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Biostatistics by Example Using SAS® Studio
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Biostatistics by Example Using SAS® Studio
by Ron Cody
Biostatistics by Example Using SAS Studio
About This Book
About The Author
Acknowledgments
Chapter 1: What Is the SAS University Edition?
Introduction
How to Download the SAS University Edition
Conclusions
Chapter 2: SAS Studio Tasks
Introduction
Using the Built-in Tasks
Taking a Tour of the Navigation Pane
Exploring the LIBRARIES Tab
Moving Columns
Sorting Columns
Filtering a Table (subsetting rows)
Conclusion
Chapter 3: Importing Data into SAS
Introduction
Exploring the Utilities Tab
Importing Data from an Excel Workbook
Listing the SAS Data Set
Importing an Excel Workbook with Invalid SAS Variable Names
Importing an Excel Workbook That Does Not Have Column Headings
Importing Data from a CSV File
Shared Folders (Accessing Data from Anywhere on Your Hard Drive)
Demonstrating How to Read Data from a Shared Folder
Conclusions
Problems
Chapter 4: Reading Data from Text Files
Introduction
Understanding the Work Area
Some Basic Rules of SAS Programs
Writing a Program to Read a Text File Where Data Values Are Separated by Delimiters
Viewing Errors and Warnings
Reading CSV Files
Reading Text Files with Other Delimiters
Setting the Length of Character Variables
Reading Text Data in Fixed Columns
Conclusions
Problems
Chapter 5: Descriptive Statistics – Univariate Analysis
Introduction
Generating Descriptive Statistics for Continuous Variables
Investigating the Distribution for Systolic Blood Pressure
Adding a Classification Variable in the Summary Statistics Tab
Describing Categorical Variables
Editing the SAS Code Generated by the One-Way Frequencies Statistics Task
Conclusions
Problems
Chapter 6: One-Sample Tests
Introduction
Performing a One-Sample t Test
Nonparametric One-sample Tests
Conclusions
Problems
Chapter 7: Two-Sample Tests
Introduction
Unpaired t Test (t Test for Independent Groups)
Nonparametric Two-sample Tests
Paired t Test
Conclusions
Problems
Chapter 8: Comparing More Than Two Means (ANOVA)
Introduction
Performing a One-Way Analysis of Variance
Performing a Nonparametric One-Way Tests
Conclusions
Problems
Chapter 9: N-Way ANOVA
Introduction
Performing a Two-Way Analysis of Variance
Selecting a Random Sample
Using the N-Way ANOVA Task
Interpreting the Two-Way ANOVA Results
Interpreting Models with Significant Interactions
Conclusions
Problems
Chapter 10: Correlation
Introduction
Creating a Permanent SAS Data Set
Reading the Exercise.xls Workbook and Creating a Permanent SAS Data Set
Using the Statistics Correlation Task
Generating Correlation and Scatter Plot Matrices
Interpreting Correlation Coefficients
Generating Spearman Non-Parametric Correlations
Conclusions
Problems
Chapter 11: Simple and Multiple Regression
Introduction
Describing Simple Linear Regression
Understanding the Diagnostic Plots
Demonstrating Multiple Regression
Demonstrating Stepwise Multiple Regression
Conclusions
Problems
Chapter 12: Binary Logistic Regression
Introduction
Preparing the Birth Weight Data Set for Logistic Regression
Selecting Reference Levels for Your Model
Conclusions
Problems
Chapter 13: Analyzing Categorical Data
Introduction
Describing the Heart_Attack Data Set
Computing One-Way Frequencies
Creating Formats
Producing One-Way Tables with Formats
Creating Two-Way Tables
Using Formats to Reorder the Rows and Columns of a Table
Computing Chi-Square from Frequency Data
Analyzing Tables with Low Expected Values
Conclusions
Problems
Chapter 14: Computing Power and Sample Size
Introduction
Computing Sample Size for a t Test
Calculating the Sample Size for a Test of Proportions
Computing Sample Size for a One-Way ANOVA Design
Conclusions
Problems
Instructions for Problem Sets
How to Use the Problem Set Data Files
How to Create a SAS Library
Using a SAS Data Set in the PROBLEMS Library
Appendix: Solutions to the Odd-Numbered Problems
Index
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