Report from PharmaSUG 2013

Sanjay Matange
Sanjay Matange|May 16, 2013

The PharmaSUG 2013 conference in Chicago this week was awesome.  From the perspective of graphics, there was great interest in using SG Procedures, Designer and GTL for building clinical graphs.  It was nice to see many papers by users on how they are using these tools for creating graphs on a daily [...]

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Multiple Classifiers vs Small Multiples

Sanjay Matange
Sanjay Matange|January 14, 2013

Often we have the need to see the data by two different classifiers at the same time, as requested by a recent query on the SAS Communities page. In this example I have simulated a response over time for patients by study and treatment.  We want to create series plots [...]

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Report from WUSS 2012

Sanjay Matange
Sanjay Matange|September 15, 2012

A week ago, SAS “wusses” got together in Long Beach, California for another successful WUSS conference.  Personally, I really enjoy all SAS user conferences as it gives me an opportunity to see the creative ways in which SAS users are exploiting our software. One such case was the paper “Power [...]

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Risk tables, annotated or not

Sanjay Matange
Sanjay Matange|July 15, 2012

A key element of graphs used for analysis of safety data for clinical research is the inclusion of statistical data (or tables) about the study that are aligned with the x axis of the graph.  A common example of this comes from the paper “Graphical Approaches to the Analysis of [...]

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LFT Panels

Sanjay Matange
Sanjay Matange|June 10, 2012

CTSPedia.org is a website of Knowledge Base for Clinical and Translational Research.  On this site you can find sample graphs for statistical analysis of safety data for Clinical Research.  Graphs included in this resource have been submitted by contributors, and include a graph for Liver Function for different tests by treatment. [...]

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SAS Global Forum Monday update

Sanjay Matange
Sanjay Matange|April 23, 2012

On Friday before the conference, I presented a 1 day “developer led” seminar on SG Procedures and GTL, along with a discussion of new features for SAS 9.3.  The experience was very gratifying as all users were now using SAS 9.2, and some were using SAS 9.3.  We had a lively [...]

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Distribution of Maximum LFT by Treatment

Sanjay Matange
Sanjay Matange|February 16, 2012

The graph showing the distribution of the maximum liver function test values by treatment for all participants in a study is commonly used for the analysis of safety data in clinical trials.   The data is often structured in multiple columns (one per treatment) as below on the left, or grouped by [...]

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Secrets of statistical graphics procedures revealed

Sanjay Matange
Sanjay Matange|December 15, 2011

A new book from SAS Press, “Statistical Graphics Procedures by Example” co-authored by Dan Heath and I has now been published (phew!).  For both Dan and I, this was our first foray into writing a book, so it was highly educational to say the least. The key idea behind the presentation [...]

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SGPLOT with axis-aligned statistics columns

Sanjay Matange
Sanjay Matange|November 23, 2011

In a previous article we discussed how to add axis aligned statistics table to a Lipid graph using GTL.  Other graphs such as the Survival Plot also utilize the same technique to display the “at risk” statistics aligned by time or visits along the X axis. Often, we also need to display [...]

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Graphs with axis-aligned statistics tables

Sanjay Matange
Sanjay Matange|November 12, 2011

The display of statistics, aligned with graphical plot of the data, is a common requirement for graphs, especially in the Clinical Research domain.  In the previous post on Discrete Offset, I used an example of the Lipid Profile graph.  Now, let us use the same example and add the display of statistics in [...]

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