# Main Page

Scratchings about math by JoDu and friends

# Science

Trying to use this like an open notebook now.

My first effort is a Global cascade model

# Statistics

• Multivariate confidence explores how it is possible to have a predictor with large confidence intervals, but also a large best-guess effect. This is part of our standard cautionary tale about accepting the null hypothesis
• Logistic modeling in R; not very much here (yet).
• Permutation tests
• Centering -- questions about estimating main effects in the presence of interactions