Computes a score factor based on a term or phrase's frequency in a document. This value is multiplied by the {@link #Idf(Term, Searcher)} factor for each term in the query and these products are then summed to form the initial score for a document.

Terms and phrases repeated in a document indicate the topic of the document, so implementations of this method usually return larger values when

CopyC#
freq
is large, and smaller values when
CopyC#
freq
is small.

The default implementation calls {@link #Tf(float)}.

Namespace: Lucene.Net.Search
Assembly: Lucene.Net (in Lucene.Net.dll) Version: 2.9.4.1

Syntax

C#
public virtual float Tf(
	int freq
)
Visual Basic
Public Overridable Function Tf ( _
	freq As Integer _
) As Single
Visual C++
public:
virtual float Tf(
	int freq
)

Parameters

freq
Type: System..::..Int32
the frequency of a term within a document

Return Value

a score factor based on a term's within-document frequency

See Also