Heat maps have many uses. In a previous article, I showed how to use heat maps with a discrete color ramp to visualize matrices that have a small number of unique values, such as certain covariance matrices and sparse matrices. You can also use heat maps with a continuous color
In her article Creating Spaghetti Plots Just got Easy, Lelia McConnell has provided us a glimpse into some new useful features in the SAS 9.4M2 release. The term Spaghetti plots generally refers to cases where time series plots have to be identified by multiple group classifications. The support for the
Are there times when you need to pass special characters to a macro variable but cannot find the right technique to accomplish the task? In this article I’ll discuss the different macro quoting functions and give a simple technique to help you determine which macro quoting function to use. Why
