quanteda (version 2.1.2)

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

Description

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

Usage

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

# NOT RUN {
head(data_dfm_lbgexample, 3, nf = 5)
head(data_dfm_lbgexample, -4)

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

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