# 'Original variables' diaporamas de présentation

## Factor Analysis Basics

Factor Analysis Basics. Why Factor?. Combine similar variables into more meaningful factors. Reduce the number of variables dramatically while retaining most of the explanatory power, for subsequent analyses, such as Clustering. Factor Types, Variables. R-type (commonly used)

By giulia
(338 views)

## Section 6.4

Section 6.4. Solving Polynomial Equations. y = 3 x + 1 y = –2 x + 6. –2x + 3 y = 0 x + 3 y = 3. Solving Polynomial Equations. ALGEBRA 2 LESSON 6-4. (For help, go to Lessons 6-2 and 6-3.). Graph each system. Find any points of intersection. 1. 2.

By nusa
(120 views)

## Sparse, Flexible and Efficient Modeling using L 1 -Regularization

Sparse, Flexible and Efficient Modeling using L 1 -Regularization. Saharon Rosset and Ji Zhu. Contents. Idea Algorithm Results. Part 1: Idea. Introduction. Setting: Implicit dependency on training data Linear model ( ® u se j -functions) Model:. Introduction.

By guri
(122 views)

## Chapter 8: Advanced Method Concepts

Chapter 8: Advanced Method Concepts. Understanding Parameter Types. Mandatory parameter An argument for it is required in every method call Four types of mandatory parameters: Value parameters Declared without any modifiers Reference parameters Declared with the ref modifier

By naif
(135 views)

## Chapter 6: Eigenvalue Problems

Chapter 6: Eigenvalue Problems. Motivation Differential Equations Other Equations. 6.1 Motivation. 6.1 Motivation. Physical Systems are commonly described by ( usually differential) equations involving sets of coupled variables.

By neylan
(140 views)

## Measurement

Tools for Science. Observation. Measurement. Hypothesis generation. Hypothesis testing. Must know “what” something is before you can ask questions about “how” or “why” something happens . Descriptive Statistics.  X i. X = . n. sample mean =. ‘X bar’. Measures of Central Tendency

By bin
(79 views)

## Cluster Analysis

Objectives ADDRESS HETEROGENEITY Combine observations into groups or clusters such that groups formed are homogeneous (similar) within the group and heterogeneous (different) from other groups on some variables (?).

By tamal
(140 views)

## Factor and Component Analysis

Factor and Component Analysis. esp. Principal Component Analysis (PCA). Why Factor or Component Analysis?. We study phenomena that can not be directly observed ego, personality, intelligence in psychology Underlying factors that govern the observed data

By huey
(196 views)

## Feature Selection

Feature Selection.

(91 views)

## Multivariate statistical methods

Multivariate statistical methods. Multivariate methods. multivariate dataset – group of n objects, m variables (as a rule n > m, if possible). confirmation vs. eploration analysis confirmation – impact on parameter estimate and hypothesis testing

(229 views)

## PRINCIPAL COMPONENTS ANALYSIS (PCA) Eigenanalysis (Hotelling, 1930’s)

PRINCIPAL COMPONENTS ANALYSIS (PCA) Eigenanalysis (Hotelling, 1930’s). What is it?. PCA allows to explore the relations between multiple variables at the same time and to extract the fundamental structure of the data cloud;

By hartwell-carl
(122 views)

## Principal Component Analysis (Dimensionality Reduction)

Principal Component Analysis (Dimensionality Reduction). By: Tarun Bhatia Y7475. Overview:. What is Principal Component Analysis Computing the compnents in PCA Dimensionality Reduction using PCA A 2D example in PCA Applications of PCA in computer vision

By kato-cook
(105 views)

## Instructor: Prof. Louis Chauvel

Instructor: Prof. Louis Chauvel. Statistical Analysis Multivariate descriptive analysis Factor analysis and clustering (PCA and H CA) + kmeans. Principal components analysis Hierarchic cluster analysis. This session: descriptive multidimensional analysis.

By wethington
(0 views)

## Analisi fattoriale

Metodi Quantitativi per Economia, Finanza e Management Lezione n°7 Analisi Fattoriale: le ipotesi del modello e il metodo delle component principali. Analisi fattoriale. Metodo delle Componenti Principali.

By roachd
(0 views)

## Multiple Regression

Multiple Regression. What is multiple regression?. What is multiple regression? Predicting a score on Y based upon several predictors. Why is this important?

By hetherington
(0 views)

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