Reputation: 792
Here's what had happened:
> NA.of.df = which(rowSums(is.na(df)) == ncol(df))
> NA.of.df
named integer(0)
> fix(df) # i want to see what's in here -- nothing wrong
> NA.of.df # so i run it again
1 3 5 7 9 # it works!
why would this happens??
A producible example (but doesn't seems like any data structure with dput()
) is like the following:
> dput(NA.of.df)
structure(integer(0), .Names = character(0))
and NA.of.df
is just the code for finding rows with all NAs (obtained from here:
Remove rows in R matrix where all data is NA). (i.e. NA.of.df = which(rowSums(is.na(df)) == ncol(df))
)
Upvotes: 2
Views: 82
Reputation: 887991
It could be an issue with quotes around the NA
resulting in is.na
to not pick up those elements
is.na(c(NA, "NA"))
#[1] TRUE FALSE
After doing the fix
, it may have dropped the quotes and evaluate it correctly
Upvotes: 2