enakai00 https://blog.hatena.ne.jp/enakai00/ めもめも https://enakai00.hatenablog.com/ サンプル In [23]: df = DataFrame(np.arange(20).reshape(5,4), columns=[list('abcd')], index=['one','two','three','four','five']) In [24]: df Out[24]: a b c d one 0 1 2 3 two 4 5 6 7 three 8 9 10 11 four 12 13 14 15 five 16 17 18 19 Dictionary記法、もしくは、Attribute記法でcolumnsを抽出 In [25]: df['a'] Out[25]: one 0 … 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fenakai00.hatenablog.com%2Fentry%2F20150102%2F1420199915" title="pandasのDataFrameからのデータ選択 - めもめも" 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 2015-01-02 20:58:35 rich https://enakai00.hatenablog.com/entry/20150102/1420199915 1.0 100%