Scalar FunctionsSeries Functions
series_fft
The discrete Fourier transform of a series, as two series: the real parts and the imaginary parts.
One argument holds the real parts, with imaginary parts zero. Given one name, the result is the real parts; (re, im) = series_fft(x) names both. Null for an empty series.
Syntax
series_fft(x_real, x_imaginary)Parameters
Prop
Type
Returns: dynamic
Examples
Example 1
print series_fft(dynamic([5, 2, 8, 3, 5, 2, 8, 3]))| print_0_real (dynamic) | print_0_imag (dynamic) |
|---|---|
| [36.0,0.0,-6.0,0.0,16.0,0.0,-6.0,0.0] | [0.0,0.0,2.0,0.0,0.0,0.0,-2.0,0.0] |