S3 methods for
1 2 3 4 5 6 7 8
further arguments passed to of from other methods.
weighted.mean methods set the uncertainty as
the maximum of the standard deviation of the mean and the (weighted) mean of the uncertainty.
median method sets the uncertainty as
1.253 * errors(mean(x)),
which is derived from the asymptotic variance formula of the median. Note that
this value is valid only if the sample is big enough.
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