title: Boxplot in gnuplot. How to plot different groups in one boxplot?
body: <p>I have a file with 10 columns of data (<a href="https://drive.google.com/file/d/0B7nsdNOiyISvdGx4NzhoblV1SlE/view?usp=sharing" rel="nofollow noreferrer">download data</a>), there is a difference between the samples in different columns. The measurements are done for the same time but with different frequency and i have mismatches. I tried to box-plot them as a different groups with the fourth field of the <code>using</code> statement <code>using x:data:width:level</code> and I used the following code:</p>
  
  <pre><code>set style fill solid 0.25 border -1
  set style boxplot outliers pointtype 7
  set style data boxplot
  
  set title 'all_templates' font 'Arial,14';
  set xtics ('1' 1, '2' 2, '3' 3, '4' 4, '5' 5, '6' 6, '7' 7, '8' 8, '9' 9, '10' 10) scale 0,0
  plot for [i=1:10] 'all_template.dat' using (i):i:(1):10 notitle`
  </code></pre>
  
  <p>but the plot looks weird, for example the median of column 9 is around 300ms but in the plot, the box, which represent column 9 does not exceed 200. It seems that the boxplot keeps taking into account the number of bins, although i specified that there are 10 different groups. Any help will be appreciated! 
  <a href="https://i.stack.imgur.com/MyUER.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MyUER.png" alt="enter image description here"></a></p>