org.apache.ignite.ml.math

Class Tracer

java.lang.Object

org.apache.ignite.ml.math.Tracer

public class Tracer
extends Object

Utility methods to support output of Vector and Matrix instances to plain text or HTML.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Tracer.ColorMapper Double to color mapper.

Constructor Summary

Constructors

Constructor and Description
Tracer()

Method Summary

Modifier and Type	Method and Description
static String	asAscii(Matrix mtx, String fmt)
static String	asAscii(Vector vec, String fmt, boolean showMeta)
static void	saveAsCsv(Matrix mtx, String fmt, String filePath) Saves given matrix as CSV file.
static void	saveAsCsv(Vector vec, String fmt, String filePath) Saves given vector as CSV file.
static void	showAscii(Matrix mtx)
static void	showAscii(Matrix mtx, IgniteLogger log, String fmt)
static void	showAscii(Matrix mtx, String fmt)
static void	showAscii(Vector vec)
static void	showAscii(Vector vec, IgniteLogger log)
static void	showAscii(Vector vec, IgniteLogger log, String fmt)
static void	showAscii(Vector vec, String fmt)
static void	showClassificationDatasetHtml(DataStreamGenerator generator, int limit, int xIdx, int yIdx, boolean isLabeled) Open browser and shows given dataset generator's data on two dimensional plane.
static void	showClassificationDatasetHtml(String name, DataStreamGenerator generator, int limit, int xIdx, int yIdx, boolean isLabeled) Open browser and shows given dataset generator's data on two dimensional plane.
static void	showHtml(Matrix mtx) Shows given matrix in the browser with D3-based visualization.
static void	showHtml(Matrix mtx, boolean useAsciiFallback) Shows given matrix in the browser with D3-based visualization.
static void	showHtml(Matrix mtx, Tracer.ColorMapper cm) Shows given matrix in the browser with D3-based visualization.
static void	showHtml(Matrix mtx, Tracer.ColorMapper cm, boolean useAsciiFallback) Shows given matrix in the browser with D3-based visualization.
static void	showHtml(Vector vec) Shows given vector in the browser with D3-based visualization.
static void	showHtml(Vector vec, boolean useAsciiFallback) Shows given vector in the browser with D3-based visualization.
static void	showHtml(Vector vec, Tracer.ColorMapper cm) Shows given vector in the browser with D3-based visualization.
static void	showHtml(Vector vec, Tracer.ColorMapper cm, boolean useAsciiFallback) Shows given vector in the browser with D3-based visualization.
static void	showRegressionDatasetInHtml(DataStreamGenerator generator, int limit, int xIdx) Open browser and shows given dataset generator's data on two dimensional plane.
static void	showRegressionDatasetInHtml(String name, DataStreamGenerator generator, int limit, int xIdx) Open browser and shows given dataset generator's data on two dimensional plane.

Methods inherited from class java.lang.Object

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

Constructor Detail

Tracer

public Tracer()

Method Detail

showAscii

public static void showAscii(Vector vec,
                             IgniteLogger log,
                             String fmt)

Parameters:

vec - Vector to show.

log - IgniteLogger instance for output.

fmt - Format string for vector elements.

showAscii

public static void showAscii(Vector vec,
                             IgniteLogger log)

Parameters:

vec - Vector to show as plain text.

log - IgniteLogger instance for output.

showAscii

public static void showAscii(Vector vec,
                             String fmt)

Parameters:

vec - Vector to show as plain text.

fmt - Format string for vector elements.

asAscii

public static String asAscii(Vector vec,
                             String fmt,
                             boolean showMeta)

Parameters:

vec - Vector to show as plain text.

fmt - Format string for vector elements.

showMeta - Show vector type and size.

showAscii

public static void showAscii(Matrix mtx)

Parameters:

mtx - Matrix to show as plain text.

showAscii

public static void showAscii(Matrix mtx,
                             String fmt)

Parameters:

mtx - Matrix object to show as a plain text.

fmt - Format string for matrix rows.

asAscii

public static String asAscii(Matrix mtx,
                             String fmt)

Parameters:

mtx - Matrix object to show as a plain text.

fmt - Format string for matrix rows.

showAscii

public static void showAscii(Matrix mtx,
                             IgniteLogger log,
                             String fmt)

Parameters:

mtx - Matrix object to show as a plain text.

log - IgniteLogger instance to output the logged matrix.

fmt - Format string for matrix rows.

showAscii

public static void showAscii(Vector vec)

Parameters:

vec - Vector object to show as a plain text.

saveAsCsv

public static void saveAsCsv(Vector vec,
                             String fmt,
                             String filePath)
                      throws IOException

Saves given vector as CSV file.

Parameters:

vec - Vector to save.

fmt - Format to use.

filePath - Path of the file to save to.

Throws:

IOException

saveAsCsv

public static void saveAsCsv(Matrix mtx,
                             String fmt,
                             String filePath)
                      throws IOException

Saves given matrix as CSV file.

Parameters:

mtx - Matrix to save.

fmt - Format to use.

filePath - Path of the file to save to.

