You can add addAttributeToFilter to the collection for feature attribute like
$collection = Mage::getModel('catalog/product')->getCollection();
$collection->addAttributeToFilter('feature', array('eq' => 'Yes')); // or 0 or 1 iff you are using Boolean values
foreach ($collection as $product) {
//var_dump($product);
var_dump($product->getData());
}