Module datarush.analytics

Package com.pervasive.datarush.analytics.stats

Enum Class DetailLevel

java.lang.Object

java.lang.Enum<DetailLevel>

com.pervasive.datarush.analytics.stats.DetailLevel

All Implemented Interfaces:

Serializable, Comparable<DetailLevel>, java.lang.constant.Constable

public enum DetailLevel
extends Enum<DetailLevel>

Controls the detail level of the statistics calculated by SummaryStatistics. You can thus trade execution time for level of detail.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
MULTI_PASS	Computes all statistics.
SINGLE_PASS_ONLY	Computes all statistics that can be calculated in a single pass over the data.
SINGLE_PASS_ONLY_SIMPLE	Computes all simple statistics that can be calculated in a single pass over the data.

Method Summary

Modifier and Type	Method	Description
static DetailLevel	valueOf(String name)	Returns the enum constant of this class with the specified name.
static DetailLevel[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

SINGLE_PASS_ONLY_SIMPLE

public static final DetailLevel SINGLE_PASS_ONLY_SIMPLE

Computes all simple statistics that can be calculated in a single pass over the data. This includes the following:

1. totalFrequency: calculated for all fields
2. missingFrequency: calculated for all fields
3. min: calculated for all fields
4. max: calculated for all fields
5. mean: calculated for fields of type int, long, float, or double
6. stddev: calculated for fields of type int, long, float, or double
7. variance: calculated for fields of type int, long, float, or double
8. sum: calculated for fields of type int, long, float, or double
9. sumSquares: calculated for fields of type int, long, float, or double

When configured with this setting, SummaryStatistics will run the fastest.

SINGLE_PASS_ONLY

public static final DetailLevel SINGLE_PASS_ONLY

Computes all statistics that can be calculated in a single pass over the data. This includes everything that was available via SINGLE_PASS_ONLY_SIMPLE plus the following:

1. correlation: calculated for fields of type int, long, float, or double
2. covariance: calculated for fields of type int, long, float, or double

MULTI_PASS

public static final DetailLevel MULTI_PASS

Computes all statistics. This includes everything that was available via SINGLE_PASS_ONLY plus the following:

1. intervalCounts: calculated for fields of type int, long, float, or double
2. valueCounts: calculated for all fields
3. quantiles: calculated for fields of type int, long, float, or double
4. median: calculated for fields of type int, long, float, or double
5. interQuartileRange: calculated for fields of type int, long, float, or double

Method Details

values

public static DetailLevel[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static DetailLevel valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null