CenterSpace Software .NET Numerics
NMath Stats User's Guide Version 2.3
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Chapter 1. Introduction

1.1 Product Features
1.2 Software Requirements
1.3 Namespaces
1.4 Documentation
This Manual
1.5 Technical Support

Chapter 2. Data Frames

2.1 Column Types
Creating Columns
Adding and Removing Data
Accessing Column Data
Column Properties
Reordering Column Data
Missing Values
Transforming Column Data
Exporting Column Data
2.2 Creating DataFrames
Creating Empty DataFrames
Creating DataFrames from Arrays of Columns
Creating DataFrames from Matrices
Creating DataFrames from ADO.NET Objects
Creating DataFrames from Strings
2.3 Adding and Removing Columns
2.4 Adding and Removing Rows
Modifying Row Keys
2.5 Properties of DataFrames
2.6 Accessing DataFrames
Accessing Elements
Accessing Columns
Accessing Rows
2.7 Subsets
Creating Subsets
Properties of Subsets
Accessing Elements
Logical Operations on Subsets
Arithmetic Operations on Subsets
Manipulating Subsets
Groupings
Random Samples
2.8 Accessing Sub-Frames
2.9 Reordering DataFrames
Sorting Rows
Permuting Rows and Columns
2.10 Factors
Creating Factors
Properties of Factors
Accessing Factors
Creating Groupings with Factors
2.11 Cross-Tabulation
Column Delegates
Applying Column Delegates to Tabulated Data
2.12 Exporting Data from DataFrames
Exporting to a Matrix
Exporting to a String
Exporting to an ADO.NET DataTable
Binary and SOAP Serialization

Chapter 3. Descriptive Statistics

3.1 Column Types
3.2 Missing Values
3.3 Counts and Sums
3.4 Min/Max Functions
3.5 Ranks, Percentiles, Deciles, and Quartiles
3.6 Central Tendency
3.7 Spread
3.8 Shape
3.9 Covariance, Correlation, and Autocorrelation
3.10 Sorting
3.11 Logical Functions

Chapter 4. Special Functions

4.1 Combinatorial Functions
4.2 Gamma Function
4.3 Beta Function

Chapter 5. Probability Distributions

5.1 Distribution Classes
5.2 Normal Distribution
5.3 Logistic Distribution
5.4 Poisson Distribution
5.5 Gamma Distribution
5.6 Chi-Square Distribution
5.7 Beta Distribution
5.8 Student's t Distribution
5.9 F Distribution
5.10 Binomial Distribution
5.11 Negative Binomial Distribution

Chapter 6. Hypothesis Tests

6.1 Common Interface
Static Properties
Creating Hypothesis Test Objects
Properties of Hypothesis Test Objects
Modifying Hypothesis Test Objects
Printing Results
6.2 One Sample Z-Test
6.3 One Sample T-Test
6.4 Two Sample Paired T-Test
6.5 Two Sample Unpaired T-Test
6.6 Two Sample F-Test
6.7 One Sample Kolmogorov-Smirnov Test
6.8 Two Sample Kolmogorov-Smirnov Test

Chapter 7. Linear Regression

7.1 Creating Linear Regressions
Parameter Calculation by Least Squares Minimization
Intercept Parameters
7.2 Regression Results
7.3 Predictions
7.4 Accessing and Modifying the Model
Accessing and Modifying Predictors
Accessing and Modifying Observations
Accessing and Modifying the Intercept Option
Updating the Entire Model
7.5 Significance of Parameters
Creating Linear Regression Parameter Objects
Properties Linear Regression Parameters
Hypothesis Tests
Updating Linear Regression Parameters
7.6 Significance of the Overall Model

Chapter 8. Analysis of Variance

8.1 One-Way ANOVA
Creating One-Way ANOVA Objects
The One-Way ANOVA Table
Grand Mean, Group Means, and Group Sizes
Critical Value of the F Statistic
Updating One-Way ANOVA Objects
8.2 One-Way Repeated Measures ANOVA
Creating One-Way RANOVA Objects
The One-Way RANOVA Table
Grand Mean, Subject Means, and Treatment Means
Critical Value of the F Statistic
Updating One-Way RANOVA Objects
8.3 Two-Way ANOVA
Creating Two-Way ANOVA Objects
The Two-Way ANOVA Table
Cell Data
Grand Mean, Cell Means, and Group Means
ANOVA Regression Parameters
8.4 Two-Way Repeated Measures ANOVA
Creating Two-Way RANOVA Objects
Two-Way RANOVA Tables

Chapter 9. Multivariate Techniques

9.1 Principal Component Analysis
Creating Principal Component Analyses
Principal Component Analysis Results
9.2 Hierarchical Cluster Analysis
Distance Functions
Linkage Functions
Creating Cluster Analyses
Cluster Analysis Results
Reusing Cluster Analysis Objects

Chapter 10. Nonnegative Matrix Factorization (NNMF)

10.1 NNMFact Class
10.2 Update Algorithms and Classes
NNMFMultiplicativeUpdate
NNMFGdClsUpdate
NNMFAlsUpdate
10.3 Data with Missing Values
Basic Algorithm
The ApproximateValueDelagate

Chapter 11. Partial Least Squares

11.1 Introduction
11.2 PLS1 and PLS2
11.3 Calculations
Errors
Algorithms
11.4 Analysis of Variance
11.5 Cross Validation
The Holdout Method
K-fold Cross Validation
Cross Validation Classes

Index



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