paste.data.frame: Concatenate text of each group of data together

In udpipe: Tokenization, Parts of Speech Tagging, Lemmatization and Dependency Parsing with the 'UDPipe' 'NLP' Toolkit

Concatenate text of each group of data together

Description

This function is similar to paste but works on a data.frame, hence paste.data.frame. It concatenates text belonging to groups of data together in one string. The function is the inverse operation of strsplit.data.frame.

Usage

paste.data.frame(data, term, group, collapse = " ")

Arguments

data	a data.frame or data.table
term	a string with a column name or a character vector of column names from data which you want to concatenate together using paste
group	a string with a column name or a character vector of column names from data indicating identifiers of groups. The text in term will be concatenated by group.
collapse	a character string that you want to use to collapse the text data together. Defaults to a single space.

Value

A data.frame with 1 row per group containing the columns from group and term where all the text in term for each group will be paste-d together, separated by the collapse argument.

See Also

strsplit.data.frame, paste

Examples

data(brussels_reviews_anno, package = "udpipe")
head(brussels_reviews_anno)
x <- paste.data.frame(brussels_reviews_anno, 
                      term = "lemma", 
                      group = c("doc_id", "sentence_id"))
str(x)
x <- paste.data.frame(brussels_reviews_anno, 
                      term = c("lemma", "token"), 
                      group = c("doc_id", "sentence_id"), 
                      collapse = "-")
str(x)                       

udpipe documentation built on Jan. 6, 2023, 5:06 p.m.