my %raw_data = (
	1	=>	100,
	2	=>	160,
	2.5	=>	182,
	3	=>	225
	);


my $regr = regression->new(\%raw_data);
print '$regr= ', Dumper($regr);

$mean_x = $regr->get_mean_x;
print '$mean_x= ', Dumper($mean_x);

##</code><code>##

$regr= $VAR1 = bless( {
                 'mean_y' => '166.75',
                 'raw_data' => {
                                 '1' => 100,
                                 '3' => 225,
                                 '2' => 160,
                                 '2.5' => 182
                               },
                 'slope' => '60.6285714285714',
                 'mean_x' => '2.125',
                 'y_intercept' => '37.9142857142857'
               }, 'regression' );

##</code><code>##

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

##</code><code>##

	#$regr = regression->new(\%{$element_stats_hash{$element_name}{'raw_data'}});
	$regr = regression->new(\%{$element_stats_hash{$element_name}});
	print TEST '$regr= ', Dumper($regr);

##</code><code>##

	$regr = regression->new(\%{$element_stats_hash{$element_name}});
	print TEST '$regr= ', Dumper($regr);

##</code><code>##

'raw_data' => {
                                                 '1229265435' => {
                                                                   '0.12205589' => undef
                                                                 },
                                                 '1229299036' => {
                                                                   '0.71940041' => undef
                                                                 },
                                                 '1229317107' => {
                                                                   '1.22392523' => undef
                                                                 },

##</code><code>##

'raw_data' => {
                                                 '1229265435' => '0.12205589',
                                                 '1229299036' => '0.71940041',
                                	        '1229317107' => '1.22392523'
                                                                 },