print(object.size(airquality),units =“kb”)

print(object.size(airquality),units =“kb”)

结果显示错误

Error in match.arg(units, c("auto", unique(unlist(known_units), use.names = FALSE))) : 

  'arg'应当是“auto”, “B”, “kB”, “MB”, “GB”, “TB”, “PB”, “EB”, “ZB”, “YB”, “KiB”, “MiB”, “GiB”, “TiB”, “PiB”, “EiB”, “ZiB”, “YiB”, “b”, “Kb”, “Mb”, “Gb”, “Tb”, “Pb”, “KB”其中的一个

这是怎么回事