| skew {retimes} | R Documentation |
Calculate the skewness index of an empirical distribution.
skew(x)
x |
Vector of data. |
The skewness measures the asymmetry of a probability distribution. If a positive skewness identifies a greater right tail, a negative skewness is symptom of a greater left tail of the distribution.
The skewness is calculated as: k_{3} / k_{2}^{1.5}, where k_{2} and k_{3} are respectively the second and the third moment of the distribution.
The skewness index.
Davide Massidda davide.massidda@humandata.it
# Vector of reaction times from Heathcote (1996):
RT <- c(474.688, 506.445, 524.081, 530.672, 530.869,
566.984, 582.311, 582.940, 603.574, 792.358)
skew(RT)