unique_identifier

Create a unique identifier for each combination of fields in a data frame. 
This unique identifier is unique for each combination of the elements of the fields. 
The generated identifier is like a primary key or a secondary key on a table.
This is just a small wrapper around <code><a href="https://Rdatatable.gitlab.io/data.table/reference/frank.html">frank</a></code>

This natural language processing toolkit provides language-agnostic
'tokenization', 'parts of speech tagging', 'lemmatization' and 'dependency
parsing' of raw text. Next to text parsing, the package also allows you to train
annotation models based on data of 'treebanks' in 'CoNLL-U' format as provided
at <https://universaldependencies.org/format.html>. The techniques are explained
in detail in the paper: 'Tokenizing, POS Tagging, Lemmatizing and Parsing UD 2.0
with UDPipe', available at <doi:10.18653/v1/K17-3009>.
The toolkit also contains functionalities for commonly used data manipulations on texts
which are enriched with the output of the parser. Namely functionalities and algorithms
for collocations, token co-occurrence, document term matrix handling,
term frequency inverse document frequency calculations,
information retrieval metrics (Okapi BM25), handling of multi-word expressions,
keyword detection (Rapid Automatic Keyword Extraction, noun phrase extraction, syntactical patterns)
sentiment scoring and semantic similarity analysis.

Jan Wijffels

udpipe

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

BNOSAC 

Institute of Formal and Applied Linguistics, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic 

Milan Straka 

Jana Straková 

unique_identifier function

<dl><dt>x</dt>
<dd>a data.frame</dd>
<dt>fields</dt>
<dd>a character vector of columns from <code>x</code></dd>
<dt>start_from</dt>
<dd>integer number indicating to start from that number onwards</dd></dl>

Arguments

Create a unique identifier for each combination of fields in a data frame. 
This unique identifier is unique for each combination of the elements of the fields. 
The generated identifier is like a primary key or a secondary key on a table.
This is just a small wrapper around <code><a href='https://Rdatatable.gitlab.io/data.table/reference/frank.html'>frank</a></code>

Create a unique identifier for each combination of fields in a data frame — unique_identifier

<dl>

<dt>x</dt>
<dd>a data.frame</dd>


<dt>fields</dt>
<dd>a character vector of columns from <code>x</code></dd>


<dt>start_from</dt>
<dd>integer number indicating to start from that number onwards</dd>

</dl>

unique_identifier: Create a unique identifier for each combination of fields in a data frame

Description

Usage

Value

Arguments

Examples