68a7d5553fa4cef09e0159ac5e100a6424172386,src/metamodels/crosscat.py,CrosscatMetamodel,create_generator,#CrosscatMetamodel#Any#Any#Any#Any#,500

Before Change

                seed = struct.pack("<QQQQ", 0, 0, k, n)
                uniform = weakprng.weakprng(seed).weakrandom_uniform
                randomly_permute(rowids, uniform)
                rowids = rowids[:k]
                cursor = ((rowid,) for rowid in rowids)
            else:
                cursor = bdb.sql_execute("""
                     SELECT _rowid_ FROM %s ORDER BY _rowid_ ASC
                """ % (qt,))

After Change

                seed = struct.pack("<QQQQ", 0, 0, k, n)
                uniform = weakprng.weakprng(seed).weakrandom_uniform
                samples = [None] * k
                for i, row in enumerate(cursor):
                    r = uniform(i + 1)
                    if r < k:
                        samples[r] = row
                cursor = [s for s in samples if s is not None]
            else:
                cursor = bdb.sql_execute("""
                     SELECT _rowid_ FROM %s ORDER BY _rowid_ ASC

Instances