Error(s) in re-building vignettes:
  ...
--- re-building ‘nncc.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/nncc.Rcheck/vign_test/nncc/vignettes/nncc_files/figure-html/unnamed-chunk-6-1.png
576x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 28505 bytes
Input file size = 28619 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 23217
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 23217

Output IDAT size = 23217 bytes (5288 bytes decrease)
Output file size = 23295 bytes (5324 bytes = 18.60% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/nncc.Rcheck/vign_test/nncc/vignettes/nncc_files/figure-html/unnamed-chunk-7-1.png
576x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 25493 bytes
Input file size = 25607 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 20940
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 20940

Output IDAT size = 20940 bytes (4553 bytes decrease)
Output file size = 21018 bytes (4589 bytes = 17.92% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/nncc.Rcheck/vign_test/nncc/vignettes/nncc_files/figure-html/unnamed-chunk-9-1.png
576x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 28797 bytes
Input file size = 28911 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25195
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25195

Output IDAT size = 25195 bytes (3602 bytes decrease)
Output file size = 25273 bytes (3638 bytes = 12.58% decrease)


Quitting from lines 272-303 [unnamed-chunk-19] (nncc.Rmd)
Error: processing vignette 'nncc.Rmd' failed with diagnostics:
there is no package called 'logistf'
--- failed re-building ‘nncc.Rmd’

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

Error: Vignette re-building failed.
Execution halted