The R package `stm` was used for topic modeling of LCM abstracts, with date published and city as covariates for topic prevalence. Thirty five topics were used.

stm_res

Format

A `stm` object

Source

See the `lcm_text_mining.Rmd` file in the `data-raw` in the [GitHub repo of this package](https://www.github.com/pachterlab/museumst) for how this model was fitted.