Error(s) in re-building vignettes:
  ...
--- re-building ‘sadists.Rnw’ using knitr
** Processing: figure/sadistssumchisqpow-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 42408 bytes
Input file size = 42546 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 31768
  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 = 31768

Output IDAT size = 31768 bytes (10640 bytes decrease)
Output file size = 31846 bytes (10700 bytes = 25.15% decrease)

** Processing: figure/sadistskprime-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 37167 bytes
Input file size = 37293 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 28396
  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 = 28396

Output IDAT size = 28396 bytes (8771 bytes decrease)
Output file size = 28474 bytes (8819 bytes = 23.65% decrease)

** Processing: figure/sadistslambdap-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 41087 bytes
Input file size = 41225 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30419
  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 = 30419

Output IDAT size = 30419 bytes (10668 bytes decrease)
Output file size = 30497 bytes (10728 bytes = 26.02% decrease)

** Processing: figure/sadistsupsilon-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 38757 bytes
Input file size = 38883 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29547
  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 = 29547

Output IDAT size = 29547 bytes (9210 bytes decrease)
Output file size = 29625 bytes (9258 bytes = 23.81% decrease)

** Processing: figure/sadistsdnf-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 37788 bytes
Input file size = 37914 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29140
  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 = 29140

Output IDAT size = 29140 bytes (8648 bytes decrease)
Output file size = 29218 bytes (8696 bytes = 22.94% decrease)

** Processing: figure/sadistsdnt-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 38884 bytes
Input file size = 39010 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29340
  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 = 29340

Output IDAT size = 29340 bytes (9544 bytes decrease)
Output file size = 29418 bytes (9592 bytes = 24.59% decrease)

** Processing: figure/sadistsdnbeta-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 39763 bytes
Input file size = 39889 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30519
  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 = 30519

Output IDAT size = 30519 bytes (9244 bytes decrease)
Output file size = 30597 bytes (9292 bytes = 23.29% decrease)

** Processing: figure/sadistsdneta-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40467 bytes
Input file size = 40593 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30436
  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 = 30436

Output IDAT size = 30436 bytes (10031 bytes decrease)
Output file size = 30514 bytes (10079 bytes = 24.83% decrease)

** Processing: figure/sadistssumlogchisq-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40004 bytes
Input file size = 40130 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30180
  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 = 30180

Output IDAT size = 30180 bytes (9824 bytes decrease)
Output file size = 30258 bytes (9872 bytes = 24.60% decrease)

** Processing: figure/sadistsprodchisqpow-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40832 bytes
Input file size = 40958 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 31200
  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 = 31200

Output IDAT size = 31200 bytes (9632 bytes decrease)
Output file size = 31278 bytes (9680 bytes = 23.63% decrease)

** Processing: figure/sadistsproddnf-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 37657 bytes
Input file size = 37783 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 28565
  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 = 28565

Output IDAT size = 28565 bytes (9092 bytes decrease)
Output file size = 28643 bytes (9140 bytes = 24.19% decrease)

** Processing: figure/sadistsprodnormal-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40159 bytes
Input file size = 40285 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30953
  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 = 30953

Output IDAT size = 30953 bytes (9206 bytes decrease)
Output file size = 31031 bytes (9254 bytes = 22.97% decrease)

Error: processing vignette 'sadists.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'sadists.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.352 \hlkwd{require}\hldef
                           {(ggplot2)}
? 
! Emergency stop.
! Emergency stop.
l.352 
      
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘sadists.Rnw’

SUMMARY: processing the following file failed:
  ‘sadists.Rnw’

Error: Vignette re-building failed.
Execution halted