Combination of values in pandas data frame
<p>This is my pandas dataframe:</p>

<pre><code>       Item          Support_Count
0      BREAD              4
1      MILK               4
2      DIAPER             4
3      BEER               3
</code></pre>

<p>How will i generate all possible unique combinations of 2 and 3 set of items from the 1st column 'Item'. </p>

<p>Example(2 item sets):
(BREAD,MILK)
,(BREAD,DIAPER),(BREAD,BEER),(MILK,DIAPER) etc.</p>

<p>Example (3 item sets):
(BREAD,MILK,DIAPER),(BREAD,MILK,BEER),(MILK,DIAPER,BEER) etc. </p>