R Lab Values by Time Using Subject Curves

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This graph provides a way to view quickly the values of a lab test over the entire course of a study. By displaying individual curves it is possible to evaluate time course for each subject. If there are a large number of subjects, overplotting may limit the usefulness of this display. The first column contains the treatment group, the second contains the date of the lab measurement, the third contains lab value, and the fourth contains subject IDs.

Test Data


Comma separated data, with column names in first row