Seasonality test based on the coefficient of variance for the variable and lagged component series. A result of 1 signifies no seasonality present.
a numeric vector.
Returns a matrix of all periods exhibiting less coefficient of variance than the variable with
"all.periods"; and the single period exhibiting the least coefficient of variance versus the variable with
"best.period". If no seasonality is detected,
NNS.seas will return ("No Seasonality Detected").
Fred Viole, OVVO Financial Systems
Viole, F. and Nawrocki, D. (2013) "Nonlinear Nonparametric Statistics: Using Partial Moments" http://amzn.com/1490523995
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