shared
Class BadCategorizer

java.lang.Object
  |
  +--shared.Globals
        |
        +--shared.Categorizer
              |
              +--shared.BadCategorizer

public class BadCategorizer

extends Categorizer

The BadCategorizer class is used for repeated references to categorizers that either don't exist or are not specified. All methods other than constructor and destructor dispay fatal_error messages. This allows faster comparison using is_bad_categorizer() and prevents some unnecessary waste of memory.

Fields inherited from class shared.Categorizer

CATEGORIZER_ID_BASE, CLASS_ATTR_CATEGORIZER, CLASS_ATTR_EQ_CATEGORIZER, CLASS_ATTR_SUBSET_CATEGORIZER, CLASS_BAD_CATEGORIZER, CLASS_BAGGING_CATEGORIZER, CLASS_CASCADE_CATEGORIZER, CLASS_CLUSTER_CATEGORIZER, CLASS_CONST_CATEGORIZER, CLASS_CONSTRUCT_CATEGORIZER, CLASS_DISC_CATEGORIZER, CLASS_DISC_NODE_CATEGORIZER, CLASS_DTREE_CATEGORIZER, CLASS_IB_CATEGORIZER, CLASS_LAZYDT_CATEGORIZER, CLASS_LEAF_CATEGORIZER, CLASS_LINDISCR_CATEGORIZER, CLASS_MAJORITY_CATEGORIZER, CLASS_MULTI_SPLIT_CATEGORIZER, CLASS_MULTITHRESH_CATEGORIZER, CLASS_NB_CATEGORIZER, CLASS_ODT_CATEGORIZER, CLASS_ONE_R_CATEGORIZER, CLASS_OPTION_CATEGORIZER, CLASS_PROJECT_CATEGORIZER, CLASS_RDG_CATEGORIZER, CLASS_STACKING_CATEGORIZER, CLASS_TABLE_CATEGORIZER, CLASS_THRESHOLD_CATEGORIZER, logOptions

Fields inherited from class shared.Globals

badCategorizer, CONFIDENCE_INTERVAL_Z, DBG, DEFAULT_DATA_EXT, DEFAULT_EPSILON, DEFAULT_EVAL_LIMIT, DEFAULT_LAMBDA, DEFAULT_MAX_EVALS, DEFAULT_MAX_STALE, DEFAULT_MIN_EXP_EVALS, DEFAULT_NAMES_EXT, DEFAULT_SAS_SEED, DEFAULT_SEARCH_METHOD, DEFAULT_SHOW_TEST_SET_PERF, DEFAULT_TEST_EXT, DISPLAY_NAMES, EMPTY_STRING, FIRST_CATEGORY_VAL, FIRST_NOMINAL_VAL, LEFT_NODE, MAX_NUM_CATEGORIES, Mcerr, Mcout, optionServer, optionsFileName, REAL_MAX, RIGHT_NODE, SHOW_TEST_SET_PERF_HELP, SINGLE_QUOTE, STORED_REAL_MAX, TS, UNDEFINED_INT, UNDEFINED_REAL, UNDEFINED_VARIANCE, UNKNOWN_AUG_CATEGORY, UNKNOWN_CATEGORY_VAL, UNKNOWN_NODE, UNKNOWN_NOMINAL_VAL, UNKNOWN_STORED_REAL_VAL, UNKNOWN_VAL_STR

Constructor Summary

BadCategorizer()
Checks if BadCategorizer has not been instantiated and creates one if it has.

Method Summary

AugCategory	categorize(Instance i) Categorizes an Instance.
int	class_id() Deprecated. Java's instanceof operator should be used.
java.lang.Object	clone() Clones this BadCategorizer.
void	display_struct(java.io.BufferedWriter stream, DisplayPref dp) Displays the structure for this categorizer.
int	num_categories() Returns the number of categories in this categorizer.
void	set_used_attr(boolean[] usedAttr) Updates usedAttr to include the attributes used in this categorizer.

Methods inherited from class shared.Categorizer

build_distr, description, get_distr, get_log_level, get_log_options, get_log_stream, get_schema, has_distr, score, set_description, set_distr, set_log_level, set_log_options, set_log_prefixes, set_log_stream, set_original_distr, supports_scoring, total_weight

Methods inherited from class java.lang.Object

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

Constructor Detail

BadCategorizer

public BadCategorizer()

Checks if BadCategorizer has not been instantiated and creates one if it has. Updates "instantiated".

Method Detail

class_id

public int class_id()

Deprecated. Java's instanceof operator should be used.

Identifies this objects class as a BadCategorizer.

Returns:

The number identifing this class. In this case -1.

clone

public java.lang.Object clone()

Clones this BadCategorizer. Displays an error message.

Overrides:

clone in class Categorizer

Returns:

The clone of this BadCategorizer.

display_struct

public void display_struct(java.io.BufferedWriter stream,
                           DisplayPref dp)

Displays the structure for this categorizer. Displays an error message.

Overrides:

display_struct in class Categorizer

Parameters:

stream - The output stream to be written to.

dp - The preferences for displaying.

set_used_attr

public void set_used_attr(boolean[] usedAttr)

Updates usedAttr to include the attributes used in this categorizer. Displays an error message.

Overrides:

set_used_attr in class Categorizer

Parameters:

usedAttr - A boolean array representing attributes. Each element set to TRUE indicates the attribute is used. It is FALSE otherwise. This method sets the appropriate attribute element to true.

num_categories

public int num_categories()

Returns the number of categories in this categorizer. Displays an error message.

Overrides:

num_categories in class Categorizer

Returns:

The number of categories.

categorize

public AugCategory categorize(Instance i)

Categorizes an Instance. Displays an error message.

Overrides:

categorize in class Categorizer

Parameters:

i - The specified Instance.

Returns:

The category the specified Instance is labelled.