Robust Moments for the NIG
Computes the first four robust moments for the Normal Inverse Gaussian Distribution.
nigMED(alpha = 1, beta = 0, delta = 1, mu = 0) nigIQR(alpha = 1, beta = 0, delta = 1, mu = 0) nigSKEW(alpha = 1, beta = 0, delta = 1, mu = 0) nigKURT(alpha = 1, beta = 0, delta = 1, mu = 0)
alpha, beta, delta, mu |
are numeric values where
|
All values for the *nig functions are numeric vectors:
d* returns the density,
p* returns the distribution function,
q* returns the quantile function, and
r* generates random deviates.
All values have attributes named "param" listing
the values of the distributional parameters.
Diethelm Wuertz.
## nigMED - # Median: nigMED(alpha = 1, beta = 0, delta = 1, mu = 0) ## nigIQR - # Inter-quartile Range: nigIQR(alpha = 1, beta = 0, delta = 1, mu = 0) ## nigSKEW - # Robust Skewness: nigSKEW(alpha = 1, beta = 0, delta = 1, mu = 0) ## nigKURT - # Robust Kurtosis: nigKURT(alpha = 1, beta = 0, delta = 1, mu = 0)
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