Github user holdenk commented on a diff in the pull request:
https://github.com/apache/spark/pull/15496#discussion_r89464558
--- Diff: python/pyspark/ml/linalg/__init__.py ---
@@ -705,6 +705,22 @@ def __eq__(self, other):
return Vectors._equals(self.indices, self.values,
list(xrange(len(other))), other.array)
return False
+ def __getattr__(self, item):
+ def wrapper(*args, **kwargs):
+ if _have_scipy:
+ csr = scipy.sparse.csr_matrix((np.append(self.values, 0),
+ np.append(self.indices,
self.size-1),
+ [0, len(self.values)]))
+ func = getattr(csr, item)
+ result = func(*args, **kwargs)
+ if isinstance(result, scipy.sparse.csr.csr_matrix):
+ return
SparseVector(result.shape[1],result.indices,result.data)
+ return result
+ else:
+ raise AttributeError(
+ "'{0}' object has no attribute '{1}' or SciPy not
installed.".format(self.__class__, item))
--- End diff --
This error message would probably be better of just saying SciPy not
installed since its on the else branch of `if _have_scipy` unless I'm missing
something?
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