$regr = regression->new($element_stats_hash{$element_name});

##</code><code>##

$raw_dataPtr = \%{$element_stats_hash{$element_name}{'raw_data'}};
$$raw_dataPtr{$time} = {$var};

##</code><code>##

$element_stats_hash{$element_name}{'raw_data'}{$time} = {$var};

##</code><code>##

Odd number of elements in anonymous hash at noname.pl line 8.