jhplot.math.pca

Class DataReader

java.lang.Object

jhplot.math.pca.DataReader

public class DataReader
extends java.lang.Object

Reads data matrix from a CSV file

Constructor Summary

Constructors

Constructor and Description
DataReader()

Method Summary

Modifier and Type	Method and Description
static Matrix	read(java.io.InputStream inStream, boolean ignoreLastColumn) Read data matrix from a CSV file.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataReader

public DataReader()

Method Detail

read

public static Matrix read(java.io.InputStream inStream,
                          boolean ignoreLastColumn)
                   throws java.io.IOException

Read data matrix from a CSV file. The first row (corresponding to the header) is ignored. Some lines may be commented out by a '#' character.

Parameters:

inStream - CSV file

ignoreLastColumn - if True, the last column is ignored. This is helpful when the last column corresponds to a class of a vector.

Returns:

data matrix

Throws:

java.io.IOException