R: The TabularTextFileSet class

TabularTextFileSet {R.filesets} | R Documentation

## 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 `TabularTextFile`s.

### 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, dsApply, 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(s)

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))

[Package R.filesets version 2.11.0 Index]