MAINT Improve Nearest Neighbor documentation + code consistency #19793
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Fix typos
Use
self.metric == "precomputed"
instead of combination of bothself.effective_metric
andself.metric
. (self.effective_metric
is only different fromself.metric
only for minkowski metric. For"precomputed"
metric,self.effective_metric
andself.metric
are equivalent.)Usen_samples_fit
instead of a combination of bothn_indexed
andn_samples_fit
Other minor changes