databionics.io
Class ArffFile

java.lang.Object
  databionics.io.BaseFile
      databionics.io.Array2DFile
          databionics.io.LrnFile
              databionics.io.ArffFile

public class ArffFile
extends LrnFile

File that stores multivariate data sets in a 2D array in WEKA format.

Field Summary

protected static org.apache.log4j.Logger	log Log4j logging.
protected java.lang.String	relation relation name from header

Fields inherited from class databionics.io.LrnFile

classColumnIndex, classColumnName, classes, CLS_COLUMN, DAT_COLUMN, defines, KEY_COLUMN, keyColumnIndex, keyColumnName, keys, names, NUL_COLUMN, nullColumns

Fields inherited from class databionics.io.Array2DFile

data

Fields inherited from class databionics.io.BaseFile

allowEmptyLines, comment, commentPrefix, delimiter, delimiters, file, header, headerPrefix, loc, nf

Constructor Summary

ArffFile()
Standard constructor

ArffFile(ArffFile file)
Clone constructor

ArffFile(int rows, int cols)
Constructor with size for an empty array.

ArffFile(LrnFile file)
Clone constructor

ArffFile(java.lang.String filename)
Constructor with a filename

Method Summary

protected void	buildHeader() Generate header.
protected java.lang.String	buildLine(int row) Construct a line for saving.
protected void	checkHeader() Check consistency of header information.
static FileType	getFileType() Get the type of file.
java.lang.String	getRelation() Get relation name
protected void	init(int rows, int cols) Initialize 2D array and class and key columns.
protected void	parseHeader() Parse the header.
protected void	parseNames(java.lang.String line) Parse line for names with custom delimiters.
void	setRelation(java.lang.String string) Set relation name

Methods inherited from class databionics.io.LrnFile

getByIndex, getClassColumnIndex, getClassColumnName, getClasses, getDefines, getKeyColumnIndex, getKeyColumnName, getKeys, getNames, initTest, parseLine, removeColumn, setClassColumnName, setClasses, setClasses, setDefines, setDefines, setDefines, setKeyColumnName, setKeys, setKeys, setKeys, setNames, setNames

Methods inherited from class databionics.io.Array2DFile

get, getColumns, getData, getRows, getSize, set, setData, setData

Methods inherited from class databionics.io.BaseFile

checkHeaderAgainstSize, getComment, getFile, getFilename, getHeader, getLocale, getNumberFormat, isHeader, isNaN, isNumber, load, load, parseError, save, save, setComment, setFilename, setLocale, writeStringList, writeStringList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected static org.apache.log4j.Logger log

Log4j logging.

relation

protected java.lang.String relation

relation name from header

Constructor Detail

ArffFile

public ArffFile()

Standard constructor

ArffFile

public ArffFile(java.lang.String filename)

Constructor with a filename

Parameters:

filename - Name of the file

ArffFile

public ArffFile(int rows,
                int cols)

Constructor with size for an empty array.

Parameters:

rows - Rows of data array.

cols - Columns of data array.

ArffFile

public ArffFile(ArffFile file)

Clone constructor

ArffFile

public ArffFile(LrnFile file)

Clone constructor

Method Detail

parseNames

protected void parseNames(java.lang.String line)

Parse line for names with custom delimiters.

Overrides:

parseNames in class LrnFile

parseHeader

protected void parseHeader()

Parse the header.

Overrides:

parseHeader in class LrnFile

init

protected void init(int rows,
                    int cols)

Initialize 2D array and class and key columns.

Overrides:

init in class LrnFile

Parameters:

rows - Rows of data array.

cols - Columns of data array.

checkHeader

protected void checkHeader()

Check consistency of header information.

Overrides:

checkHeader in class LrnFile

buildHeader

protected void buildHeader()

Generate header.

Overrides:

buildHeader in class LrnFile

buildLine

protected java.lang.String buildLine(int row)

Construct a line for saving.

Overrides:

buildLine in class LrnFile

Parameters:

row - Number of current line.

Returns:

Line with that number.

getFileType

public static FileType getFileType()

Get the type of file.

getRelation

public java.lang.String getRelation()

Get relation name

Returns:

setRelation

public void setRelation(java.lang.String string)

Set relation name

Parameters:

string -