Category

General-Purpose Functions

Description

Evaluate an expression with no possibility a of NaN result

Syntax

NoNan(expr, replacement {0})

Parameters

expr - any formula

replacement {0} - any formula

Return Value

The result of the expression if it can be calculated, or replacement if it would result in NaN.

Notes

The default (when only one argument) is to replace NaN with 0. You can optionally specify a different replacement value as needed.

It is not usually necessary to use NoNan in any of the strategy element formulas. The backtest engine already equates "can't be evaluated" (NaN) with "false" or 0 in those formulas. The only exception is EntrySkip, for which "can't be evaluated" means "true" (do skip the entry).

 

 

 

 

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