Error(s) in re-building vignettes:
--- re-building 'admixture-clustering.Rmd' using rmarkdown
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = sample1, sample2 = sample2, known.prop = NULL,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
Warning in IBM_estimProp(sample1 = samples[[couples.list[k, ][1]]], sample2 = samples[[couples.list[k,  :
  In 'IBM_estimProp': optimization algorithm was changed (in 'optim') from 'Nelder-Mead' to 'BFGS' to avoid the solution to explose.
--- finished re-building 'admixture-clustering.Rmd'

--- re-building 'admixture-weight-estimation.Rmd' using rmarkdown
Warning in graphics::par(old_par) :
  argument 1 does not name a graphical parameter
--- finished re-building 'admixture-weight-estimation.Rmd'

--- re-building 'test-hypothesis.Rmd' using rmarkdown
Quitting from lines 50-62 (test-hypothesis.Rmd) 
Error: processing vignette 'test-hypothesis.Rmd' failed with diagnostics:
maximum number of subdivisions reached
--- failed re-building 'test-hypothesis.Rmd'

SUMMARY: processing the following file failed:
  'test-hypothesis.Rmd'

Error: Vignette re-building failed.
Execution halted