udpipe: paste.data.frame – R documentation

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paste.data.frame

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.

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

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

v0.8.5

MPL-2.0

Authors

Jan Wijffels [aut, cre, cph], BNOSAC [cph], Institute of Formal and Applied Linguistics, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic [cph], Milan Straka [ctb, cph], Jana Straková [ctb, cph]

Initial release