Power Spectrum PtByPt (Not in Base Package)

Computes the Power Spectrum, Sxx, of the set of input data.

initialize, when TRUE, initializes the internal state of the VI.
input data is a set of input data.
sample length is the length of each set of incoming data. The VI performs computation on each set of data. The default is 100. sample length must be greater than zero.
Power Spectrum returns the harmonic power content of periodic signals. If input data represents actual measurements in volts, the VI expresses the normalized units of the output sequence Power Spectrum in watts on a 1- basis.
error returns any error or warning condition from the VI. Refer to Point By Point Error Codes for more information about these conditions.