SQL functions for balanced data sets sampling. More...

Functions
void	balance_sample (text source_table, text output_table, text class_col, varchar class_sizes, integer output_table_size, text grouping_cols, boolean with_replacement, boolean keep_null)

void	balance_sample (text source_table, text output_table, text class_col, varchar class_sizes, integer output_table_size, text grouping_cols, boolean with_replacement)

void	balance_sample (text source_table, text output_table, text class_col, varchar class_sizes, integer output_table_size, text grouping_cols)

void	balance_sample (text source_table, text output_table, text class_col, varchar class_sizes, integer output_table_size)

void	balance_sample (text source_table, text output_table, text class_col, varchar class_sizes)

void	balance_sample (text source_table, text output_table, text class_col)

varchar	balance_sample (varchar message)

varchar	balance_sample ()

Detailed Description

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Date: 12/14/2017

See also: Given a table, balanced sampling returns a sampled data set with specified proportions for each class (defaults to uniform sampling).

Function Documentation

◆ balance_sample() [1/8]

void balance_sample	(	text	source_table,
		text	output_table,
		text	class_col,
		varchar	class_sizes,
		integer	output_table_size,
		text	grouping_cols,
		boolean	with_replacement,
		boolean	keep_null
	)

◆ balance_sample() [2/8]

void balance_sample	(	text	source_table,
		text	output_table,
		text	class_col,
		varchar	class_sizes,
		integer	output_table_size,
		text	grouping_cols,
		boolean	with_replacement
	)

◆ balance_sample() [3/8]

void balance_sample	(	text	source_table,
		text	output_table,
		text	class_col,
		varchar	class_sizes,
		integer	output_table_size,
		text	grouping_cols
	)

◆ balance_sample() [4/8]

void balance_sample	(	text	source_table,
		text	output_table,
		text	class_col,
		varchar	class_sizes,
		integer	output_table_size
	)

◆ balance_sample() [5/8]

void balance_sample	(	text	source_table,
		text	output_table,
		text	class_col,
		varchar	class_sizes
	)

◆ balance_sample() [6/8]

void balance_sample	(	text	source_table,
		text	output_table,
		text	class_col
	)

◆ balance_sample() [7/8]

varchar balance_sample ( varchar message )

◆ balance_sample() [8/8]

varchar balance_sample ( )

Functions