Performance Index

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PerformanceIndex(Vector)
PFI(Vector)

Overview
The Performance indicator calculates price performance as a normalized value or percentage.

Interpretation
A Performance indicator shows the price of a security as a normalized value. If the Performance indicator shows 50, then the price of the underlying security has increased 50% since the start of the Performance indicator calculations.

Conversely, if the indictor shows -50, then the price of the underlying security has decreased 50% since the start of the Performance indicator calculations.

Recommended Parameters
Vector: CLOSE

Example
set BUY = PFI(CLOSE) > 45
Evaluates to buy when the performance index is over 45%

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