is_valid_y(y, warning=False, throw=False, name=None)
Condensed distance matrices must be 1-dimensional numpy arrays. Their length must be a binomial coefficient ${n \choose 2}$ for some positive integer n.
The condensed distance matrix.
Invokes a warning if the variable passed is not a valid condensed distance matrix. The warning message explains why the distance matrix is not valid. :None:None:`name` is used when referencing the offending variable.
Throws an exception if the variable passed is not a valid condensed distance matrix.
Used when referencing the offending variable in the warning or exception message.
Return True if the input array is a valid condensed distance matrix.
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