擅长:python、mysql、java
<p>您只需使用<code>.withColumn()</code></p>
<pre><code>df.withColumn('norm_val', (df.val-min)/(max-min))
</code></pre>
<p>这将返回一个列为<code>norm_val</code>的新数据帧。见<code>withColumn</code>文件<a href="https://spark.apache.org/docs/latest/api/python/pyspark.sql.html#pyspark.sql.DataFrame.withColumn" rel="nofollow noreferrer">here</a>。</p>