title: Plotting a new point value in a boxplot. R and ggplot2
body: <p>I have a simple data frame called msq:</p>
  
  <pre><code>    sex wing    index
  1   h   54      67.4
  2   m   60.5    67.9
  3   m   60      64.5
  4   m   59      66.6
  5   m   63.5    63.3
  6   m   63      66.7
  7   m   61.5    71.8
  8   m   62      67.9
  9   m   63      67.8
  10  m   62.5    72.7
  11  m   61.5    70.3
  12  h   54.5    70.7
  13  m   60      61.1
  14  m   63.5    50.9
  15  m   63      72.1
  </code></pre>
  
  <p>My intention is to make a boxplot with ggplot for which I use this code that works fine:</p>
  
  <pre><code>gplot(msq, aes("index",index))+ geom_boxplot (aes(group="sex"))
  </code></pre>
  
  <p>and then to plot an outlier that should stand alone up in the graph (a value 73.9). The problem is that if I include it in the data set, the boxplot "absorbs" it making the error line longer... I have been looking in Hmisc and to stat_summary but I can't get any clear idea.</p>
  
  <p>thank you.</p>