Error in re-building vignettes:
  ...
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.

Attaching package: 'dplyr'

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

    collapse

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Scale for 'y' is already present. Adding another scale for 'y', which
will replace the existing scale.
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Loading required package: Matrix
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
t is large; approximation invoked.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
t is large; approximation invoked.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
t is large; approximation invoked.
t is large; approximation invoked.
t is large; approximation invoked.
t is large; approximation invoked.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
`stat_bin()` using `bins = 30`. Pick better value with `binwidth`.
t is large; approximation invoked.
Quitting from lines 278-335 (gghistostats.Rmd) 
Error: processing vignette 'gghistostats.Rmd' failed with diagnostics:
non-numeric argument to mathematical function
Execution halted