删除列中包含NA值的行

Question

我在R中有一个dataset.csv。我想从Rank列中删除所有NA值。

列就像这样

name

此CSV的数据框称为RacePerState

我试过的代码

Rank    State
NA  District of Columbiaâ€
1   Connecticut
2   New Jersey
3   Massachusetts
4   Maryland
5   New Hampshire
6   Virginia
7   New York
8   North Dakota
9   Alaska
10  Minnesota
11  Colorado
12  Washington
13  Rhode Island
14  Delaware
15  California
16  Illinois
17  Hawaii
18  Wyoming
19  Pennsylvania
20  Vermont
NA  United States
21  Iowa

但是当我将数据帧写入csv时，数据仍然存在。

任何帮助？

Answer 1

RacePerState <- subset(RacePerState, !is.na(Rank))

或

RacePerState <- RacePerState[!is.na(RacePerState$Rank), ]

或

RacePerState <- RacePerState[complete.cases(RacePerState), ]

或

require(dplyr);
require(magrittr);
RacePerState %>% na.omit();