Maintainer: ‘Xiaorui (Jeremy) Zhu <zhuxiaorui1989@gmail.com>’

The URL field contains the following bad parts:
  GitHub:
The URL field should be a list of URLs separated by commas or
whitespace.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  plot.Rd: ggplot2
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.
Maintainer: ‘Xiaorui (Jeremy) Zhu <zhuxiaorui1989@gmail.com>’

The URL field contains the following bad parts:
  GitHub:
The URL field should be a list of URLs separated by commas or
whitespace.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  plot.Rd: ggplot2
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  plot.Rd: ggplot2
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  plot.Rd: ggplot2
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  plot.Rd: ggplot2
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  plot.Rd: ggplot2
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.