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Data Visualization
Sanjay Matange 0
Simpler is better

A recent article in the SAS and R blog was about current winter temperatures in Albany, NY.  The temperature data for the recent winter (Dec 2011 - Mar 2012) was plotted on a polar graph. Robert Allison posted an article on displaying the same data as a Polar Graph using SAS/GRAPH .  Here is his

Data Visualization
Sanjay Matange 0
Bar-Line graph

A user recently posted a question in the SAS communities forum about  how to best display two measures by one classifier using a Bar-Line graph, where the scale of the two measures is vastly different.  This got me thinking about various different ways to represent such data.  Here are some of my thoughts,

Students & Educators
Nadja Young 0
More than “teaching to the test”: Value-added ROI persists throughout a student’s life

A 23-year Harvard and Columbia University study was recently published shedding new light on the long-term impacts of teachers with both high and low value-added estimates. Researchers Chetty, Friedman, and Rockoff tracked math and reading assessment data on over 2.5 million students from 1989-2009. They then incorporated 90% of these

Data Visualization
Sanjay Matange 0
Cluster groups

The topic of cluster groups comes up often.  By cluster group I am referring to the feature in bar charts where the group values are displayed side by side. With SAS 9.3, SG Procedures support stack or cluster grouping for Bar Charts and overlay or cluster grouping for all other

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