title: Several labels while using geom_text function
body: <p>I am using the following code and I want to have one label for each bar indicating the value of that bar instead of several labels as shown below. Can someone please help?</p>
  <pre><code>    ggplot(data = iris, aes(x = Species , y = Sepal.Length, fill = Species)) +
        geom_bar(stat = &quot;summary&quot;,
                 show.legend = T,
                 fun = mean) +
        ylab(&quot;Sepal Length&quot;) + xlab(&quot;Types of Species&quot;) +
        ggtitle('Sepal Length vs Species') +
        scale_fill_manual(&quot;legend&quot;,
                          values = c(
                            &quot;setosa&quot; = &quot;black&quot;,
                            &quot;versicolor&quot; = &quot;orange&quot;,
                            &quot;virginica&quot; = &quot;blue&quot;
                          )) + geom_text(aes(label = Sepal.Length))
  </code></pre>
  <p><img src="https://i.stack.imgur.com/H2j6B.png" alt="enter image description here" /></p>