com.jimmoores.quandl

Enum Transform

java.lang.Object

java.lang.Enum<Transform>

com.jimmoores.quandl.Transform

All Implemented Interfaces:

Serializable, Comparable<Transform>

public enum Transform
extends Enum<Transform>

Enumerated type to represent a server-side pre-processing transformation of the source data.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CUMUL Cumulative sum.
DIFF Row-on-row change.
NONE Leave data unchanged.
NORMALIZE Start at 100.
RDIFF Row-on-row % change.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NONE

public static final Transform NONE

Leave data unchanged.

DIFF

public static final Transform DIFF

Row-on-row change. y'[t] = y[t] - y[t-1]

RDIFF

public static final Transform RDIFF

Row-on-row % change. y'[t] = (y[t] - y[y-1]) / y[t-1]

CUMUL

public static final Transform CUMUL

Cumulative sum. y'[t] = y[t] + y[t-1] + ... + y[0]

NORMALIZE

public static final Transform NORMALIZE

Start at 100. y'[t] = (y[t] / y[0]) * 100

Method Detail

values

public static Transform[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Transform c : Transform.values())
    System.out.println(c);

Returns:

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

valueOf

public static Transform valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name

NullPointerException - if the argument is null