R: Get term frequencies and document frequencies from a document...

TermDocFreq {textmineR} | R Documentation

## Get term frequencies and document frequencies from a document term matrix.

### Description

This function takes a document term matrix as input and returns a data frame with columns for term frequency, document frequency, and inverse-document frequency

### Usage

    TermDocFreq(dtm)

### Arguments

`dtm` | A document term matrix of class `dgCMatrix`.

### Value

Returns a `data.frame` or `tibble` with 4 columns. The first column, `term` is a vector of token labels. The second column, `term_freq` is the count of times `term` appears in the entire corpus. The third column `doc_freq` is the count of the number of documents in which `term` appears. The fourth column, `idf` is the log-weighted inverse document frequency of `term`.

### Examples

    # Load a pre-formatted dtm and topic model
    data(nih_sample_dtm)
    data(nih_sample_topic_model)

    # Get the term frequencies
    term_freq_mat <- TermDocFreq(nih_sample_dtm)

    str(term_freq_mat)

[Package textmineR version 3.0.5 Index]