R: Coercion and checking functions for dfm objects

as.dfm {quanteda} | R Documentation

## Coercion and checking functions for dfm objects

### Description

Convert an eligible input object into a dfm, or check whether an object is a dfm. Current eligible inputs for coercion to a dfm are: matrix, (sparse) Matrix, TermDocumentMatrix and DocumentTermMatrix (from the tm package), data.frame, and other dfm objects.

### Usage

    as.dfm(x)

    is.dfm(x)

### Arguments

`x` | a candidate object for checking or coercion to dfm

### Value

`as.dfm` converts an input object into a dfm. Row names are used for docnames, and column names for featnames, of the resulting dfm.

`is.dfm` returns `TRUE` if and only if its argument is a dfm.

### See Also

`as.data.frame.dfm()`, `as.matrix.dfm()`, `convert()`

[Package quanteda version 3.1.0 Index]