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Analytics | Data Visualization | Learn SAS | Programming Tips

Sanjay MatangeOctober 1, 2017 0

Getting started with SGPLOT - Part 8 - Horizontal HighLow Plot

On a recent visit to an In-House Users Group meeting at a Pharmaceutical company, I presented a 1/2 day seminar on creating Clinical Graphs using SG Procedures. Polling the audience for their experience with these procedures indicated that many SAS users are not familiar with these new ways to create graphs. So,

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Learn SAS | Programming Tips

Results of a data-driven simulation in which parameters are stored in a file and processed by a SAS program

Rick WicklinSeptember 27, 2017 0

Data-driven simulation

In a large simulation study, it can be convenient to have a "control file" that contains the parameters for the study. My recent article about how to simulate multivariate normal clusters demonstrates a simple example of this technique. The simulation in that article uses an input data set that contains

Analytics | Learn SAS

Rick WicklinSeptember 20, 2017 0

Fisher's transformation of the correlation coefficient

Pearson's correlation measures the linear association between two variables. Because the correlation is bounded between [-1, 1], the sampling distribution for highly correlated variables is highly skewed. Even for bivariate normal data, the skewness makes it challenging to estimate confidence intervals for the correlation, to run one-sample hypothesis tests ("Is

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