你即將離開本站

並前往https://www.rdocumentation.org/packages/base/versions/3.6.2/topics/factor

factor function - RDocumentation

If exclude is used, since R version 3.4.0, excluding non-existing character levels is equivalent to excluding nothing, and when exclude is a character vector, ...

確定！ 回上一頁

查詢 「r factor」的人也找了：

  1. r factor用法
    2.
  2. r factor意思
    3.
  3. r factor醫學
    4.
  4. R levels
    5.
  5. R factor level
    6.
  6. R levels NULL
    7.
  7. r table用法
    8.
  8. r語言$意思
    9.