Bird Collisions
Bootstrapping
Notable topics: Bootstrapping
Recorded on: 2019-05-02
Timestamps by: Alex Cookson
Screencast
Timestamps
Analyzing when NAs appear in a dimension
Looking at multiple categorical variable at the same time by gathering them into one column and eventually graphing each as a different facet
Re-order facet graphs according to which ones have the fewest categories in them to ones that have the most
Geometric mean for estimating counts when there are a lot of low values (1-3 bird collisions, in this case)
Filling in "blank" observations where there were no observations made
Using log+1 to convert a dimension with values of 0 into a log scale
Adding confidence bounds for data using a geometric mean (where he first gets the idea of bootstrapping)
Actual coding of bootstrap starts
Adding confidence bounds using bootstrap data
Investigating potential confounding variables
Discussing approaches to dealing with confounding variables
Using complete function to get explicit NA values