Error(s) in re-building vignettes:
--- re-building ‘introduction.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-28-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 36617 bytes
Input file size = 36743 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 26166
  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 = 26166

Output IDAT size = 26166 bytes (10451 bytes decrease)
Output file size = 26244 bytes (10499 bytes = 28.57% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-28-2.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 38887 bytes
Input file size = 39013 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 27823
  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 = 27823

Output IDAT size = 27823 bytes (11064 bytes decrease)
Output file size = 27901 bytes (11112 bytes = 28.48% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-28-3.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 8914 bytes
Input file size = 9004 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 8136
  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		IDAT size = 7598
  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 = 5		IDAT size = 7598

Output IDAT size = 7598 bytes (1316 bytes decrease)
Output file size = 7676 bytes (1328 bytes = 14.75% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-28-4.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 11328 bytes
Input file size = 11418 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 9791
  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		IDAT size = 9777
  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 = 5		IDAT size = 9777

Output IDAT size = 9777 bytes (1551 bytes decrease)
Output file size = 9855 bytes (1563 bytes = 13.69% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-29-1.png
576x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 7076 bytes
Input file size = 7934 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 6165
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 6165
  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 = 1  f = 0		IDAT size = 6165

Output IDAT size = 6165 bytes (911 bytes decrease)
Output file size = 6243 bytes (1691 bytes = 21.31% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-30-1.png
576x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 7750 bytes
Input file size = 8608 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 6714
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 6699
  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 = 1  f = 0		IDAT size = 6699

Output IDAT size = 6699 bytes (1051 bytes decrease)
Output file size = 6777 bytes (1831 bytes = 21.27% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-31-1.png
576x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 7391 bytes
Input file size = 8249 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 6110
  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 = 6110

Output IDAT size = 6110 bytes (1281 bytes decrease)
Output file size = 6188 bytes (2061 bytes = 24.98% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-38-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 29647 bytes
Input file size = 29761 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21674
  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 = 21674

Output IDAT size = 21674 bytes (7973 bytes decrease)
Output file size = 21752 bytes (8009 bytes = 26.91% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-38-2.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 31562 bytes
Input file size = 31676 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 24683
  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 = 24683

Output IDAT size = 24683 bytes (6879 bytes decrease)
Output file size = 24761 bytes (6915 bytes = 21.83% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-42-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 30850 bytes
Input file size = 30964 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 22483
  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 = 22483

Output IDAT size = 22483 bytes (8367 bytes decrease)
Output file size = 22561 bytes (8403 bytes = 27.14% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-42-2.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 32103 bytes
Input file size = 32217 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25854
  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 = 25854

Output IDAT size = 25854 bytes (6249 bytes decrease)
Output file size = 25932 bytes (6285 bytes = 19.51% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-43-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 10521 bytes
Input file size = 10611 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 8733
  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 = 8733

Output IDAT size = 8733 bytes (1788 bytes decrease)
Output file size = 8811 bytes (1800 bytes = 16.96% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-43-2.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 27297 bytes
Input file size = 27411 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21070
  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 = 21070

Output IDAT size = 21070 bytes (6227 bytes decrease)
Output file size = 21148 bytes (6263 bytes = 22.85% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-44-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 11369 bytes
Input file size = 11459 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 9420
  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 = 9420

Output IDAT size = 9420 bytes (1949 bytes decrease)
Output file size = 9498 bytes (1961 bytes = 17.11% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/RSDA.Rcheck/vign_test/RSDA/vignettes/introduction_files/figure-html/unnamed-chunk-45-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 15690 bytes
Input file size = 15780 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 12660
  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 = 12660

Output IDAT size = 12660 bytes (3030 bytes decrease)
Output file size = 12738 bytes (3042 bytes = 19.28% decrease)