skewness | R Documentation |
This function computes the skewness.
skewness(x, as.na = NULL, check = TRUE)
x |
a numeric vector. |
as.na |
a numeric vector indicating user-defined missing values,
i.e. these values are converted to |
check |
logical: if |
The same method for estimating skewness is used in SAS and SPSS. Missing values
(NA
) are stripped before the computation. Note that at least 3 observations
are needed to compute skewness.
Returns the estimated skewness of x
.
Takuya Yanagida takuya.yanagida@univie.ac.at
Rasch, D., Kubinger, K. D., & Yanagida, T. (2011). Statistics in psychology - Using R and SPSS. New York: John Wiley & Sons.
kurtosis
# Set seed of the random number generation
set.seed(123)
# Generate random numbers according to N(0, 1)
x <- rnorm(100)
# Compute skewness
skewness(x)
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