Hi
>
> Dear R-community,
>
> I am using R (V 2.14.1) on Windows 7. I have a dataset which consists of
19
> variables for 91 individuals or rows. Two of my variables are Age
> (adult/chick, with no NA values) and Sex (0 for females/1 for females,
with
> quite a few NA values). The sex of many
Hello,
Try ?is.na.
In the example below I've changed your first row name from NA to NA.0
x <- read.table(text="
ID Category Sex Beak Head
NA.0NANA NA
NA.1 NANA NA
NA.2 NANA NA
NA.3 NANA NA
NA.4 NA
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