Error(s) in re-building vignettes:
  ...
--- re-building ‘glmdisc.Rmd’ using rmarkdown
Iteration 1 ended with a performance of aic = -Inf
Iteration 2 ended with a performance of aic = -123.761073714967
Iteration 3 ended with a performance of aic = -127.854997056628
Iteration 4 ended with a performance of aic = -100.623618716846
Iteration 5 ended with a performance of aic = -132.726541740017
Iteration 6 ended with a performance of aic = -130.467241351513
Iteration 7 ended with a performance of aic = -117.523071224939
Iteration 8 ended with a performance of aic = -133.135223529753
Iteration 9 ended with a performance of aic = -124.080047973395
Iteration 10 ended with a performance of aic = -126.833027254204
Iteration 11 ended with a performance of aic = -129.80360971127
Iteration 12 ended with a performance of aic = -115.475397075383
Iteration 13 ended with a performance of aic = -116.708692234432
Iteration 14 ended with a performance of aic = -123.348349975885
Iteration 15 ended with a performance of aic = -133.114721283763
Iteration 16 ended with a performance of aic = -123.559751367645
Iteration 17 ended with a performance of aic = -119.904644013375
Iteration 18 ended with a performance of aic = -123.193696338977
Iteration 19 ended with a performance of aic = -129.387901713707
Iteration 20 ended with a performance of aic = -125.435854048582
Iteration 21 ended with a performance of aic = -126.855887733042
Iteration 22 ended with a performance of aic = -124.698798016839
Iteration 23 ended with a performance of aic = -121.777926624431
Iteration 24 ended with a performance of aic = -117.80063015639
Iteration 25 ended with a performance of aic = -119.277528789333
Iteration 26 ended with a performance of aic = -111.398198214317
Iteration 27 ended with a performance of aic = -109.946533054431
Iteration 28 ended with a performance of aic = -120.02158463874
Iteration 29 ended with a performance of aic = -120.966771531523
Iteration 30 ended with a performance of aic = -118.141111469703
Iteration 31 ended with a performance of aic = -118.485080856728
Iteration 32 ended with a performance of aic = -124.391323303947
Iteration 33 ended with a performance of aic = -129.821953746079
Quitting from lines 298-301 (glmdisc.Rmd) 
Error: processing vignette 'glmdisc.Rmd' failed with diagnostics:
number of items to replace is not a multiple of replacement length
--- failed re-building ‘glmdisc.Rmd’

SUMMARY: processing the following file failed:
  ‘glmdisc.Rmd’

Error: Vignette re-building failed.
Execution halted