search for: chap3_data_exploration

...d like to be able to do is for the 162 different files (or we could call them categories), is compute the ecdf for the values within that category. Then plot the ecdf for each file on the same graph. Essentially, it would look something like http://www-stat.stanford.edu/~jtaylo/courses/stats202/R/chap3_data_exploration/iris_ecdf.png, but instead of the 3 lines, it would show 162. They don't have to be different colors, and the number of records in each file category changes. I was considering using a matrix and adding to it via a loop, but couldn't quite get it to work. This is what I have right now....

Hello Prof. Harrell and dear R-help mailing list, I wish to perform a non-parametric repeated measures anova. If what I read online is true, this could be achieved using a mixed Ordinal Regression model (a.k.a: Proportional Odds Model). I found two packages that seems relevant, but couldn't find any vignette on the subject: http://cran.r-project.org/web/packages/repolr/