R: Inverse operation of the document_term_matrix function

dtm_reverse {udpipe} | R Documentation

## Inverse operation of the document_term_matrix function

### Description

Inverse operation of the `document_term_matrix` function. Creates frequency table which contains 1 row per document/term

### Usage

    dtm_reverse(x)

### Arguments

`x` | an object as returned by `document_term_matrix`

### Value

a data.frame with columns doc_id, term and freq where freq is just the value in each cell of the `x`

### See Also

`document_term_matrix`

### Examples

    x <- data.frame(
     doc_id = c(1, 1, 2, 3, 4),
     term = c("A", "C", "Z", "X", "G"),
     freq = c(1, 5, 7, 10, 0))
    dtm <- document_term_matrix(x)
    dtm_reverse(dtm)

[Package udpipe version 0.8.8 Index]