You are accidentally using real references already. Your data is by chance stored in HASHREFs stored in an array referenced by $fields. I am amazed. :-)

As you say you are inexperienced, there are two standard tips I ought to give: (1) use strict; -- always use strict; (2) Do not try to access variables by name. This is called using symbolic references (as opposed to real reaferences), and you should not use them until you know why you should not use them.

As noted, it is by chance, but your program will do what you want if you just use this sprintf line instead: 

printf "%.1f\t%.1f\t%.1f\n", $fields->[0]{1}, $fields->[1]{1}, $fields
+->[2]{1};

[download]
... but you don't want to do that. You want to use strict and write proper code. And you want to know what you are doing. At least you should be able to explain why there is such a weird mix of different braces in that expression of mine. perldoc perlreftut is as good a place as any to start.

print "Just another Perl ${\(trickster and hacker)},"
The Sidhekin proves Sidhe did it!

In reply to Re: Interpolating an array element as a hash name. by Sidhekin
in thread Interpolating an array element as a hash name. by yam

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