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 = 42825 bytes
Input file size = 42963 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 31899
  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 = 31899

Output IDAT size = 31899 bytes (10926 bytes decrease)
Output file size = 31977 bytes (10986 bytes = 25.57% decrease)

** Processing: figure/sadistskprime-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 37393 bytes
Input file size = 37519 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 28442
  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 = 28442

Output IDAT size = 28442 bytes (8951 bytes decrease)
Output file size = 28520 bytes (8999 bytes = 23.99% decrease)

** Processing: figure/sadistslambdap-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40538 bytes
Input file size = 40664 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30293
  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 = 30293

Output IDAT size = 30293 bytes (10245 bytes decrease)
Output file size = 30371 bytes (10293 bytes = 25.31% decrease)

** Processing: figure/sadistsupsilon-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 38800 bytes
Input file size = 38926 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29499
  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 = 29499

Output IDAT size = 29499 bytes (9301 bytes decrease)
Output file size = 29577 bytes (9349 bytes = 24.02% decrease)

** Processing: figure/sadistsdnf-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 37469 bytes
Input file size = 37595 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 28789
  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 = 28789

Output IDAT size = 28789 bytes (8680 bytes decrease)
Output file size = 28867 bytes (8728 bytes = 23.22% decrease)

** Processing: figure/sadistsdnt-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 38745 bytes
Input file size = 38871 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29306
  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 = 29306

Output IDAT size = 29306 bytes (9439 bytes decrease)
Output file size = 29384 bytes (9487 bytes = 24.41% decrease)

** Processing: figure/sadistsdnbeta-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40154 bytes
Input file size = 40280 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30685
  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 = 30685

Output IDAT size = 30685 bytes (9469 bytes decrease)
Output file size = 30763 bytes (9517 bytes = 23.63% decrease)

** Processing: figure/sadistsdneta-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40332 bytes
Input file size = 40458 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30575
  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 = 30575

Output IDAT size = 30575 bytes (9757 bytes decrease)
Output file size = 30653 bytes (9805 bytes = 24.24% decrease)

** Processing: figure/sadistssumlogchisq-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40020 bytes
Input file size = 40146 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30412
  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 = 30412

Output IDAT size = 30412 bytes (9608 bytes decrease)
Output file size = 30490 bytes (9656 bytes = 24.05% decrease)

** Processing: figure/sadistsprodchisqpow-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 39871 bytes
Input file size = 39997 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30594
  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 = 30594

Output IDAT size = 30594 bytes (9277 bytes decrease)
Output file size = 30672 bytes (9325 bytes = 23.31% decrease)

** Processing: figure/sadistsproddnf-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 34844 bytes
Input file size = 34970 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 26316
  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 = 26316

Output IDAT size = 26316 bytes (8528 bytes decrease)
Output file size = 26394 bytes (8576 bytes = 24.52% decrease)

** Processing: figure/sadistsprodnormal-1.png
576x360 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 40197 bytes
Input file size = 40323 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30604
  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 = 30604

Output IDAT size = 30604 bytes (9593 bytes decrease)
Output file size = 30682 bytes (9641 bytes = 23.91% 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