NinjaScript > Language Reference > Common > Analytical

Definition

Counts the number of instances the test condition occurs over the look-back period expressed in bars.

Note: This method does NOT work on multi-series strategies and indicators.

An int value representing the number of occurrences found

CountIf(Func<bool> condition, int period)

condition	A true/false expression
period	Number of bars to check for the test condition

Tip: The syntax for the "condition" parameter uses lambda expression syntax


// If in the last 10 bars we have had 8 up bars then go long if (CountIf(() => Close[0] > Open[0], 10) > 8) EnterLong();