org.apache.pig.impl.builtin
Class FindQuantiles

java.lang.Object
  org.apache.pig.EvalFunc<Map<String,Object>>
      org.apache.pig.impl.builtin.FindQuantiles

public class FindQuantiles
extends EvalFunc<Map<String,Object>>

Field Summary

static String	QUANTILES_LIST
static String	WEIGHTED_PARTS

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

FindQuantiles()

FindQuantiles(String[] args)

Method Summary

Map<String,Object>

exec(Tuple in) first field in the input tuple is the number of quantiles to generate second field is the *sorted* bag of samples

Methods inherited from class org.apache.pig.EvalFunc

finish, getArgToFuncMapping, getCacheFiles, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, isAsynchronous, outputSchema, progress, setPigLogger, setReporter, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

QUANTILES_LIST

public static final String QUANTILES_LIST

See Also:

Constant Field Values

WEIGHTED_PARTS

public static final String WEIGHTED_PARTS

See Also:

Constant Field Values

Constructor Detail

FindQuantiles

public FindQuantiles()

FindQuantiles

public FindQuantiles(String[] args)

Method Detail

exec

public Map<String,Object> exec(Tuple in)
                        throws IOException

first field in the input tuple is the number of quantiles to generate second field is the *sorted* bag of samples

Specified by:

exec in class EvalFunc<Map<String,Object>>

Parameters:

in - the Tuple to be processed.

Returns:

result, of type T.

Throws:

IOException