data analysis

Functions Talk

I gave an introductory talk on making R functions

Cumsum and Diff Tricks

The idea Intervals One day (max) separation Wind Direction Fini There are many instances where you want to look for “trigger” events in a table (data frame) that mark the beginning of a sequence of records that need to be grouped together.

Inaugural Post

I have been keeping a file of solutions to small data analysis problems I find on the internet on my computer, and thought it might be nice to be able to point people at them… which kind of leads to having a blog.