UniqueCountOperator

UniqueCountOperator generates the number of unique values. Unique values are based on exact text match calculation, not a numeric comparison.

All the unique field values are stored in memory as part of this calculation.

final

class UniqueCountOperator : SingleFieldOperator {

this(size_t fieldIndex, MissingFieldPolicy missingPolicy);

SingleFieldCalculator makeCalculator();

class UniqueCountCalculator;

}

Constructors

this this(size_t fieldIndex, MissingFieldPolicy missingPolicy): Undocumented in source.

Members

Classes

UniqueCountCalculator class UniqueCountCalculator: Undocumented in source.

Functions

makeCalculator SingleFieldCalculator makeCalculator(): Undocumented in source. Be warned that the author may not have intended to support it.

Inherited Members

From SingleFieldOperator

setCustomHeader void setCustomHeader(string customHeader): Undocumented in source. Be warned that the author may not have intended to support it.
name string name(): Undocumented in source. Be warned that the author may not have intended to support it.
allowCustomHeader bool allowCustomHeader(): Undocumented in source. Be warned that the author may not have intended to support it.
setSaveFieldValuesNumeric void setSaveFieldValuesNumeric(): Undocumented in source. Be warned that the author may not have intended to support it.
setSaveFieldValuesText void setSaveFieldValuesText(): Undocumented in source. Be warned that the author may not have intended to support it.
missingPolicy MissingFieldPolicy missingPolicy(): Undocumented in source. Be warned that the author may not have intended to support it.
fieldIndex size_t fieldIndex(): Undocumented in source. Be warned that the author may not have intended to support it.
header string header(): Undocumented in source. Be warned that the author may not have intended to support it.
useHeaderSuffix bool useHeaderSuffix(): Undocumented in source. Be warned that the author may not have intended to support it.
processHeaderLine void processHeaderLine(char[][] fields): Undocumented in source. Be warned that the author may not have intended to support it.
numericFieldsToSave size_t[] numericFieldsToSave(): Undocumented in source. Be warned that the author may not have intended to support it.
textFieldsToSave size_t[] textFieldsToSave(): Undocumented in source. Be warned that the author may not have intended to support it.
makeCalculator SingleFieldCalculator makeCalculator(): Undocumented in source.