Error(s) in re-building vignettes:
  ...
--- re-building ‘gsignal.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/pulstran-1.png
672x672 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 32834 bytes
Input file size = 33740 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30128
  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 = 22316
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 22272
  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 = 5		IDAT size = 22272

Output IDAT size = 22272 bytes (10562 bytes decrease)
Output file size = 22350 bytes (11390 bytes = 33.76% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/findpeaks-1.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 33395 bytes
Input file size = 33521 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0
  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 = 30337
  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 = 30337

Output IDAT size = 30337 bytes (3058 bytes decrease)
Output file size = 30415 bytes (3106 bytes = 9.27% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/findpeaks-2.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 45417 bytes
Input file size = 45555 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0
  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 = 41660
  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 = 41660

Output IDAT size = 41660 bytes (3757 bytes decrease)
Output file size = 41738 bytes (3817 bytes = 8.38% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/fir-1.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 29990 bytes
Input file size = 30104 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 24207
  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 = 24207

Output IDAT size = 24207 bytes (5783 bytes decrease)
Output file size = 24285 bytes (5819 bytes = 19.33% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/fir-2.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 31580 bytes
Input file size = 31694 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25447
  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 = 25447

Output IDAT size = 25447 bytes (6133 bytes decrease)
Output file size = 25525 bytes (6169 bytes = 19.46% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/fir-3.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 35598 bytes
Input file size = 35724 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 35009
  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 = 32582
  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 = 32582

Output IDAT size = 32582 bytes (3016 bytes decrease)
Output file size = 32660 bytes (3064 bytes = 8.58% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/fir-4.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 33541 bytes
Input file size = 33667 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 28138
  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 = 28138

Output IDAT size = 28138 bytes (5403 bytes decrease)
Output file size = 28216 bytes (5451 bytes = 16.19% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/FIR_delay-1.png
672x672 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 77904 bytes
Input file size = 78090 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 70448
  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 = 70448

Output IDAT size = 70448 bytes (7456 bytes decrease)
Output file size = 70526 bytes (7564 bytes = 9.69% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/iir-1.png
672x672 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 51709 bytes
Input file size = 51859 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 42528
  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 = 42528

Output IDAT size = 42528 bytes (9181 bytes decrease)
Output file size = 42606 bytes (9253 bytes = 17.84% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/zplane-1.png
672x672 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 56522 bytes
Input file size = 56672 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 56265
  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 = 52017
  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 = 52017

Output IDAT size = 52017 bytes (4505 bytes decrease)
Output file size = 52095 bytes (4577 bytes = 8.08% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/IIR_delay-1.png
672x672 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 20126 bytes
Input file size = 21008 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 18316
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 18263
  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 = 18263

Output IDAT size = 18263 bytes (1863 bytes decrease)
Output file size = 18341 bytes (2667 bytes = 12.70% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/gsignal.Rcheck/vign_test/gsignal/vignettes/gsignal_files/figure-html/IIR_filtfilt-1.png
672x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 59261 bytes
Input file size = 59423 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0
  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 = 55781
  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 = 55781

Output IDAT size = 55781 bytes (3480 bytes decrease)
Output file size = 55859 bytes (3564 bytes = 6.00% decrease)


Quitting from lines 360-378 [conv2] (gsignal.Rmd)
Error: processing vignette 'gsignal.Rmd' failed with diagnostics:
there is no package called 'ggplot2'
--- failed re-building ‘gsignal.Rmd’

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

Error: Vignette re-building failed.
Execution halted