Tutorials

Joint Graphical Lasso

I created a detailed tutorial describing how to use Joint Graphical Lasso (Danaher et. al) analysis in R, with examples using a real-world metabolomics dataset. You can view the full tutorial here.

Presented on 4/1/2022 and 4/8/2022 at UMass Amherst PhD Biostatistics Seminar.

Bayesian Joint Spike-and-slab Graphical Lasso

As a follow-up to the above, I created a tutorial describing how to use Bayesian Joint-Spike-and-slab Graphical Lasso with the same metabolomics dataset. View the full tutorial here.

Tidy Lasso results

I created this brief tutorial which shows how to:

Extract cv.glmnet() results using broom::tidy
Plot those tidy results with ggplot
Calculate a permutation p-value for the min-lambda CV lasso estimates
Add useful visualizations to add to your lasso analysis (like histogram of permutation estimates and pretty heatmap of variable correlations)

gtsummary

I presented a tutorial on the gtsummary package at RLadies NYC in February 2020.