This is a very good book.
Springer Texts in Statistics
Everitt - An R and SPLUS Companion to Multivariate Analysis.pdf
The first Four chapters
Preface... . . . . . . . . . . . . . vii
.... . . . . . . . . . . . . vii
1 Multivariate Data and Multivariate Analysis. . . . . . . . 1
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
.. . . . . . . 1
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
1 Multivariate Data and Multivariate Analysis. . . . . . . . 1
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
.. . . . . . . 1
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
1.1 Introduction... . . 1
1.2 Types of Data... . 1
1.3 Summary Statistics for Multivariate Data. . . . . . . . . 4
1.3.1 Means... . 4
1.3.2 Variances..5
1.3.3 Covariances.. . . . . . . . . . . . 5
1.3.4 Correlations.. . . . . . . . . . . . 6
1.3.5 Distances.. . . . . . . . . . . . . . 7
1.4 The Multivariate Normal Distribution. . . . . . . . . . . . 9
1.5 The Aims of Multivariate Analysis. . . . . . . . . . . . . . 13
1.6 Summary... . . . . 15
2 Looking at Multivariate Data.. . . . . . . 16
2.1 Introduction... . . 16
2.2 Scatterplots and Beyond.. . . . . . . . 17
2.2.1 The Convex Hull of Bivariate Data. . . . . . . . 22
2.2.2 The Chiplot.. . . . . . . . . . . . . 23
2.2.3 The Bivariate Boxplot.. . . . 25
2.3 Estimating Bivariate Densities.. . . 29
2.4 Representing Other Variables on a Scatterplot. . . . . 32
2.5 The Scatterplot Matrix.. . . . . . . . . 33
2.6 Three-Dimensional Plots.. . . . . . . 35
2.7 Conditioning Plots and Trellis Graphics. . . . . . . . . . 37
2.8 Summary... . . . . 40
Exercises... . . . . . . . . . 40
2.1 Introduction... . . 16
2.2 Scatterplots and Beyond.. . . . . . . . 17
2.2.1 The Convex Hull of Bivariate Data. . . . . . . . 22
2.2.2 The Chiplot.. . . . . . . . . . . . . 23
2.2.3 The Bivariate Boxplot.. . . . 25
2.3 Estimating Bivariate Densities.. . . 29
2.4 Representing Other Variables on a Scatterplot. . . . . 32
2.5 The Scatterplot Matrix.. . . . . . . . . 33
2.6 Three-Dimensional Plots.. . . . . . . 35
2.7 Conditioning Plots and Trellis Graphics. . . . . . . . . . 37
2.8 Summary... . . . . 40
Exercises... . . . . . . . . . 40
2.1 Introduction... . . 16
2.2 Scatterplots and Beyond.. . . . . . . . 17
2.2.1 The Convex Hull of Bivariate Data. . . . . . . . 22
2.2.2 The Chiplot.. . . . . . . . . . . . . 23
2.2.3 The Bivariate Boxplot.. . . . 25
2.3 Estimating Bivariate Densities.. . . 29
2.4 Representing Other Variables on a Scatterplot. . . . . 32
2.5 The Scatterplot Matrix.. . . . . . . . . 33
2.6 Three-Dimensional Plots.. . . . . . . 35
2.7 Conditioning Plots and Trellis Graphics. . . . . . . . . . 37
2.8 Summary... . . . . 40
Exercises... . . . . . . . . . 40
... . . . . . 16
2.1 Introduction... . . 16
2.2 Scatterplots and Beyond.. . . . . . . . 17
2.2.1 The Convex Hull of Bivariate Data. . . . . . . . 22
2.2.2 The Chiplot.. . . . . . . . . . . . . 23
2.2.3 The Bivariate Boxplot.. . . . 25
2.3 Estimating Bivariate Densities.. . . 29
2.4 Representing Other Variables on a Scatterplot. . . . . 32
2.5 The Scatterplot Matrix.. . . . . . . . . 33
2.6 Three-Dimensional Plots.. . . . . . . 35
2.7 Conditioning Plots and Trellis Graphics. . . . . . . . . . 37
2.8 Summary... . . . . 40
Exercises... . . . . . . . . . 40
... . . . . . 16
2.1 Introduction... . . 16
2.2 Scatterplots and Beyond.. . . . . . . . 17
2.2.1 The Convex Hull of Bivariate Data. . . . . . . . 22
2.2.2 The Chiplot.. . . . . . . . . . . . . 23
2.2.3 The Bivariate Boxplot.. . . . 25
2.3 Estimating Bivariate Densities.. . . 29
2.4 Representing Other Variables on a Scatterplot. . . . . 32
2.5 The Scatterplot Matrix.. . . . . . . . . 33
2.6 Three-Dimensional Plots.. . . . . . . 35
2.7 Conditioning Plots and Trellis Graphics. . . . . . . . . . 37
2.8 Summary... . . . . 40
Exercises... . . . . . . . . . 40
3 Principal Components Analysis.. . . . . 41
3.1 Introduction... . . 41
3.2 Algebraic Basics of Principal Components. . . . . . . 42
3.1 Introduction... . . 41
3.2 Algebraic Basics of Principal Components. . . . . . . 42
3.1 Introduction... . . 41
3.2 Algebraic Basics of Principal Components. . . . . . . 42
... . . . 41
3.1 Introduction... . . 41
3.2 Algebraic Basics of Principal Components. . . . . . . 42
... . . . 41
3.1 Introduction... . . 41
3.2 Algebraic Basics of Principal Components. . . . . . . 42
xi
xii Contents
3.2.1 Rescaling Principal Components. . . . . . . . . . 45
3.2.2 Choosing the Number of Components. . . . . 46
3.2.3 Calculating Principal Component Scores. . . 47
