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Programming Tips

Chris HemedingerNovember 14, 2018 0

Create newline-delimited JSON (or JSONL) with SAS

JSON is a popular format for data exchange between APIs and some modern databases. It's also used as a way to archive audit logs in many systems. Because JSON can represent hierarchical relationships of data fields, many people consider it to be superior to the CSV format -- although it's

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Programming Tips

Steven SoberNovember 14, 2018 0

How to achieve repeatable results with distributed DATA Step BY Groups

Prior to distributed DATA Step, DATA Step programmers never had to think about achieving repeatable results because DATA Step ran single-threaded and the source SAS7BDAT dataset was stored on disk. But if you need to obtain repeatable results in DATA Step code that runs distributed in CAS, this post provides a workaround that you'll want to keep handy.

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Analytics | Data Visualization | Programming Tips

Rick WicklinNovember 14, 2018 0

Create and compare ROC curves for any predictive model

An ROC curve graphically summarizes the tradeoff between true positives and true negatives for a rule or model that predicts a binary response variable. An ROC curve is a parametric curve that is constructed by varying the cutpoint value at which estimated probabilities are considered to predict the binary event.

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