The Scatter Plot Matrix is a great tool that provides a quick visual of potential associations between variables. This may provide the analyst some hints on how to proceed with the analysis. Matrix of lab values for liver function tests are commonly used in clinical research. The SGSCATTER procedure provides an easy way
It is common to want to extract the lower or upper triangular elements of a matrix. For example, if you have a correlation matrix, the lower triangular elements are the nontrivial correlations between variables in your data. As I've written before, you can use the VECH function to extract the
Every summer, SAS hires interns from colleges across the US. Now, I've worked at other organizations, and I've worked with interns before. These guys are brilliant - the rising stars of industry. This year, one of the summer interns is Dylan Sweetwood. He'll be returning to Stanford in the fall,
