Error(s) in re-building vignettes:
--- re-building ‘basic-dutils.Rmd’ using rmarkdown
Quitting from lines 327-328 (basic-dutils.Rmd) 
Error: processing vignette 'basic-dutils.Rmd' failed with diagnostics:
'x' must be numeric
--- failed re-building ‘basic-dutils.Rmd’

--- re-building ‘binomial-family.Rmd’ using rmarkdown
Quitting from lines 348-356 (binomial-family.Rmd) 
Error: processing vignette 'binomial-family.Rmd' failed with diagnostics:
invalid regular expression '^c\(1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 8, 8, 8, 8, 8, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 15, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 19, 19, 20, 20, 20, 21, 22, 22, 22, 22, 23, 23, 23, 23, 26, 26, 26, 26, 26, 27, 27, 27, 28, 29, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 33, 33, 33, 33, 34, 34, 34, 34, 35, 35, 35, 36, 36, 36, 36, 37, 37, 37, 37, 38, 38, 38, 38, 38, 39, 39, 39, 40, 40, 41, 41, 42, 42, 42, 43, 44, 
44, 44, 44, 45, 45, 45, 46, 46, 46, 46, 47, 47, 47, 48, 48, 48, 48, 48, 49, 49, 49, 49, 50, 50, 50, 50, 51, 51, 51, 52, 52, 52, 53, 53, 54, 54, 54, 55, 55, 55, 56, 56, 57, 57, 57, 57, 58, 58, 58, 59, 59, 59, 59, 59, 60, 60, 60, 60, 60, 61, 61, 61, 61, 62, 62, 62, 63, 63, 64, 64, 64, 65, 65, 65, 66, 66, 66, 67, 67, 68, 68, 68, 69, 69, 69, 70, 70, 70, 70, 71, 71, 71, 71, 72, 72, 72, 72, 72, 73, 73, 73, 74, 74, 74, 74, 74, 75, 75, 76, 76, 76, 76, 76, 77, 77, 78, 78,
--- failed re-building ‘binomial-family.Rmd’

--- re-building ‘binomial-twin.Rmd’ using rmarkdown
--- finished re-building ‘binomial-twin.Rmd’

--- re-building ‘binreg-ate.Rmd’ using rmarkdown
--- finished re-building ‘binreg-ate.Rmd’

--- re-building ‘binreg.Rmd’ using rmarkdown
Quitting from lines 152-161 (binreg.Rmd) 
Error: processing vignette 'binreg.Rmd' failed with diagnostics:
'x' must be numeric
--- failed re-building ‘binreg.Rmd’

--- re-building ‘cifreg.Rmd’ using rmarkdown
--- finished re-building ‘cifreg.Rmd’

--- re-building ‘haplo-discrete-ttp.Rmd’ using rmarkdown
--- finished re-building ‘haplo-discrete-ttp.Rmd’

--- re-building ‘interval-discrete-survival.Rmd’ using rmarkdown
--- finished re-building ‘interval-discrete-survival.Rmd’

--- re-building ‘marginal-cox.Rmd’ using rmarkdown
--- finished re-building ‘marginal-cox.Rmd’

--- re-building ‘quantitative-twin.Rmd’ using rmarkdown
Loading required package: ggplot2

Attaching package: 'ggplot2'

The following object is masked from 'package:lava':

    vars

--- finished re-building ‘quantitative-twin.Rmd’

--- re-building ‘recurrent-events.Rmd’ using rmarkdown
--- finished re-building ‘recurrent-events.Rmd’

--- re-building ‘time-to-event-family-studies-arev.Rmd’ using rmarkdown
--- finished re-building ‘time-to-event-family-studies-arev.Rmd’

--- re-building ‘twostage-survival.Rmd’ using rmarkdown
--- finished re-building ‘twostage-survival.Rmd’

SUMMARY: processing the following files failed:
  ‘basic-dutils.Rmd’ ‘binomial-family.Rmd’ ‘binreg.Rmd’

Error: Vignette re-building failed.
Execution halted