slib_lang_exists_tmp=yes

slib_title=Variance
slib_parms=1\
 ,[data] or [data],[weight]

slib_out=the empirical variance and the unbiased variance estimator of \
  data x_1,..,x_n i.e. sum((x_i-mean)^2)/n, sum((x_i-mean)^2)/(n-1).
slib_comment=Data and weight can be recognized under many formats, \
 in particular as a matrix (with data before weight).
