Dear R-help team,
I am getting addicted to using R but keep on getting many challenges on the way
especially on data management (data cleaning).
I have been wanting to drop all the rows if there values are `NA' or have
specific values like 1 or 2 or 3.
mdat <- matrix(1:21, nrow = 7, ncol=3, byrow=TRUE,
dimnames = list(c("row1",
"row2","row3","row4","row5","row6","row7"),
c("C.1", "C.2", "C.3")))
mdat<-data.frame(mdat)
mdat
C.1 C.2 C.3
row1 1 2 3
row2 4 5 6
row3 7 8 9
row4 10 11 12
row5 13 14 15
row6 16 17 18
row7 19 20 21
I want to say drop row if value=1 or value =11 or value =20
How do I do that?
Kind regards,
Lazarus Mramba
Junior Statistician
P.O Box 986, 80108,
Kilifi, Kenya
Mobile No. +254721292370
Tel: +254 41 522063
Tel: +254 41 522390
(office extension : 419)
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