The Hilbert Transform is a technique used to generate inphase and quadrature components of a de-trended real-valued "analytic-like" signal (such as a Price Series) in order to analyze variations of the instantaneous phase and amplitude. HTInPhase returns the Hilbert Transform generated InPhase component of the input Price Series. The InPhase component is used in conjunction with the Quadrature component to generate the phase of the analytic signal (using the ArcTan function) at a specific bar or for the entire Price Series.