use Test;
BEGIN { plan tests => 5 };
use Statistics::SerialCorrelation 'serialcorrelation';
ok(1);

ok(serialcorrelation(1,2,3,4,5,6,7,8,9,10), 0.454545454545455, "data set one");
ok(serialcorrelation([1,2,3,4,5,6,7,8,9,10]), 0.454545454545455, "and as an arrayref");
ok(serialcorrelation([10,1,3,2,6,7,7,9,2]), -0.256345177664975, "data set two");
ok(serialcorrelation(1,1,1,1,1,1), undef, "undef if div by zero");