Dr. Murdoch:
I am puzzled!
As you adviced me I do this:
x <- as.character(alumnos$AL_NUME_ID)
x <- x[-seq_len(length(x)/2)]
y <- gsub("(^ +)|( +$)","",x)
And it fails,
But, trying to locate the problem I do:
x <- as.character(alumnos$AL_NUME_ID)
x <- x[-seq_len(length(x)/2)]
x <- x[seq_len(length(x)/2)]
y <- gsub("(^ +)|( +$)","",x)
works
x <- as.character(alumnos$AL_NUME_ID)
x <- x[-seq_len(length(x)/2)]
x <- x[-seq_len(length(x)/2)]
y <- gsub("(^ +)|( +$)","",x)
works
Now, both works!!!
So, I am puzzle!!! I cannot locate the problem.
Thank you for your advice.
Kenneth
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