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Analytics | Learn SAS | Programming Tips

Rick WicklinNovember 2, 2022 0

The area of a convex hull enables you to estimate the area of a compact region from a set of discrete observations. For example, a biologist might have multiple sightings of a wolf pack and want to use the convex hull to estimate the area of the wolves' territory. A

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Learn SAS | Programming Tips

Rick WicklinOctober 31, 2022 0

A trick to combine and split strings

Every year, I write a special article for Halloween in which I show a SAS programming TRICK that is a real TREAT! This year, the trick is to concatenate two strings into a single string in a way that guarantees you can always recover the original strings. I learned this

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Analytics | Data Visualization | Learn SAS

Rick WicklinOctober 26, 2022 0

Visualize dependencies of missing values

A SAS programmer asked how to create a graph that shows whether missing values in one variable are associated with certain values of another variable. For example, a patient who is supposed to monitor his blood glucose daily might have more missing measurements near holidays and in the summer months

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