calc_idf

Computes the inverse document frequency (IDF) for each term in a term-document matrix.
IDF is calculated as log(N/df) where N is the total number of documents and df is
the document frequency of the term.

internal

Support package for the textbook "An Introduction to
Quantitative Text Analysis for Linguists: Reproducible Research Using
R" (Francom, 2024) <doi:10.4324/9781003393764>. Includes functions to
acquire, clean, and analyze text data as well as functions to document
and share the results of text analysis. The package is designed to be
used in conjunction with the book, but can also be used as a standalone
package for text analysis.

Jerid Francom

qtkit

Quantitative Text Kit

calc_idf function

<dl><dt>tdm</dt>
<dd>A term-document matrix</dd></dl>

Arguments

Calculate Inverse Document Frequency — calc_idf

<dl>

<dt>tdm</dt>
<dd>A term-document matrix</dd>

</dl>

calc_idf: Calculate Inverse Document Frequency

Description

Usage

Value

Arguments