Installed With: Statistical Process Control Toolkit
Computes statistics on the input array sample X.
sample X is the individual observations on which to compute sample statistics.
median is the center value of the points in sample X when sorted in ascending order. If the number of points in sample X is even, the median is the average of the center pair of points.
mean is the average of the points in sample X.
sample std dev is the sample standard deviation computed as:where n is the number of points in X.
skewness is the degree of asymmetry in the distribution of the points in sample X around the mean. A normal distribution has a skewness of 0. Skewness is computed as
where n is the number of points in X.
kurtosis is the relative peakedness or flatness of the distribution of the points in sample X. A normal distribution has a kurtosis of 3. Kurtosis is computed as