{"id":545954,"date":"2025-02-14T13:04:08","date_gmt":"2025-02-14T12:04:08","guid":{"rendered":"https:\/\/blog.jetbrains.com\/pycharm\/2024\/07\/polars-vs-pandas\/"},"modified":"2025-02-14T13:04:15","modified_gmt":"2025-02-14T12:04:15","slug":"polars-vs-pandas","status":"publish","type":"pycharm","link":"https:\/\/blog.jetbrains.com\/ja\/pycharm\/2025\/02\/polars-vs-pandas\/","title":{"rendered":"Polars vs. pandas \u2013 Python \u306e\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5fb9\u5e95\u6bd4\u8f03"},"content":{"rendered":"<p>Python DataFrame \u306e\u9032\u6b69\u3092\u904e\u53bb 1 \u5e74\u9593\u8ffd\u3044\u7d9a\u3051\u3066\u304d\u305f\u65b9\u306a\u3089\u3001\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u51e6\u7406\u3059\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u305f\u5f37\u529b\u306a DataFrame \u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308b <a href=\"https:\/\/www.pola.rs\/\" target=\"_blank\" rel=\"noopener\">Polars<\/a> \u306e\u540d\u3092\u8033\u306b\u3057\u305f\u3053\u3068\u304c\u3042\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-384206\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/08\/Preview-page-1280x720-2x-1.jpg\" alt=\"\" width=\"2560\" height=\"1440\" \/><\/figure>\n<p align=\"center\"><a class=\"jb-download-button\" href=\"https:\/\/www.jetbrains.com\/ja-jp\/dataspell\/\" target=\"_blank\" rel=\"noopener\"><br \/>DataSpell \u3067 Polars \u3092\u304a\u8a66\u3057\u304f\u3060\u3055\u3044<br \/><\/a><\/p>\n<p><a href=\"https:\/\/spark.apache.org\/\" target=\"_blank\" rel=\"noopener\">Spark<\/a>\u3001<a href=\"https:\/\/www.dask.org\/\" target=\"_blank\" rel=\"noopener\">Dask<\/a>\u3001<a href=\"https:\/\/www.ray.io\/\" target=\"_blank\" rel=\"noopener\">Ray<\/a> \u3068\u3044\u3063\u305f\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u4ed6\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u306f\u7570\u306a\u308a\u3001Polars \u306f\u5358\u4e00\u306e\u30de\u30b7\u30f3\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u60f3\u5b9a\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001<a href=\"https:\/\/pandas.pydata.org\/\" target=\"_blank\" rel=\"noopener\">pandas<\/a> \u3068\u3088\u304f\u6bd4\u8f03\u3055\u308c\u307e\u3059\u3002 \u3057\u304b\u3057\u3001Polars \u306f\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u65b9\u6cd5\u3084\u305d\u306e\u6700\u9069\u306a\u7528\u9014\u306a\u3069\u306e\u591a\u304f\u306e\u91cd\u8981\u306a\u70b9\u3067 pandas \u3068\u306f\u7570\u306a\u3063\u3066\u3044\u307e\u3059\u3002 \u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u308c\u3089 2 \u3064\u306e DataFrame \u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6280\u8853\u7684\u306a\u9055\u3044\u3092\u53d6\u308a\u4e0a\u3052\u306a\u304c\u3089\u3001\u305d\u308c\u305e\u308c\u306e\u5f37\u307f\u3068\u5236\u9650\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u3088\u308a\u8a73\u3057\u3044\u5185\u5bb9\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306b\u63b2\u8f09\u3059\u308b Polars \u306e\u4f5c\u8005\u3067\u3042\u308b <a href=\"https:\/\/github.com\/ritchie46\" target=\"_blank\" rel=\"noopener\">Ritchie Vink<\/a> \u3068\u306e\u30a4\u30f3\u30bf\u30d3\u30e5\u30fc\u3082\u305c\u3072\u3054\u89a7\u304f\u3060\u3055\u3044\uff01<\/p>\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\">\n<div class=\"wp-block-embed__wrapper\"><iframe loading=\"lazy\" title=\"Polars \u3068\u306f\uff1f\" src=\"https:\/\/www.youtube.com\/embed\/QfLzEp-yt_U?feature=oembed\" width=\"500\" height=\"281\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div>\n<\/figure>\n<h2 class=\"wp-block-heading\">pandas \u3067\u306f\u306a\u304f Polars \u3092\u4f7f\u3046\u7406\u7531 \u2013 Python \u30c7\u30fc\u30bf\u5206\u6790\u306e\u8996\u70b9\u304b\u3089<\/h2>\n<p>\u4e00\u8a00\u3067\u8a00\u3048\u3070\u3001\u300c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u300d\u304c\u305d\u306e\u7406\u7531\u3067\u3059\u3002 Polars \u306f\u975e\u5e38\u306b\u9ad8\u901f\u3067\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u30bc\u30ed\u304b\u3089\u69cb\u7bc9\u3055\u308c\u3066\u304a\u308a\u3001\u4e00\u822c\u7684\u306a\u6f14\u7b97\u3092 pandas \u3088\u308a\u3082 5\uff5e10 \u5206\u901f\u304f\u51e6\u7406\u3067\u304d\u307e\u3059\u3002 \u307e\u305f\u3001Polars \u306e\u6f14\u7b97\u306b\u8981\u3059\u308b\u30e1\u30e2\u30ea\u306f pandas \u3088\u308a\u306f\u308b\u304b\u306b\u5c0f\u3055\u304f\u3001\u6f14\u7b97\u306e\u5b9f\u884c\u306b\u5fc5\u8981\u306a RAM \u304c pandas \u3067\u306f\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u30b5\u30a4\u30ba\u306e\u7d04 5\uff5e10 \u500d\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001Polars \u3067\u306f\u7d04 2\uff5e4 \u500d\u3067\u3059\u3002<\/p>\n<p>\u4ed6\u306e DataFrame \u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u6bd4\u8f03\u3057\u305f Polars \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/duckdblabs.github.io\/db-benchmark\/\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 \u3053\u306e\u30ea\u30f3\u30af\u5148\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u3001Polars \u306e\u51e6\u7406\u901f\u5ea6\u306f\u4e00\u822c\u7684\u306a\u6f14\u7b97\u3067 pandas \u306e 10\uff5e100 \u500d\u3067\u3042\u308a\u3001\u5b9f\u306f\u5168\u4f53\u7684\u306a\u51e6\u7406\u901f\u5ea6\u304c\u6700\u3082\u9ad8\u3044 DataFrame \u30e9\u30a4\u30d6\u30e9\u30ea\u306e 1 \u3064\u3067\u3059\u3002 \u3055\u3089\u306b\u3001\u30e1\u30e2\u30ea\u4e0d\u8db3\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u305a\u306b\u51e6\u7406\u3067\u304d\u308b\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u91cf\u3082 pandas \u3088\u308a\u591a\u3044\u3067\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">Polars \u306f\u306a\u305c\u9ad8\u901f\uff1fPython \u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u6700\u9069\u5316\u306e\u79d8\u5bc6<\/h2>\n<p>\u3053\u306e\u3088\u3046\u306a\u7d50\u679c\u306f\u975e\u5e38\u306b\u76ee\u3092\u898b\u5f35\u308b\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u304c\u3001Polars \u304c\u5358\u4e00\u30de\u30b7\u30f3\u3067\u52d5\u4f5c\u3059\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u3053\u308c\u307b\u3069\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5f97\u3089\u308c\u308b\u7406\u7531\u304c\u6c17\u306b\u306a\u308a\u307e\u305b\u3093\u304b\uff1f \u3053\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u6700\u521d\u304b\u3089\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5ff5\u982d\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u3044\u304f\u3064\u304b\u306e\u624b\u6bb5\u306b\u3088\u3063\u3066\u9054\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Rust \u3067\u66f8\u304b\u308c\u3066\u3044\u308b<\/h3>\n<p>Polars \u306b\u3064\u3044\u3066\u6700\u3082\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u306e 1 \u3064\u306b\u3001C \u3084 C++ \u3068\u307b\u307c\u540c\u3058\u901f\u5ea6\u3067\u51e6\u7406\u3055\u308c\u308b\u4e0b\u4f4d\u8a00\u8a9e\u306e <a href=\"https:\/\/www.rust-lang.org\/\" target=\"_blank\" rel=\"noopener\">Rust<\/a> \u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002 \u4e00\u65b9\u306e pandas \u306f Python \u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u57fa\u76e4\u306b\u69cb\u7bc9\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u4e2d\u306b\u306f <a href=\"https:\/\/numpy.org\/\" target=\"_blank\" rel=\"noopener\">NumPy<\/a> \u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002 NumPy \u306e\u30b3\u30a2\u90e8\u5206\u306f C \u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u30ab\u30c6\u30b4\u30ea\u30ab\u30eb\u30c7\u30fc\u30bf\u306e\u6587\u5b57\u5217\u306a\u3069\u306e\u7279\u5b9a\u306e\u578b\u3092 Python \u304c\u30e1\u30e2\u30ea\u5185\u3067\u51e6\u7406\u3059\u308b\u65b9\u6cd5\u306b\u56fa\u6709\u306e\u554f\u984c\u304c\u59a8\u3052\u3068\u306a\u308a\u3001\u305d\u308c\u3089\u306e\u578b\u3092\u51e6\u7406\u3059\u308b\u969b\u306b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3057\u307e\u3059\uff08\u8a73\u7d30\u306f\u3001<a