to combine the indicators since they will not plot on the chart with an indicator.
Is it possible to combine the indicator I'm working on and the swingrays so it plots on the chart and use the swing highs and lows in the variables I've created?
Thanks again.
James

[NinjaTrader_PaulH]

Hi James,

Thanks for your reply.

I am getting a bit confused about what you are doing.

Please write into ScriptingSupport[at]NinjaTrader[dot]com, mark the e-mail Atten:Paul. (replace [at] with @ and [dot] with . )

Please include a screenshot of a chart of what you want to do along with your descriptions.

Thanks in advance.

[laoshr]

Thanks Paul.
Sorry for my lack of knowledge here.
I wanted to use the swingrays and also plot an EMA with a shaded region between the ema high and ema low.
I was able to get them combined but the ema shading stops plotting before the end of the chart (see screenshot).


Not sure if there is any help with this.
Thanks for any feedback.
James

[s.kinra]

Thanks Paul.
Sorry for my lack of knowledge here.
I wanted to use the swingrays and also plot an EMA with a shaded region between the ema high and ema low.
I was able to get them combined but the ema shading stops plotting before the end of the chart (see screenshot).


Not sure if there is any help with this.
Thanks for any feedback.
James

Hello James,
I answered you in below thread:-

https://ninjatrader.com/support/forum/forum/ninjatrader-8/indicator-development/1122506-drawingobject-index/page2

You asked me the same question in diff thread, just linking it to avoid any confusion for anybody looking for it.
Hope it helps!

[laoshr]

Thank you both Paul and s.kinra for all your help. This forum has been a real asset for those who are trying to learn and develop on the NinjaTrader platform.
Thank you both again.
James