Error(s) in re-building vignettes:
--- re-building ‘rasterdiv_advanced_accRao.Rmd’ using rmarkdown
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: rasterdiv
Loading required package: rasterVis
Loading required package: raster
Loading required package: sp
Loading required package: lattice
Loading required package: latticeExtra
Loading required package: ggplot2

Attaching package: 'ggplot2'

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

    layer

Loading required package: gridExtra
Matrix check OK: 
Parametric Rao output matrix will be returned


Processing alpha 1


Processing alpha 2


Processing alpha 3


Processing alpha 4


Processing alpha 5


Processing alpha 6


Processing alpha 7


Processing alpha 8


Processing alpha 9


Processing alpha 10

Integrating numerically Rao values over alphas...

Quitting from lines 61-67 (rasterdiv_advanced_accRao.Rmd) 
Error: processing vignette 'rasterdiv_advanced_accRao.Rmd' failed with diagnostics:
unused argument (na.rm = TRUE)
--- failed re-building ‘rasterdiv_advanced_accRao.Rmd’

--- re-building ‘rasterdiv_basics.Rmd’ using rmarkdown
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: rasterdiv
Loading required package: rasterVis
Loading required package: raster
Loading required package: sp
Loading required package: lattice
Loading required package: latticeExtra
Loading required package: RColorBrewer

Object x check OK: 
Shannon output matrix will be returned.

Calculation complete.


Object x check OK: 
Pielou output matrix will be returned.

Calculation complete.


Object x check OK: 
Berger-Parker output matrix will be returned.

Calculation complete.

Matrix check OK: 
Rao output matrix will be returned

Calculation of Rao's index complete.

Matrix check OK: 
Parametric Rao output matrix will be returned


Processing alpha 1


Processing alpha 2


Processing alpha 3


Processing alpha 4


Processing alpha 5
Matrix check OK: 
Cumulative Residual Entropy output matrix will be returned

Calculation of Cumulative Residual Entropy complete.


Object x check OK: 
Hill with alpha parameter value in  0 0.5 1 1.5 2  will be returned.


Processing alpha 0


Processing alpha 0.5


Processing alpha 1


Processing alpha 1.5


Processing alpha 2


Calculation complete.


Object x check OK: 
Renyi with alpha parameter value in  0 0.5 1 1.5 2  will be returned.

Processing alpha 0


Processing alpha 0.5


Processing alpha 1


Processing alpha 1.5


Processing alpha 2


Calculation complete.

--- finished re-building ‘rasterdiv_basics.Rmd’

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

Error: Vignette re-building failed.
Execution halted