title: Filtering out values in dataframe columns
body: <p>I've converted an excel sheet into a dataframe, one of the columns states the rise and drop of prices from day 1 to month 2 as a percentage. For example there'll be '-15.4' or a positive percentage like '6.32' (%). </p>
  
  <p>What i want to do is to only include the rows that have a positive value in that column.</p>
  
  <p>This is my import:</p>
  
  <pre><code> import pandas as pd
  
   ipo_data = pd.read_excel(r'C:\Users\ --- \OneDrive --- \ --- \IPO data.xlsx')
  </code></pre>