Somewhat simpler version: 

my( $n,  %h ) = -1;
my @a = map{ $h{$_} //= $n+=2 } qw[ M94202 M94150 M94297 M94150 M94161
+ M94161 M94162 ];;

print @a;;
1 3 5 3 7 7 9

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In reply to Re: Replacing values in an array by BrowserUk
in thread Replacing values in an array by tonto

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