SAS Users
Providing technical tips and support information, written for and by SAS users.
Dementia describes different brain disorders that trigger a loss of brain function. These conditions are all usually progressive and eventually severe. Alzheimer's disease is the most common type of dementia, affecting 62 percent of those diagnosed. Other types of dementia include; vascular dementia affecting 17 percent of those diagnosed, mixed
SAS Visual Investigator has an attractive user interface. One of its most engaging features is the network diagram, which represents related ‘entities’ and the connections between them, allowing an investigator to see and explore relationships in their source data. For maximum impact, each entity in the network diagram should have an
The purpose of this blog post is to demonstrate a SAS coding technique that allows for calculations with multiple variables and multiple observations across a SAS dataset. This technique can be useful for working with time series, clinical trials, - in any data step calculations involving values from different observations.