1. D

    plot a subset of intervals after lmList

    Dear reader, I am a first timer here (and an R newbie), so please tell me if you need more information to answer the following question: I have grouped data on insurance premiums for 7 companies. I estimated 7 individual linear models using lmList of the nlme library. Afterwards I can plot...
  2. S

    Repeated measures with unequal intervals

    When analyzing within-group measures (or within-between 'mixed' ANOVA), how do we handle repeated measures that have been collected at unequal intervals? For instance, data (such as weight, cholesterol, hemoglobin) was collected at baseline, 1 hour later, 3 days later, 2 months later, and one...