Data simulation

[stefanocoretta]

• Data types
  • U-shaped effects
  • Non-linear effects
  • time-series
  • age of onset effect
• 3 datasets: 3 with mgcv + last one with brms too

References

U-shaped learning

• U-shaped learning description
• U-shaped gif
• Long, Michael H. “The Least a Second Language Acquisition Theory Needs to Explain.” TESOL Quarterly, vol. 24, no. 4, 1990, pp. 649–666. JSTOR, www.jstor.org/stable/3587113.
• Shirai, Yaauhiro. “U-shaped Behavior in L2 Acquisition.” Burmeister, H. y Rounds, LP (eds.) (1990).

[jvcasillas]

Added simple simulation example via https://github.com/stefanocoretta/gamm_biling/pull/2

I also accidentally pushed to main (😨), but I reverted it and I think all is good. 😌

[jvcasillas]

In 01_sim_data.qmd the filtering process (line 256) generates a dataframe with no rows. In the same chunk I'm getting error from line 259

Error in `combine_vars()`:
! Faceting variables must have at least one value
Run `rlang::last_trace()` to see where the error occurred.