jbnc.dataset
Class DatasetReaderInt

java.lang.Object
  jbnc.dataset.DatasetReader
      jbnc.dataset.DatasetReaderInt

public final class DatasetReaderInt

extends DatasetReader

Functions for reading data sets with test cases. Variables are assumed to be 'descrete' or 'ignore'.

Since:

June 1, 1999

Author:

Jarek Sacha

See Also:

Dataset, NamesReader

Constructor Summary

DatasetReaderInt()

Method Summary

protected int[]	convertCaseInt(java.util.Vector rawData, AttributeSpecs[] names) Convert case from a raw format.
java.util.Vector	open(java.lang.String fileName, AttributeSpecs[] names) Reads a data file with cases - comma delimited, no header.
Dataset	open(java.lang.String fileName, java.lang.String className) Reads a data file with cases - comma delimited, with header.

Methods inherited from class jbnc.dataset.DatasetReader

convertCase, getDiscardIncompleteCases, setDiscardIncompleteCases

Methods inherited from class java.lang.Object

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

Constructor Detail

DatasetReaderInt

public DatasetReaderInt()

Method Detail

open

public java.util.Vector open(java.lang.String fileName,
                             AttributeSpecs[] names)
                      throws java.lang.Exception

Reads a data file with cases - comma delimited, no header. This function is typically used to read files in c4.5 format, description of attributes needs to be read from the '.names' first using jbnc.dataset.NamesReader.open().

Overrides:

open in class DatasetReader

Parameters:

names - Descriptions of columns in the file.

fileName - Description of Parameter

Returns:

Vector of vectors representing cases. Each case attribute is allocated in type defined by 'names' parameters.

Throws:

java.lang.Exception - Description of Exception

open

public Dataset open(java.lang.String fileName,
                    java.lang.String className)
             throws java.lang.Exception

Reads a data file with cases - comma delimited, with header. First line in the file gives names of attributes (columns). In current implementation the attributes are assumed to be discrete.

Overrides:

open in class DatasetReader

Parameters:

fileName - Name of the file to read data from.

className - Name of the attribute representing class. If it is null, it is assumed that the last column represents class.

Returns:

Vector of vectors representing cases. Each case attribute is allocated in type defined by 'names' parameters.

Throws:

java.lang.Exception - Description of Exception

convertCaseInt

protected int[] convertCaseInt(java.util.Vector rawData,
                               AttributeSpecs[] names)
                        throws java.lang.Exception

Convert case from a raw format.

Parameters:

rawData - Description of Parameter

names - Description of Parameter

Returns:

Description of the Returned Value

Throws:

java.lang.Exception - Description of Exception