R ggplot geom_bar（）标签栏（带'count'）

Question

我有一个像这样的ggplot：

class SiteServiceApplicationLoader extends SimpleApplicationLoader {
  type MyComponents = SiteApplicationComponents
  def newMyComponents(context: Context): MyComponents = 
    new SiteApplicationComponents(context)
}

如果没有定义y轴，如何用y轴的结果标记条形？ （不改变df）

Answer 1

<?php
$options = array(
    'East', 'West', 'North', 'South',
);
?>
<select name="District">
    <?php foreach($options as $option) { ?>
        <option value="<?php echo $option; ?>" <?php echo (isset($_SESSION['District']) && $_SESSION['District'] == $option) ? "selected" : "" ?>><?php echo $option; ?></option>
    <?php } ?>
</select>