https://dailypypy.org/tags/groupby/ Recent content in GroupBy on 每日拍拍 Hugo -- gohugo.io zh-tw © 2026 每日拍拍 Tue, 01 Sep 2026 11:53:00 +0800 155076163427069952 154825760438254592 https://dailypypy.org/learn/pandas-groupby-pivot-report/ Tue, 01 Sep 2026 11:53:00 +0800 https://dailypypy.org/learn/pandas-groupby-pivot-report/ <!--- 1440x768 prompt: masterpiece, best quality, highres, clean anime illustration, japanese anime style, soft shading, flat color design, 1girl, black hair, green eyes, white off-shoulder shirt, black short skirt, side profile, wide shot, full body, walking between three soft translucent blank report panels, hands behind back, pleased analytical smile, looking over shoulder at viewer, pastel seafoam green background, subtle floating blank table cells and rounded chart blocks without symbols or text, neat composition, detailed eyes, cute and smart vibe, minimal background, polished illustration, no text negative prompt: worst quality, bad eye, bad hand, extra limbs, manga, multiple views, monochrome, text, signature ---> <h2 class="relative group">一. 前言：資料很多，不代表報表就有答案 <div id="一-前言資料很多不代表報表就有答案" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700" style="text-decoration-line: none !important;" href="#%e4%b8%80-%e5%89%8d%e8%a8%80%e8%b3%87%e6%96%99%e5%be%88%e5%a4%9a%e4%b8%8d%e4%bb%a3%e8%a1%a8%e5%a0%b1%e8%a1%a8%e5%b0%b1%e6%9c%89%e7%ad%94%e6%a1%88" aria-label="定位點">#</a> </span> </h2> <p>拍拍君每次拿到銷售明細，最常看到的問題不是「怎麼讀 CSV」， 而是讀完之後，大家開始手動複製、貼上、加總，再做一張新的 Excel。</p>