R count number of na
Similar codes
- 0 vote214 views1 answer
- 2 votes213 views3 answers
- 1 vote234 views1 answer
- 1 vote222 views1 answer
- 0 vote236 views1 answer
- 1 vote216 views1 answer
- 0 vote246 views2 answers
- 0 vote252 views1 answer
- -1 vote269 views2 answers
- 0 vote241 views1 answer