I don't understand why I can not close 'f'. This may be very simple,
but I don't see why. Could somebody let me know?
$ cat gzfile.csv
"","V1","V2","V3","V4","V5"
"1",1,5,9,13,17
"2",2,6,10,14,18
"3",3,7,11,15,19
"4",4,8,12,16,20
$ Rscript gzfile.R
> f = file("gzfile.csv")
> A = read.csv(f)
> A
X V1 V2 V3 V4 V5
1 1 1 5 9 13 17
2 2 2 6 10 14 18
3 3 3 7 11 15 19
4 4 4 8 12 16 20
> close(f)
Error in close.connection(f) : invalid connection
Calls: close -> close.connection
Execution halted
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