title: Round to nearest 1000 in pandas
body: <p>I've searched the pandas documentation and cookbook recipes and it's clear you can round to the nearest decimal place easily using <code>dataframe.columnName.round(decimalplace)</code>. </p>
  
  <p>How do you do this with larger numbers?</p>
  
  <p>Example, I have a column of housing prices and I want them rounded to the nearest 10000 or 1000 or whatever. </p>
  
  <pre><code>df.SalesPrice.WhatDoIDo(1000)? 
  </code></pre>