head.dfm: Return the first or last part of a dfm

In koheiw/quanteda.core: Quantitative Analysis of Textual Data

Description

For a dfm object, returns the first or last n documents and first nfeat features.

Usage

## S3 method for class 'dfm'
head(x, n = 6L, nf = nfeat(x), ...)

## S3 method for class 'dfm'
tail(x, n = 6L, nf = nfeat(x), ...)

Arguments

x	a dfm object
n	a single, positive integer. If positive, size for the resulting object: number of first/last documents for the dfm. If negative, all but the n last/first number of documents of x.
nf	the number of features to return, where the resulting object will contain the first ncol features; default is all features
...	additional arguments passed to other functions

Value

A dfm class object corresponding to the subset defined by n and nfeat.

Examples

head(data_dfm_lbgexample, 3, nf = 5)
head(data_dfm_lbgexample, -4)

tail(data_dfm_lbgexample)
tail(data_dfm_lbgexample, n = 3, nf = 4)

koheiw/quanteda.core documentation built on Sept. 21, 2020, 3:44 p.m.