Vector functions
A vector is a structure with a series of values: variate, text or factor. These functions form
summaries for each set of corresponding values of a list of vectors:
Arithmetic sums
Synonym for VSUMS
Averages
Median values
Minimum values
Maximum values
Range of values
Covariances
Correlation
Standard deviations
Standard errors of the means
Skewness
Kurtosis
Variances
Nunbers of observations (non-missing values)
Numbers of values
Numbers of missing values
Positions of values