Throws:

IOException

showHtml

public static void showHtml(Matrix mtx)
                     throws IOException

Shows given matrix in the browser with D3-based visualization.

Parameters:

mtx - Matrix to show.

Throws:

IOException - Thrown in case of any errors.

showHtml

public static void showHtml(Matrix mtx,
                            boolean useAsciiFallback)
                     throws IOException

Shows given matrix in the browser with D3-based visualization.

Parameters:

mtx - Matrix to show.

useAsciiFallback - Use ascii fallback is desktop or browser is unavailable.

Throws:

IOException - Thrown in case of any errors.

showHtml

public static void showHtml(Matrix mtx,
                            Tracer.ColorMapper cm)
                     throws IOException

Shows given matrix in the browser with D3-based visualization.

Parameters:

mtx - Matrix to show.

cm - Optional color mapper. If not provided - red-to-blue (R_B) mapper will be used.

Throws:

IOException - Thrown in case of any errors.

showHtml

public static void showHtml(Matrix mtx,
                            Tracer.ColorMapper cm,
                            boolean useAsciiFallback)
                     throws IOException

Shows given matrix in the browser with D3-based visualization.

Parameters:

mtx - Matrix to show.

cm - Optional color mapper. If not provided - red-to-blue (R_B) mapper will be used.

useAsciiFallback - Use ascii fallback is desktop or browser is unavailable.

Throws:

IOException - Thrown in case of any errors.

showHtml

public static void showHtml(Vector vec)
                     throws IOException

Shows given vector in the browser with D3-based visualization.

Parameters:

vec - Vector to show.

Throws:

IOException - Thrown in case of any errors.

showHtml

public static void showHtml(Vector vec,
                            boolean useAsciiFallback)
                     throws IOException

Shows given vector in the browser with D3-based visualization.

Parameters:

vec - Vector to show.

useAsciiFallback - Use ascii fallback is desktop or browser is unavailable.

Throws:

IOException - Thrown in case of any errors.

showRegressionDatasetInHtml

public static void showRegressionDatasetInHtml(String name,
                                               DataStreamGenerator generator,
                                               int limit,
                                               int xIdx)
                                        throws IOException

Open browser and shows given dataset generator's data on two dimensional plane. Label of vectors is used for ordinate representation.

Parameters:

name - Name of dataset for showing.

generator - Datastream generator.

limit - Count of points that should be taken from dataset.

xIdx - Index of dimension for abscissa representation.

Throws:

IOException - IOException.

showRegressionDatasetInHtml

public static void showRegressionDatasetInHtml(DataStreamGenerator generator,
                                               int limit,
                                               int xIdx)
                                        throws IOException

Open browser and shows given dataset generator's data on two dimensional plane. Label of vectors is used for ordinate representation.

Parameters:

generator - Datastream generator.

limit - Count of points that should be taken from dataset.

xIdx - Index of dimension for abscissa representation.

Throws:

IOException - IOException.

showClassificationDatasetHtml

public static void showClassificationDatasetHtml(DataStreamGenerator generator,
                                                 int limit,
                                                 int xIdx,
                                                 int yIdx,
                                                 boolean isLabeled)
                                          throws IOException

Open browser and shows given dataset generator's data on two dimensional plane.

Parameters:

generator - Datastream generator.

limit - Count of points that should be taken from dataset.

xIdx - Index of dimension for abscissa representation.

yIdx - Index of dimension for ordinate representation.

isLabeled - if isLabeled == true then colors will be used for separate different classes on plane.

Throws:

IOException - IOException.

showClassificationDatasetHtml

public static void showClassificationDatasetHtml(String name,
                                                 DataStreamGenerator generator,
                                                 int limit,
                                                 int xIdx,
                                                 int yIdx,
                                                 boolean isLabeled)
                                          throws IOException

Open browser and shows given dataset generator's data on two dimensional plane.

Parameters:

name - Name of dataset for showing.

generator - Datastream generator.

limit - Count of points that should be taken from dataset.

xIdx - Index of dimension for abscissa representation.

yIdx - Index of dimension for ordinate representation.

isLabeled - if isLabeled == true then colors will be used for separate different classes on plane.

Throws:

IOException - IOException.

showHtml

public static void showHtml(Vector vec,
                            Tracer.ColorMapper cm)
                     throws IOException

Shows given vector in the browser with D3-based visualization.

Parameters:

vec - Vector to show.

cm - Optional color mapper. If not provided - red-to-blue (R_B) mapper will be used.

Throws:

IOException - Thrown in case of any errors.

showHtml

public static void showHtml(Vector vec,
                            Tracer.ColorMapper cm,
                            boolean useAsciiFallback)
                     throws IOException

Shows given vector in the browser with D3-based visualization.

Parameters:

vec - Vector to show.

cm - Optional color mapper. If not provided - red-to-blue (R_B) mapper will be used.

useAsciiFallback - Use ascii fallback is desktop or browser is unavailable.

Throws:

IOException - Thrown in case of any errors.