Analyze context of a node word.
Retrieve the word context of a token, optionally checking for boundaries of a XML region.
context(.Object, ...)
## S4 method for signature 'slice'
context(
.Object,
query,
cqp = is.cqp,
check = TRUE,
left = getOption("polmineR.left"),
right = getOption("polmineR.right"),
p_attribute = getOption("polmineR.p_attribute"),
boundary = NULL,
stoplist = NULL,
positivelist = NULL,
regex = FALSE,
count = TRUE,
mc = getOption("polmineR.mc"),
verbose = TRUE,
progress = TRUE,
...
)
## S4 method for signature 'partition'
context(
.Object,
query,
cqp = is.cqp,
check = TRUE,
left = getOption("polmineR.left"),
right = getOption("polmineR.right"),
p_attribute = getOption("polmineR.p_attribute"),
boundary = NULL,
stoplist = NULL,
positivelist = NULL,
regex = FALSE,
count = TRUE,
mc = getOption("polmineR.mc"),
verbose = TRUE,
progress = TRUE,
...
)
## S4 method for signature 'subcorpus'
context(
.Object,
query,
cqp = is.cqp,
check = TRUE,
left = getOption("polmineR.left"),
right = getOption("polmineR.right"),
p_attribute = getOption("polmineR.p_attribute"),
boundary = NULL,
stoplist = NULL,
positivelist = NULL,
regex = FALSE,
count = TRUE,
mc = getOption("polmineR.mc"),
verbose = TRUE,
progress = TRUE,
...
)
## S4 method for signature 'matrix'
context(.Object, corpus, left, right)
## S4 method for signature 'corpus'
context(
.Object,
query,
cqp = is.cqp,
p_attribute = getOption("polmineR.p_attribute"),
boundary = NULL,
left = getOption("polmineR.left"),
right = getOption("polmineR.right"),
stoplist = NULL,
positivelist = NULL,
regex = FALSE,
count = TRUE,
mc = getOption("polmineR.mc"),
verbose = TRUE,
progress = TRUE,
...
)
## S4 method for signature 'character'
context(
.Object,
query,
cqp = is.cqp,
p_attribute = getOption("polmineR.p_attribute"),
boundary = NULL,
left = getOption("polmineR.left"),
right = getOption("polmineR.right"),
stoplist = NULL,
positivelist = NULL,
regex = FALSE,
count = TRUE,
mc = getOption("polmineR.mc"),
verbose = TRUE,
progress = TRUE,
...
)
## S4 method for signature 'partition_bundle'
context(.Object, query, p_attribute, verbose = TRUE, ...)
## S4 method for signature 'cooccurrences'
context(.Object, query, check = TRUE, complete = FALSE).Object |
a partition or a partition_bundle object |
... |
further parameters |
query |
A query, which may by a character vector or a CQP query. |
cqp |
defaults to is.cqp-function, or provide TRUE/FALSE |
check |
A |
left |
Number of tokens to the left of the query match. |
right |
Number of tokens to the right of the query match. |
p_attribute |
The p-attribute of the query. |
boundary |
If provided, a length-one character vector specifying a s-attribute. It will be checked that corpus positions do not extend beyond the region defined by the s-attribute. |
stoplist |
Exclude match for query if stopword(s) is/are are present in context. See positivelist for further explanation. |
positivelist |
character vector or numeric/integer vector: include a query hit only if token in positivelist is present. If positivelist is a character vector, it may include regular expressions (see parameter regex) |
regex |
logical, defaults to FALSE - whether stoplist and/or positivelist are regular expressions |
count |
logical |
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 |
corpus |
A length-one |
complete |
enhance completely |
For formulating the query, CPQ syntax may be used (see examples). Statistical tests available are log-likelihood, t-test, pmi.
If .Object is a matrix, the context-method will
unfold the matrix (interpreted as regions defining left and right
corpus positions) and return an elementary ... object.
depending on whether a partition or a partition_bundle serves as
input, the return will be a context object, or a context_bundle object
Andreas Blaette
use("polmineR")
p <- partition("GERMAPARLMINI", interjection = "speech")
y <- context(p, query = "Integration", p_attribute = "word")
y <- context(p, query = "Integration", p_attribute = "word", positivelist = "Bildung")
y <- context(
p, query = "Integration", p_attribute = "word",
positivelist = c("[aA]rbeit.*", "Ausbildung"), regex = TRUE
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