title: Pandas - reindex so I can keep values
body: <p>Long story short</p>
  
  <p>I have a nested dictionary. When I turn it into a dataframe.</p>
  
  <pre><code>import pandas
  pdf = pandas.DataFrame(nested_dict)
  
   95     96     97     98     99    100   101   102   103    104    105  \
  A  70019    102   4243   3083   3540  6311  4851  5938  4140   4659   3100   
  C      0    185    427    433   1190   910  3898  3869  2861   2149   3065   
  D      8      9  23463   1237   2574  4174  3640  4747  3557   4582   5934   
  E    141     89   5034   1576   2303  3416  2377  1252  1204   1703    718   
  F      7     12   1937   2246   1687  1154  1317  3473  1881   2221   3060   
  G    343   1550  13497  10659  12343  8213  9251  7341  6354   9058   9022   
  H      1   1978   1829   1394   1945  1003  1382  1489  4182    932    556   
  I      5    772   1361   3914   3255  3242  2808  3765  3284   2127   3120   
  K      3  10353    540   2364   1196   882  3439  2107   803    743    621   
  L      6     14   1599  11759   4571  4821  3450  5071  4364   1891   3677   
  M      1      6    158    211    524  2738   686   443   612    509   1721   
  N      6    186    299   2971    791  1440  2028  1163  1689   4296   1535   
  P     54     31    726   6208   7160  5494  6184  4282  3587   3727   3821   
  Q     10     87   1228   2233   1016  1801  1768  1693  3414    515    563   
  R      7  53939   3030   8904   6712  6134  5127  3223  4764   3768   6429   
  S     76   5213   3676   7480   9831  7666  5410  8185  7508  11237   8298   
  T   4369   1253   3087   2487   6559  4572  6863  3184  7352   6068   4756   
  V    732      5   7595   4331   5216  5444  5187  6013  4245   4545   4761   
  W      0      6    103   1225    598   888   601   713  1298   1323    908   
  Y     12      9   1968   1085   2787  5489  5529  7840  8691   9745  10136 
  </code></pre>
  
  <p>Eventually I want to melt down this data frame to look like the following.</p>
  
  <pre><code>residue residue_num count
  A       95          70019
  A       96          102
  A       97          4243
  ....
  </code></pre>
  
  <p>The residue column is being marked as the index so I don't know how to make it an arbitrary index like 0,1,2,3 and call "A C D E F.." another name.</p>
  
  <p><strong>EDIT</strong>
  Answered myself as per suggestion</p>