title: Trouble Creating Dataframe from Arrays
body: <p>I want to create a DataFrame with separate columns for PY and ST, however the DataFrame is created with index values of PY.</p>
  <pre><code>import numpy as np
  import pandas as pd 
  import matplotlib.pyplot as plt 
  
  K = 8000 
  
  ST = np.linspace(7000,9000,num=50)  
  
  PO = 50 
  
  PY = np.maximum(ST-K-PO,0)
  
  pd.DataFrame(PY,ST)
  </code></pre>
  <p>Is there a way to create the DataFrame with default index starting from 0 and 2 columns of PY and ST.</p>