in reply to Imputation of data

working at inner array level, something like:

my $bad = 9;
my @filteredAoA = map { $bad ~~ @$_ ? () : [@$_] } @AoA;

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L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In Section Seekers of Perl Wisdom