title: Bar plot in R with multiple columns
body: <p>i want to plot side by side bar plot of below information where i have multiple coloumns.
  I know how to plot for single column ut not getting how to plot for multiple columns.
  Here i also want to change the A with (5.5 -6 ) and B with 6.0-6.5 and so on till F as &gt;8.</p>
  <pre><code>Vendor  A             B          C            D         E            F
  Full    2.164179104 0.447761194 0.179104478 0.059701493 0           0
  RM      2.660428803 1.119464038 0.47877197  0.178534969 0.044064211 0.003246692
  AR      0.2823      0.2614      0.2046      0.1086      0.054       0.0218
  GEM_1   1.179104478 0.298507463 0.164179104 0.059701493 0.014925373 0
  GEM_2   1.626865672 0.388059701 0.179104478 0.059701493 0.014925373 0
  GK      0.835820896 0.268656716 0.149253731 0.059701493 0.014925373 0
  UH      1.119402985 0.358208955 0.164179104 0.059701493 0.014925373 0
  </code></pre>
  <p>Graph which I am expecting is something like below:
  <a href="https://i.stack.imgur.com/fDPVV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fDPVV.png" alt="output of above data" /></a></p>