syntax for highest high

[gordongekko]

Can somebody explain this syntax to me:

MAX(High, integer - 1)[1]

[NinjaTrader_JoshG]

Hello gordongekko,
Thanks for your post.

That method is referencing the largest value for historical "High" prices over a period. That period is equal to whatever the value of "integer" is minus one.
The "[1]" at the end is a "BarsAgo" value that indicates the reference point for this calculation is one bar ago.

I am including the relevant help guide documentation, for your convenience.

MAX()
https://ninjatrader.com/support/help...aximum_max.htm

High
https://ninjatrader.com/support/help...n-us/?high.htm

Series<T>
https://ninjatrader.com/support/help...s/?seriest.htm

BarsAgo- Referencing the Correct Bar
https://ninjatrader.com/support/foru...83&postcount=2

Using [] Brackets

https://ninjatrader.com/support/forum/showpost.php?p=413783&postcount=2

Please let me know if you have any further questions.

[gordongekko]

By reference point do you mean it starts scanning backwards until it hits that bar number and then gets the highest high and assigns it to a variable. Or does it stop at that [1] bar. For example here is a more detailed version with a variable that would actually be used.


In this example stoch2 is a bar number in the 0 array that was obtained by iterating through the historical data using a for loop. In this case the profitTarget is going to be the highest price high the last time the stochastic was > 80.

private double profitTarget = 0;

profitTarget = stoch2 > 1 ? MAX(High, stoch2 - 1)[1] : High[1];

[NinjaTrader_JoshG]

The BarsAgo value is what the status of that series was at that bar. For example, MAX(High,20)[5] is referencing the highest "High" over a 20 bar look back period starting 5 bars ago.

For comparison, MAX(High,20)[0] is referencing the highest "High" of a 20 bar look back period starting at the current bar.

The forum post below should be helpful in explaining this.

BarsAgo- Referencing the Correct Bar
https://ninjatrader.com/support/foru...83&postcount=2

[ronaldgreene828]

Can the Max function work with a list of variables?

MAX[Var1, Var2, . . . ] etc.

[NinjaTrader_Kate]

Hello ronaldgreene828,

Thank you for your reply.

No. The MAX() function requires a Series<double> and a lookback period over which to look at the series to find the highest value within. It would not work with a list of variables. You would simply want to compare the variables to each other, for which you can use Math.Max(). Publicly available documentation for Math.Max() can be found here:

https://docs.microsoft.com/en-us/dotnet/api/system.math.max?view=netframework-4.8

Please let us know if we may be of further assistance to you.