aipacommander https://blog.hatena.ne.jp/aipacommander/ ITの隊長のブログ https://aipacommander.com/ PySpark PySparkで使い方に困ったときのメモ 複数カラムで集計 from pyspark.sql import functions as F a1 = df.groupby('column_1', 'column_2').agg(F.count(F.col('column_3')).alias('count'), F.collect_set('column_4').alias('collect_column_4')) 複数カラムでorderby from pyspark.sql import functions as F a1 = df.select('column_1', 'column_2',… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Faipacommander.com%2Fentry%2F2020%2F01%2F28%2F063624" title="PySparkの雑メモ - ITの隊長のブログ" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2020-01-28 06:36:24 rich https://aipacommander.com/entry/2020/01/28/063624 1.0 100%