Package suggested but not available for checking: ‘zdat’
Problems with news in ‘NEWS.md’:
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Documented arguments not in \usage in Rd file 'plot_curves.Rd':
  ‘fix.x’

Functions with \usage entries need to have the appropriate \alias
entries, and all their arguments documented.
The \usage entries must correspond to syntactically valid R code.
See chapter ‘Writing R documentation files’ in the ‘Writing R
Extensions’ manual.
Package suggested but not available for checking: ‘zdat’
Problems with news in ‘NEWS.md’:
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Documented arguments not in \usage in Rd file 'plot_curves.Rd':
  ‘fix.x’

Functions with \usage entries need to have the appropriate \alias
entries, and all their arguments documented.
The \usage entries must correspond to syntactically valid R code.
See chapter ‘Writing R documentation files’ in the ‘Writing R
Extensions’ manual.
Package required but not available: ‘rgdal’

Package suggested but not available for checking: ‘zdat’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Package required but not available: ‘rgdal’

Package suggested but not available for checking: ‘zdat’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Package suggested but not available for checking: 'zdat'
Problems with news in 'NEWS.md':
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Documented arguments not in \usage in Rd file 'plot_curves.Rd':
  'fix.x'

Functions with \usage entries need to have the appropriate \alias
entries, and all their arguments documented.
The \usage entries must correspond to syntactically valid R code.
See chapter 'Writing R documentation files' in the 'Writing R
Extensions' manual.
Package suggested but not available for checking: ‘zdat’
Problems with news in ‘NEWS.md’:
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Package suggested but not available for checking: ‘zdat’
Problems with news in ‘NEWS.md’:
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Package suggested but not available for checking: ‘zdat’
Problems with news in ‘NEWS.md’:
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Package suggested but not available for checking: ‘zdat’
Problems with news in ‘NEWS.md’:
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Package suggested but not available for checking: 'zdat'
Problems with news in 'NEWS.md':
  Cannot extract version info from the following section titles:
    NEW DEPENDENCIES
Package suggested but not available for checking: ‘zdat’
Package suggested but not available for checking: ‘zdat’
Package suggested but not available for checking: 'zdat'