help: https://www.medigraphic.com/pdfs/medfam/amf-2024/amf245b.pdf

For reshaping data, you can use the `pivot_longer()` or `pivot_wider()` function from `dplyr` package:

https://tidyr.tidyverse.org/reference/pivot_longer.html

https://tidyr.tidyverse.org/reference/pivot_wider.html

For multinomial regression and random utility model, this tutorial may help you:

https://cran.r-project.org/web/packages/mlogit/vignettes/c3.rum.html