The course looks at the theoretical and practical implications of a wide array of clustering techniques that are currently available in SAS. The techniques considered include cluster preprocessing, variable clustering, k-means clustering, and hierarchical clustering.

Изучается

• Prepare and explore data for a cluster analysis.
• Distinguish among many different clustering techniques, making informed choices about which to use.
• Evaluate the results of a cluster analysis.
• Determine the appropriate number of clusters to retain.
• Profile and describe clustered observations.
• Score observations into clusters.

Аудитория

Intermediate- or senior-level statisticians, data analysts, and data miners

Доступные форматы обучения	Продолжительность
Live Web курс:	4 по полдня

Before attending this course, you should:

• Be able to execute SAS programs and create SAS data sets. You can gain this experience by completing the Программирование на языке SAS, Часть 1. Основы course.
• Have completed a graduate-level course in statistics or the Статистика 1: Введение в дисперсионный анализ, линейную и логистическую регрессию course.
• Have an understanding of matrix algebra.

Используется SAS/STAT ПО

Introduction to Clustering

• Overview.
• Types of clustering in this course.

Preparation for Clustering

• Sample selection.
• Variable selection.
• Variable standardization.
• Graphical aids to clustering.
• Within cluster variable transformation.

Hierarchical Clustering

• Measuring similarity.
• Hierarchical clustering methods.
• Determining the number of clusters.

k-Means Clustering

• The k-means clustering algorithm.
• k-means clustering using the FASTCLUS procedure.
• Determining the number of clusters.

Nonparametric Clustering

• Nonparametric clustering.
• Practices.

Cluster Profiling and Scoring

• Cluster profiling.
• Scoring new observations.

Appendix A: Canonical Discriminant Analysis (CDA) Plots

Appendix B: Fuzzy Clustering

Appendix C: Assessing Multivariate Normality

Appendix D: References