title: how to create a pandas dataframe from a dictionary with column names as keys and values as rows where the values are 2-d array
body: <p>I wanted to know how to create a pandas dataframe from a dictionary.</p>
  <p>So about the dictionary d, the size of values of each key is (200, 200),</p>
  <pre><code>d[key].shape
  (200, 200)
  </code></pre>
  <p>and there are 59 keys all together. What I want is, the keys should be the column names and for every key as column, d[key][0] can be first row of that column, d[key][1] can be the second row and so on. So in each column, each of its row will have a list of 200 as its values and in total 200 rows.</p>
  <p>Can this be done??</p>
  <p>Appreciate your help.</p>