Error(s) in re-building vignettes:
  ...
--- re-building ‘AssetAllocation.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/AssetAllocation.Rcheck/vign_test/AssetAllocation/vignettes/AssetAllocation_files/figure-html/all weather 3-1.png
672x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 27009 bytes
Input file size = 27903 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25206
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 25138
  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 = 25138

Output IDAT size = 25138 bytes (1871 bytes decrease)
Output file size = 25216 bytes (2687 bytes = 9.63% decrease)

** Processing: /home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/AssetAllocation.Rcheck/vign_test/AssetAllocation/vignettes/AssetAllocation_files/figure-html/all weather 5-1.png
672x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 29555 bytes
Input file size = 29669 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 26308
  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 = 26083
  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 = 26083

Output IDAT size = 26083 bytes (3472 bytes decrease)
Output file size = 26161 bytes (3508 bytes = 11.82% decrease)


Quitting from lines 154-164 [factors EW bt] (AssetAllocation.Rmd)
Error: processing vignette 'AssetAllocation.Rmd' failed with diagnostics:
missing value where TRUE/FALSE needed
--- failed re-building ‘AssetAllocation.Rmd’

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

Error: Vignette re-building failed.
Execution halted