public function setVariance($arr)
{
$this->variances = $arr;
if (isset($this->grid)) {
foreach ($arr as $key => $item) {
if (is_numeric($key)) {
$key = $item;
}
$this->grid->addColumn('html', $key . '_inf', $key . ' info');
$this->grid->addColumn('html,wrap', $key . '_res', $key . ' result');
}
}
}