Package edu.cmu.tetrad.data

Class DataWriter

java.lang.Object

edu.cmu.tetrad.data.DataWriter

public final class DataWriter
extends Object

Provides static methods for saving data to files.

Version:

$Id: $Id

Author:

josephramsey

Method Summary

Modifier and Type	Method	Description
static void	saveKnowledge(Knowledge knowledge, Writer out)	saveKnowledge.
static void	writeCovMatrix(ICovarianceMatrix covMatrix, PrintWriter out, NumberFormat nf)	Writes the lower triangle of a covariance matrix to file.
static void	writeRectangularData(DataSet dataSet, Writer out, char separator)	Writes a dataset to file.

Methods inherited from class java.lang.Object

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

Method Details

writeRectangularData

public static void writeRectangularData(DataSet dataSet,
 Writer out,
 char separator)
                                 throws IOException

Writes a dataset to file. The dataset may have continuous and/or discrete columns. Note that out is not closed by this method, so the close method on out will need to be called externally.

Parameters:

dataSet - The data set to save.

out - The writer to write the output to.

separator - The character separating fields, usually '\t' or ','.

Throws:

IOException - If there is some problem dealing with the writer.

writeCovMatrix

public static void writeCovMatrix(ICovarianceMatrix covMatrix,
 PrintWriter out,
 NumberFormat nf)

Writes the lower triangle of a covariance matrix to file. Note that out is not closed by this method, so the close method on out will need to be called externally.

Parameters:

covMatrix - a ICovarianceMatrix object

out - The writer to write the output to.

nf - a NumberFormat object

saveKnowledge

public static void saveKnowledge(Knowledge knowledge,
 Writer out)
                          throws IOException

saveKnowledge.

Parameters:

knowledge - a Knowledge object

out - a Writer object

Throws:

IOException - if any.