## Tag: statistics

Programming Tips
2
Summarizing data

Because it is near the end of the year, I thought a blog about "Summarizing" data might be in order. For these examples, I am going to use a simulated data set called Drug_Study, containing some categorical and numerical variables. For those interested readers, the SAS code that I used

Analytics
2
Thomas Bayes’ theorem and “inverse probability”

The following is an excerpt from Cautionary Tales in Designed Experiments by David Salsburg. This book is available to download for free from SAS Press. The book aims to explain statistical design of experiments (DOE) to readers with minimal mathematical knowledge and skills. In this excerpt, you will learn about

5
Testing the Assumption of Normality for Parametric Tests

The t-test is a very useful test that compares one variable (perhaps blood pressure) between two groups. T-tests are called t-tests because the test results are all based on t-values. T-values are an example of what statisticians call test statistics. A test statistic is a standardized value that is calculated

0
Summarization in CASL

Summarizing numeric data is an important step in analyzing your data. CASL provides multiple actions that generate summary statistics. This blog provides a quick overview of three of those actions: SIMPLE.SUMMARY, AGGREGATION.AGGREGATE, and DATAPREPROCESS.RUSTATS.

Programming Tips
17
Which Base procedure is best for simple statistics?

It’s an understatement to say there are many Base SAS procedures! Some procedures may be used for basic report writing. Other procedures may be used to perform statistical analysis. Some have similar functions. Others are unique in the output that they can produce. Which procedure you choose generally depends on

0
Speakers are confirmed for SCSUG 2011

Registration is now open for the  SCSUG 2011 (South Central SAS Users Group) educational forum to be held at the Sheraton Fort Worth Hotel and Spa in Fort Worth, Texas November 6 - 8.  Whet your SAS tastebuds with this lineup of speakers: Keynote Address What’s New in SAS® 9.3 Rick Langston