Returns the sample ranks of the values in a vector. Ties (i.e.,
equal values) and missing values can be handled in several ways.
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NOT USED–for compatability with native R functions only.
SciDB supports average or random.
scidb reference object.
If all components are different (and no 'NA's), the ranks are well
defined, with values in 'seq_len(x)'. With some values equal
(called 'ties'), the argument 'ties.method' determines the result
at the corresponding indices.
random method puts these in random order whereas the default,
average, replaces them by their mean.
B. W. Lewis <email@example.com>
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