context-method: Analyze context of a node word

In nrauscher/corpus: Toolkit for Corpus Analysis

Description

Retrieve the word context of a token, checking for the boundaries of a XML region. For formulating the query, CPQ syntax may be used (see examples). Statistical tests available are log-likelihood, t-test, pmi.

Usage

## S4 method for signature 'partition'
context(.Object, query, cqp = is.cqp,
  pAttribute = getOption("polmineR.pAttribute"), sAttribute = NULL,
  left = getOption("polmineR.left"), right = getOption("polmineR.right"),
  stoplist = NULL, positivelist = NULL, count = TRUE, method = "ll",
  mc = getOption("polmineR.mc"), verbose = TRUE, progress = FALSE)

## S4 method for signature 'character'
context(.Object, ...)

## S4 method for signature 'Corpus'
context(.Object,
  pAttribute = getOption("polmineR.pAttribute"), ...)

## S4 method for signature 'partitionBundle'
context(.Object, query, verbose = TRUE, ...)

## S4 method for signature 'cooccurrences'
context(.Object, query, complete = FALSE)

Arguments

.Object	a partition or a partitionBundle object
query	query, which may by a character vector or a cqpQuery object
cqp	defaults to is.cqp-function, or provide TRUE/FALSE
pAttribute	p-attribute of the query
sAttribute	if provided, it will be checked that cpos do not extend beyond the region defined by the s-attribute
left	no of tokens and to the left of the node word
right	no of tokens to the right of the node word
stoplist	exclude a query hit from analysis if stopword(s) is/are in context
positivelist	character vector or numeric vector: include a query hit only if token in positivelist is present. If positivelist is a character vector, it is assumed to provide regex expressions (incredibly long if the list is long)
count	logical
method	either "LL" (default) or "pmi", if NULL, calculating the statistics will be skipped
mc	whether to use multicore; if NULL (default), the function will get the value from the options
verbose	report progress, defaults to TRUE
progress	logical, whether to show progress bar
...	further parameters
complete	enhance completely

Value

depending on whether a partition or a partitionBundle serves as input, the return will be a context object, or a contextBundle object

Author(s)

Andreas Blaette

Examples

## Not run: 
  use("polmineR.sampleCorpus")
  p <- partition("PLPRBTTXT", list(text_type="speech"))
  a <- context(p, query="Integration", pAttribute="word")

## End(Not run)

nrauscher/corpus documentation built on May 23, 2019, 9:34 p.m.