public static function print_algorithm_field()
{
$field_name = 'algorithm';
printf('<select id="%1$s" name="nelioab_settings[%1$s]" %2$s>', $field_name, self::get_pro_details());
?>
<option value='<?php
echo NelioABSettings::ALGORITHM_PURE_RANDOM;
?>
'><?php
_e('Default - Pure Random', 'nelioab');
?>
</option>
<option value='<?php
echo NelioABSettings::ALGORITHM_PRIORITIZE_ORIGINAL;
?>
' <?php
if (NelioABSettings::get_algorithm() == NelioABSettings::ALGORITHM_PRIORITIZE_ORIGINAL) {
echo ' selected="selected"';
}
?>
><?php
_e('Prioritize Original Version', 'nelioab');
?>
</option>
<option value='<?php
echo NelioABSettings::ALGORITHM_GREEDY;
?>
' <?php
if (NelioABSettings::get_algorithm() == NelioABSettings::ALGORITHM_GREEDY) {
echo ' selected="selected"';
}
?>
><?php
_e('Prioritize Winner (Greedy)', 'nelioab');
?>
</option>
</select>
<br><div class="the-descr" style="display:none;"><span <?php
echo self::get_pro_details('description');
?>
><?php
_e('Nelio A/B Testing implements different algorithms for deciding which alternative should see each of your visitors.', 'nelioab');
echo '<ul style="list-style-type:disc;margin-left:3em;">';
_e('<li><strong>Pure Random.</strong> All alternatives have the exact same chance to be seen by any of your visitors.</li>', 'nelioab');
_e('<li><strong>Prioritize Original.</strong> The original version is more likely to be shown.</li>', 'nelioab');
_e('<li><strong>Greedy.</strong> Also known as <em>multi-armed bandit</em>, this algorithm makes the best alternative (that is, the one that\'s converting the best) more likely to appear.</li>', 'nelioab');
echo '</ul>';
?>
</span></div>
<?php
}