3.2.4 Principal Components of Bivariate Data with Correlation
Coefficient r.. . . . . . . . . . . . 48
3.3 An Example of Principal Components Analysis: Air Pollution in
U.S. Cities... . . . 49
3.4 Summary... . . . . 61
Exercises... . . . . . . . . . 62
3.3 An Example of Principal Components Analysis: Air Pollution in
U.S. Cities... . . . 49
3.4 Summary... . . . . 61
Exercises... . . . . . . . . . 62
3.3 An Example of Principal Components Analysis: Air Pollution in
U.S. Cities... . . . 49
3.4 Summary... . . . . 61
Exercises... . . . . . . . . . 62
r.. . . . . . . . . . . . 48
3.3 An Example of Principal Components Analysis: Air Pollution in
U.S. Cities... . . . 49
3.4 Summary... . . . . 61
Exercises... . . . . . . . . . 62
r.. . . . . . . . . . . . 48
3.3 An Example of Principal Components Analysis: Air Pollution in
U.S. Cities... . . . 49
3.4 Summary... . . . . 61
Exercises... . . . . . . . . . 62
4 Exploratory Factor Analysis.. . . . . . . . 65
4.1 Introduction... . . 65
4.2 The Factor Analysis Model.. . . . . 65
4.2.1 Principal Factor Analysis.. 68
4.2.2 Maximum Likelihood Factor Analysis. . . . . 69
4.3 Estimating the Numbers of Factors. . . . . . . . . . . . . . 69
4.4 A Simple Example of Factor Analysis. . . . . . . . . . . 70
4.5 Factor Rotation..71
4.6 Estimating Factor Scores.. . . . . . . 76
4.7 Two Examples of Exploratory Factor Analysis. . . . 77
4.7.1 Expectations of Life.. . . . . 77
4.7.2 Drug Usage by American College Students. 82
4.8 Comparison of Factor Analysis and Principal
Components Analysis.. . . . . . . . . . 85
4.9 Confirmatory Factor Analysis.. . . 88
4.10 Summary... . . . . 88
Exercises... . . . . . . . . . 89
4.1 Introduction... . . 65
4.2 The Factor Analysis Model.. . . . . 65
4.2.1 Principal Factor Analysis.. 68
4.2.2 Maximum Likelihood Factor Analysis. . . . . 69
4.3 Estimating the Numbers of Factors. . . . . . . . . . . . . . 69
4.4 A Simple Example of Factor Analysis. . . . . . . . . . . 70
4.5 Factor Rotation..71
4.6 Estimating Factor Scores.. . . . . . . 76
4.7 Two Examples of Exploratory Factor Analysis. . . . 77
4.7.1 Expectations of Life.. . . . . 77
4.7.2 Drug Usage by American College Students. 82
4.8 Comparison of Factor Analysis and Principal
Components Analysis.. . . . . . . . . . 85
4.9 Confirmatory Factor Analysis.. . . 88
4.10 Summary... . . . . 88
Exercises... . . . . . . . . . 89
4.1 Introduction... . . 65
4.2 The Factor Analysis Model.. . . . . 65
4.2.1 Principal Factor Analysis.. 68
4.2.2 Maximum Likelihood Factor Analysis. . . . . 69
4.3 Estimating the Numbers of Factors. . . . . . . . . . . . . . 69
4.4 A Simple Example of Factor Analysis. . . . . . . . . . . 70
4.5 Factor Rotation..71
4.6 Estimating Factor Scores.. . . . . . . 76
4.7 Two Examples of Exploratory Factor Analysis. . . . 77
4.7.1 Expectations of Life.. . . . . 77
4.7.2 Drug Usage by American College Students. 82
4.8 Comparison of Factor Analysis and Principal
Components Analysis.. . . . . . . . . . 85
4.9 Confirmatory Factor Analysis.. . . 88
4.10 Summary... . . . . 88
Exercises... . . . . . . . . . 89
... . . . . . . 65
4.1 Introduction... . . 65
4.2 The Factor Analysis Model.. . . . . 65
4.2.1 Principal Factor Analysis.. 68
4.2.2 Maximum Likelihood Factor Analysis. . . . . 69
4.3 Estimating the Numbers of Factors. . . . . . . . . . . . . . 69
4.4 A Simple Example of Factor Analysis. . . . . . . . . . . 70
4.5 Factor Rotation..71
4.6 Estimating Factor Scores.. . . . . . . 76
4.7 Two Examples of Exploratory Factor Analysis. . . . 77
4.7.1 Expectations of Life.. . . . . 77
4.7.2 Drug Usage by American College Students. 82
4.8 Comparison of Factor Analysis and Principal
Components Analysis.. . . . . . . . . . 85
4.9 Confirmatory Factor Analysis.. . . 88
4.10 Summary... . . . . 88
Exercises... . . . . . . . . . 89
... . . . . . . 65
4.1 Introduction... . . 65
4.2 The Factor Analysis Model.. . . . . 65
4.2.1 Principal Factor Analysis.. 68
4.2.2 Maximum Likelihood Factor Analysis. . . . . 69
4.3 Estimating the Numbers of Factors. . . . . . . . . . . . . . 69
4.4 A Simple Example of Factor Analysis. . . . . . . . . . . 70
4.5 Factor Rotation..71
4.6 Estimating Factor Scores.. . . . . . . 76
4.7 Two Examples of Exploratory Factor Analysis. . . . 77
4.7.1 Expectations of Life.. . . . . 77
4.7.2 Drug Usage by American College Students. 82
4.8 Comparison of Factor Analysis and Principal
Components Analysis.. . . . . . . . . . 85
4.9 Confirmatory Factor Analysis.. . . 88
4.10 Summary... . . . . 88
Exercises... . . . . . . . . . 89
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