背景：已安装robust包

> edit(data(breslow.dat,package='robust'))
Error in read.table(zfile, header = TRUE, as.is = FALSE) :
  列的数目比列的名字要多
此外: Warning messages:
1: In read.table(zfile, header = TRUE, as.is = FALSE) :
  line 1 appears to contain embedded nulls
2: In read.table(zfile, header = TRUE, as.is = FALSE) :
  line 2 appears to contain embedded nulls
3: In read.table(zfile, header = TRUE, as.is = FALSE) :
  incomplete final line found by readTableHeader on 'E:\R璇瑷\R-3.3.2\library\robust/data/breslow.dat.txt.gz'
> names(breslow.dat)
错误: 找不到对象'breslow.dat'

求大神指点