If you need a particular format of your number in order to get a desired behavior, you need to control how your number gets converted into a string. This is usually done using
sprintf. For example
$ifac{sprintf "%.3f" $factor}
will cause the key accessed to be a floating point number with 3 decimal places, thus forcing the numbers to yield appropriate strings. It also avoids the potential
6.269999999999999999 problem.
In your case, your issue begins with your hash creation:
use Data::Dumper;
my %ifac= (
14.152 => "JCI",
9.334 => "JHEP",
5.745 => "JIMM",
6.270 => "JID",
1.480 => "JRN",
6.105 => "KI"
);
print Dumper \%ifac;
prints
$VAR1 = {
'6.105' => 'KI',
'1.48' => 'JRN',
'9.334' => 'JHEP',
'5.745' => 'JIMM',
'6.27' => 'JID',
'14.152' => 'JCI'
};
You need to control string format on input, which means using strings not numbers for initialization:
my %ifac= (
'14.152' => "JCI",
'9.334' => "JHEP",
'5.745' => "JIMM",
'6.270' => "JID",
'1.480' => "JRN",
'6.105' => "KI"
);
#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.
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