I have a date frame and in the fourth column there are several NA cells. I would like to know how I can delete all lines that have NA. I used this command but they keep showing up dataframe1
r <- with(dataframe1, which(dataframe1[4]==NA, arr.ind=TRUE))
newd <- dataframe1[-r, ]
The structure of my data is:
dput(head(dataframe1, 10))
structure(list(Sigla = c("AC", "AC", "AC", "AC", "AC", "AC",
"AC", "AC", "AC", "AC"), Código = c(1200013L, 1200054L, 1200104L,
1200138L, 1200179L, 1200203L, 1200252L, 1200302L, 1200328L, 1200336L
), MunicÃ.pio = c("Acrelândia", "Assis Brasil", "Brasiléia",
"Bujari", "Capixaba", "Cruzeiro do Sul", "Epitaciolândia", "Feijó",
"Jordão", "Mâncio Lima"), 'numero de homicidios' = c(4L, NA,
1L, NA, 1L, 1L, NA, 1L, NA, 1L), 'media escolaridade' = c(3.268,
3.72, 3.788, 2.816, 2.417, 4.108, 3.681, 1.948, 1.038, 3.537),
rendimento = c(1042.3834261349, 429.2221666106, 2243.2492197717,
786.6815828794, 603.835515482, 9363.3159742031, 1503.420009265,
1737.0793588989, 130.7838314018, 1040.2388777272), populacao = c(7935L,
3490L, 17013L, 5826L, 5206L, 67441L, 11028L, 26722L, 4454L,
11095L)), .Names = c("Sigla", "Código", "MunicÃ.pio", "numero de homicidios",
"media escolaridade", "rendimento", "populacao"), row.names = c(NA,
10L), class = "data.frame")