for non-standard things in the check directory

Maintainer: ‘Richard Wen <rrwen.dev@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Richard",
                    family = "Wen",
                    role = c("aut", "cre"),
                    email = "rrwen.dev@gmail.com")
as necessary.
Found the following files/directories:
  ‘drawBox.pdf’ ‘drawCircle.pdf’ ‘drawCurve.pdf’ ‘drawLine.pdf’
  ‘drawPoint.pdf’ ‘drawSettingsExample.pdf’ ‘drawText.pdf’ ‘export.pdf’
Maintainer: ‘Richard Wen <rrwen.dev@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Richard",
                    family = "Wen",
                    role = c("aut", "cre"),
                    email = "rrwen.dev@gmail.com")
as necessary.
Found the following files/directories:
  ‘drawBox.pdf’ ‘drawCircle.pdf’ ‘drawCurve.pdf’ ‘drawLine.pdf’
  ‘drawPoint.pdf’ ‘drawSettingsExample.pdf’ ‘drawText.pdf’ ‘export.pdf’
Found the following files/directories:
  ‘drawBox.pdf’ ‘drawCircle.pdf’ ‘drawCurve.pdf’ ‘drawLine.pdf’
  ‘drawPoint.pdf’ ‘drawSettingsExample.pdf’ ‘drawText.pdf’ ‘export.pdf’
Found the following files/directories:
  ‘drawBox.pdf’ ‘drawCircle.pdf’ ‘drawCurve.pdf’ ‘drawLine.pdf’
  ‘drawPoint.pdf’ ‘drawSettingsExample.pdf’ ‘drawText.pdf’ ‘export.pdf’
Found the following files/directories:
  ‘drawBox.pdf’ ‘drawCircle.pdf’ ‘drawCurve.pdf’ ‘drawLine.pdf’
  ‘drawPoint.pdf’ ‘drawSettingsExample.pdf’ ‘drawText.pdf’ ‘export.pdf’
Found the following files/directories:
  ‘drawBox.pdf’ ‘drawCircle.pdf’ ‘drawCurve.pdf’ ‘drawLine.pdf’
  ‘drawPoint.pdf’ ‘drawSettingsExample.pdf’ ‘drawText.pdf’ ‘export.pdf’
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory