8.4.2. Analysis

You can modify drawn data with these functions.

FFT (Fast Fourier Transform) is a mathematical algorithm that takes a t ime-domain data and maps it into its frequency-domain.

FFT	Refresh	Refresh the properties
	FFT Type	Type of FFT: Magnitude, Phase, PSD (Power Spectral Density).
	Source Series	Select series used in FFT analysis.
	Add to New Plot	If check, draw series to the new plot window. If no, draw series to the current plot window.
	Add to Database	If check, add result data to database window.
	Series Name	Set series name.
	Window Method	Window Method Type: Square, Bartlett, Welch, Hanning, Hamming, Blackman.
	Number of Points	Type for number of points: Auto, 2^n
	N	Number n used in 2^n.
	X-Axis Region	Region of axis: Entire Region, Specified Region.
	Min	Minimum x value.
	Max	Maximum x value.
	Run Function	Run Function.

Filter can remove or emphasize the curve data with the specific region of time signal. Two methods are supplied for filtering. One is a transfer function. The other is a Butterworth filter.

Filter	Refresh	Refresh the properties
	Filter Type	Type of Filer: Transfer Function, Butter Worth.
	Source Series	Select series used in simple math analysis.
	Add to New Plot	If check, draw series to the new plot window. If no, draw series to the current plot window.
	Add to Database	If check, add result data to database window.
	Series Name	Set series name.
	Type	Low Pass, High Pass, Band Pass, Band Stop
	Order	Set the order
	Cutoff	Set the cut off frequency (Hz).
	Low Cutoff	Set the low cut off frequency (Hz).
	High Cutoff	Set the high cut off frequency (Hz).
	Numerator	Set the numerator.
	Denominator	Set the denominator.
	Run Function	Run Function.

Math has four arithmetic operations can be performed between curve data.

Math	Refresh	Refresh the properties.
	Math Type	Type of Math: Plus, Minus, Multiply, Divide.
	Source Series1	Select series user in simple math.
	Source Series2	Select series used in simple math.
	Add to New Plot	If check, draw series to the new plot window. If no, draw series to the current plot window.
	Add to Database	If check, add result data to database window.
	Series Name	Set series name.
	Run Function	Run Function.