Export Excel to a Fixed Width Text File

Language R

Interesting web sites/pages related to Language R:

Sentiment Mining Video
Text Mining Infrastructure in R
tm - Text Mining Package

Text Mining Handbook

Introduction to the tm Package

textmining 1.0 - Python Text Mining Utilities

Perl Text Mine

Collection of Web Sites About Data Mining

Bing Liu: Data Mining and Text Mining Course - Fall 2007

Adam Waterworth's Cluster Algorithms for Web Applications

Collection of SAS Example Code and Data

SAS Press and SAS Documentation
Common Statistical Methods for Clinical Research with SAS Examples, Third Edition
Robert Allison's SAS/Graph Examples
UCLA Statistical Computing - SAS Textbook Example

How to Memorize p-value

When it comes to test hypotheses, nothing is more important than p-value. If you have hard time to understand or memorize the use of p-value. Here is a simple way to remember it. P-value is the probability that the null hypothesis is true. When this value is too small and below a pre-set threshold, we can confidently reject the null hypothesis. This threshold is called the significant level. This value is set by the investigator and normally is 0.05 or 0.01.

Good Tutorial for PROC SQL used in Clinical Trial Data Management

http://www.nesug.org/proceedings/nesug04/hw/hw06.pdf

Market Basket Analysis Macro

here