Error(s) in re-building vignettes:
--- re-building ‘siland.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/siland.Rcheck/vign_test/siland/vignettes/siland_files/figure-html/unnamed-chunk-5-1.png
672x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 189382 bytes
Input file size = 189736 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 116317
  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 = 116317

Output IDAT size = 116317 bytes (73065 bytes decrease)
Output file size = 116395 bytes (73341 bytes = 38.65% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/siland.Rcheck/vign_test/siland/vignettes/siland_files/figure-html/unnamed-chunk-9-1.png
672x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 21197 bytes
Input file size = 21299 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16939
  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 = 16939

Output IDAT size = 16939 bytes (4258 bytes decrease)
Output file size = 17017 bytes (4282 bytes = 20.10% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/siland.Rcheck/vign_test/siland/vignettes/siland_files/figure-html/unnamed-chunk-11-1.png
672x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 74002 bytes
Input file size = 74188 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 66918
  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 = 66918

Output IDAT size = 66918 bytes (7084 bytes decrease)
Output file size = 66996 bytes (7192 bytes = 9.69% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/siland.Rcheck/vign_test/siland/vignettes/siland_files/figure-html/unnamed-chunk-13-1.png
672x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 21690 bytes
Input file size = 21792 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 17387
  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 = 17387

Output IDAT size = 17387 bytes (4303 bytes decrease)
Output file size = 17465 bytes (4327 bytes = 19.86% decrease)


Quitting from lines 161-162 [unnamed-chunk-14] (siland.Rmd)
Error: processing vignette 'siland.Rmd' failed with diagnostics:
function cannot be evaluated at initial parameters
--- failed re-building ‘siland.Rmd’

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

Error: Vignette re-building failed.
Execution halted