title: R plotting values from multiple columns in same axis with ggplot
body: <p>I have a data frame wherein marks of a person are stored in multiple columns based on the class like this:</p>
  
  <pre><code>Sno.   Student Name Class1 Class2 Class3 Class4 Class5 Class6 Class7 Class8 
    3    1         XX     75     77     80     77     85     87     89     92    
    4    2         YY     90     90     87     83     80     78     76     75  
  </code></pre>
  
  <p>I would like to plot the all the marks on the x axis and the y axis must be from 1 -100.
  - Thanks Sven Hohenstein
  I was able to get a solution for it.
  But is there another way to solve this problem. your graph is just what I want my output to look like.
  But I do have a 10 row 16 column data frame if i am to melt that it would generate a huge dataframe. 
  If there is way to generate the same plot without melting the data frame it would be much more nicer.</p>
  
  <p>Thank you. </p>