[R] read.table(..., header == FALSE, colClasses = <vector with names attribute>)

[Benjamin Tyner]

Hello

I noticed that starting with R version 3.3.0 onward, this generates a 
warning:

    > txt <- c("a", "3.14")
    > read.table(file = textConnection(txt), header = FALSE, colClasses 
= c(x = "character", y = "numeric"))

the warning is "not all columns named in 'colClasses' exist" and I guess 
the change was made in response to this?

    https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=16478

Regardless, I am wondering whether this is desirable, that as a result 
of the change, the code has become stricter about the presence of a 
(formerly) harmless names attribute. Or am I missing something?

Regards

Ben