| Library: | times |
| See also: | fft invfft spec |
| Macro: | pgram | |
| Description: | computes and plots the raw (log) periodogram of a time series |
| Usage: | y = pgram(x {,opt}) | |
| Input: | ||
| x | vector | |
| opt (optional) | integer; If opt=1 (Default) the periodogram is returned, otherwise the log periodogram | |
| Output: | ||
| y | vector | |
library("times")
randomize (0)
x=genarma(0.9,0,normal(100))
y=pgram(x)
y[1:5]
generates a graphical object wich represents the periodogram of a time series Contents of _tmp [1,] 50.882 [2,] 42.724 [3,] 40.861 [4,] 13.082 [5,] 7.3546
| Library: | times |
| See also: | fft invfft spec |