R.filesets (version 2.15.1)

TabularTextFileSet: The TabularTextFileSet class

Description

Package: R.filesets
Class TabularTextFileSet

Object
~~|
~~+--FullNameInterface
~~~~~~~|
~~~~~~~+--GenericDataFileSet
~~~~~~~~~~~~|
~~~~~~~~~~~~+--GenericTabularFileSet
~~~~~~~~~~~~~~~~~|
~~~~~~~~~~~~~~~~~+--TabularTextFileSet

Directly known subclasses:

public static class TabularTextFileSet
extends GenericTabularFileSet

An TabularTextFileSet object represents a set of TabularTextFiles.

Usage

TabularTextFileSet(...)

Arguments

...

Arguments passed to GenericTabularFileSet.

Fields and Methods

Methods:

readDataFrame

-

Methods inherited from GenericTabularFileSet:
extractMatrix

Methods inherited from GenericDataFileSet:
[, [[, anyDuplicated, anyNA, append, appendFiles, appendFullNamesTranslator, appendFullNamesTranslatorByNULL, appendFullNamesTranslatorByTabularTextFile, appendFullNamesTranslatorByTabularTextFileSet, appendFullNamesTranslatorBydata.frame, appendFullNamesTranslatorByfunction, appendFullNamesTranslatorBylist, as.character, as.list, byName, byPath, c, clearCache, clearFullNamesTranslator, clone, copyTo, dsApplyInPairs, duplicated, equals, extract, findByName, findDuplicated, getChecksum, getChecksumFileSet, getChecksumObjects, getDefaultFullName, getFile, getFileClass, getFileSize, getFiles, getFullNames, getNames, getOneFile, getPath, getPathnames, getSubdirs, gunzip, gzip, hasFile, indexOf, is.na, names, nbrOfFiles, rep, resetFullNames, setFullNamesTranslator, sortBy, unique, update2, updateFullName, updateFullNames, validate

Methods inherited from FullNameInterface:
appendFullNameTranslator, appendFullNameTranslatorByNULL, appendFullNameTranslatorByTabularTextFile, appendFullNameTranslatorByTabularTextFileSet, appendFullNameTranslatorBycharacter, appendFullNameTranslatorBydata.frame, appendFullNameTranslatorByfunction, appendFullNameTranslatorBylist, clearFullNameTranslator, clearListOfFullNameTranslators, getDefaultFullName, getFullName, getFullNameTranslator, getListOfFullNameTranslators, getName, getTags, hasTag, hasTags, resetFullName, setFullName, setFullNameTranslator, setListOfFullNameTranslators, setName, setTags, updateFullName

Methods inherited from Object:
$, $<-, [[, [[<-, as.character, attach, attachLocally, clearCache, clearLookupCache, clone, detach, equals, extend, finalize, getEnvironment, getFieldModifier, getFieldModifiers, getFields, getInstantiationTime, getStaticInstance, hasField, hashCode, ll, load, names, objectSize, print, save

Author

Henrik Bengtsson

Examples

# Setup a file set consisting of all *.dat tab-delimited files
# in a particular directory
path <- system.file("exData/dataSetA,original", package="R.filesets")
ds <- TabularTextFileSet$byPath(path, pattern="[.]dat$")
print(ds)


# Read column 'y' and a subset of the rows from each of the
# tab-delimited files and combine into a matrix
rows <- c(3:5, 8, 2)
data <- extractMatrix(ds, column="y", colClass="integer", rows=rows)
print(data)


# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# See also help("readDataFrame.TabularTextFileSet")
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# ADVANCED: Translation of fullnames
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
fnts <- TabularTextFileSet$byPath(getPath(ds), pattern=",fullnames[.]txt$")
appendFullNamesTranslator(ds, as.list(fnts))

cat("Default fullnames:\n")
print(head(getFullNames(ds, translate=FALSE)))
cat("Translated fullnames:\n")
print(head(getFullNames(ds)))

cat("Default fullnames:\n")
print(getFullNames(ds, translate=FALSE))
cat("Translated fullnames:\n")
print(getFullNames(ds))