Posts Tagged ‘ plot ’

Example 9.23: Demonstrating proportional hazards

March 13, 2012
By
Example 9.23: Demonstrating proportional hazards

A colleague recently asked after a slide suitable for explaining proportional hazards. In particular, she was concerned that her audience not focus on the time to event or probability of the event. An initial thought was to display the cumulative haz...
Read more »

Tags: , , , , , , , , ,
Posted in SAS | Comments Off

Example 8.33: Merging data sets one-to-many

April 5, 2011
By
Example 8.33: Merging data sets one-to-many

It's often necessary to combine data from two data sets for further analysis. Such merging can be one-to-one, many-to-one, and many-to-many. The most common form is the one-to-one match, which we cover in section 1.5.7. Today we look at a one-to-man...
Read more »

Tags: , , , , , , , ,
Posted in SAS | Comments Off

Example 8.30: Compare Poisson and negative binomial count models

March 15, 2011
By
Example 8.30:  Compare Poisson and negative binomial count models

How similar can a negative binomial distribution get to a Poisson distribution?When confronted with modeling count data, our first instinct is to use Poisson regression. But in practice, count data is often overdispersed. We can fit the overdispersio...
Read more »

Tags: , , , , , , , , , , ,
Posted in SAS | Comments Off

Example 7.41: hazard function plotting

June 14, 2010
By
Example 7.41: hazard function plotting

As we continue with our series on survival analysis, we demonstrate how to plot estimated (smoothed) hazard functions. RWe will utilize the routines available in the muhaz package. Background information on the methods can be found in K.R. Hess, D.M....
Read more »

Tags: , ,
Posted in SAS | Comments Off

Proc-x is looking for sponsors!

Dear readers, proc-x is looking for sponsors who would be willing to support the site in exchange for banner ads in the right sidebar of the site. If you are interested, please e-mail me at: [email protected]

Welcome!

SAS-X.com offers news and tutorials about the various SAS® software packages, contributed by bloggers. You are welcome to subscribe to e-mail updates, or add your SAS-blog to the site.

SAS and all other SAS Institute Inc. product or service names are registered trademarks or trademarks of SAS Institute Inc. in the USA and other countries. ® indicates USA registration.