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Empty file gets a fatal divide-by-zero. print (NR ? sum / NR : "NaN")

Paul_Pedant
– Paul_Pedant

2019-12-20 16:15:57 +00:00
Commented Dec 20, 2019 at 16:15
6

@Paul_Pedant: Don't use it on an empty file.

jesse_b
– jesse_b

2019-12-20 16:16:12 +00:00
Commented Dec 20, 2019 at 16:16
I wouldn't. But users are a whole new thing. I like your initialising from NR==1. I use BEGIN and some arbitrary max and min, and it always looks clumsy.

Paul_Pedant
– Paul_Pedant

2019-12-20 16:19:58 +00:00
Commented Dec 20, 2019 at 16:19
4

If it's being run against an empty file it should error IMO because something has been done wrong.

jesse_b
– jesse_b

2019-12-20 16:20:42 +00:00
Commented Dec 20, 2019 at 16:20

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