title: Histogram of column counts and row counts with NA data
body: <p>I have data in the form:</p>
  
  <pre><code>Input_SNP   Set_1    Set_2     Set_3     Set_4     Set_5     Set_6
  1.09        0.162    NA        2.312     1.876     0.12      0.812
  0.687       NA       0.987     1.32      1.11      1.04      NA
  NA          1.890    0.923     1.43      0.900     2.02      2.7
  2.801       0.642    0.791     0.812     NA        0.31      1.60
  1.33        1.33     NA        1.22      0.23      0.18      1.77
  2.91        1.00     1.651     NA        1.55      3.20      0.99
  2.00        2.31     0.89      1.13      1.25      0.12      1.55
  </code></pre>
  
  <p>I would like to make a histogram plot of the total number of data in each column except for the Input_SNP column. For example, Set_1 has 6, Set_2 has 5, etc. I would also like to make a histogram plot of the total number of data in each except the top row obviously. How can this be done in R? This is a data frame.</p>