href=\"https:\/\/wesmckinney.com\/\" target=\"_blank\" rel=\"noopener\">Wes McKinney<\/a> \u306b\u3088\u308b<a href=\"https:\/\/wesmckinney.com\/blog\/apache-arrow-pandas-internals\/\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u7d20\u6674\u3089\u3057\u3044\u30d6\u30ed\u30b0\u8a18\u4e8b<\/a> \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\uff09\u3002<\/p>\n<p>Rust \u3092\u4f7f\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u306e 1 \u3064\u306b\u3001\u5b89\u5168\u306a\u4e26\u884c\u6027\u3092\u5b9f\u73fe\u3067\u304d\u308b\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u3067\u304d\u308b\u9650\u308a\u4e26\u5217\u51e6\u7406\u3092\u4e88\u6e2c\u53ef\u80fd\u306a\u3082\u306e\u306b\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002 \u305d\u306e\u305f\u3081\u3001Polars \u306f\u8907\u6570\u306e\u5217\u3092\u6271\u3046\u8907\u96d1\u306a\u30af\u30a8\u30ea\u306b\u3082\u3059\u3079\u3066\u306e\u30de\u30b7\u30f3\u306e\u30b3\u30a2\u3092\u5b89\u5168\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002Ritchie Vink \u304c Polar \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u300c\u56f0\u60d1\u3059\u308b\u307b\u3069\u306e\u4e26\u5217\u6027\u300d\u3068\u8a55\u3057\u3066\u3044\u308b\u306e\u306f\u3053\u306e\u305f\u3081\u3067\u3059\u3002 \u3053\u306e\u4e26\u5217\u6027\u306b\u3088\u308a\u3001Polars \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f 1 \u3064\u306e\u30b3\u30a2\u306e\u307f\u3092\u4f7f\u3063\u3066\u6f14\u7b97\u3092\u5b9f\u884c\u3059\u308b pandas \u3088\u308a\u3082\u5727\u5012\u7684\u306b\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002 \u4eca\u5e74\u306e PyCon DE \u3067\u306e Nico Kreiling \u306b\u3088\u308b<a href=\"https:\/\/www.youtube.com\/watch?v=7xcUvzERwx0&amp;ab_channel=PyData\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u7d20\u6674\u3089\u3057\u3044\u8b1b\u6f14<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002Polars \u304c\u3053\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u3069\u306e\u3088\u3046\u306b\u9054\u6210\u3057\u3066\u3044\u308b\u304b\u304c\u8a73\u3057\u304f\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Arrow \u3092\u30d9\u30fc\u30b9\u3068\u3057\u3066\u3044\u308b<\/h3>\n<p>Polars \u306e\u76ee\u3092\u898b\u5f35\u308b\u3088\u3046\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u306f\u3001\u8a00\u8a9e\u306b\u4f9d\u5b58\u3057\u306a\u3044\u30e1\u30e2\u30ea\u5f62\u5f0f\u3067\u3042\u308b <a href=\"https:\/\/arrow.apache.org\/\" target=\"_blank\" rel=\"noopener\">Apache Arrow<\/a> \u3082\u8ca2\u732e\u3057\u3066\u3044\u307e\u3059\u3002 Arrow \u3082\u5b9f\u306f Wes McKinney \u306b\u3088\u3063\u3066\u4f5c\u6210\u3055\u308c\u305f\u3082\u306e\u3067\u3059\u3002\u305d\u306e\u76ee\u7684\u306f\u3001\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u304c\u7206\u767a\u7684\u306b\u5897\u52a0\u3059\u308b\u306e\u306b\u4f34\u3063\u3066 pandas \u3067\u898b\u3064\u304b\u3063\u305f\u591a\u6570\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3067\u3059\u3002 pandas 2.0 \u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\uff08\u4eca\u5e74 3 \u6708\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u3088\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9ad8\u3044 pandas \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\uff09\u3067\u3082\u3042\u308a\u307e\u3059\u3002 \u305f\u3060\u3057\u3001\u3053\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3068\u306a\u3063\u3066\u3044\u308b Arrow \u306e\u52d5\u4f5c\u306f\u305d\u308c\u3068\u306f\u82e5\u5e72\u7570\u306a\u3063\u3066\u3044\u307e\u3059\u3002pandas 2.0 \u306f PyArrow \u30d9\u30fc\u30b9\u3067\u4f5c\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001Polars \u30c1\u30fc\u30e0\u304c\u5b9f\u88c5\u3057\u305f Arrow \u306f\u72ec\u81ea\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>Arrow \u30d9\u30fc\u30b9\u3067\u30c7\u30fc\u30bf\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u69cb\u7bc9\u3059\u308b\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8\u306e 1 \u3064\u306b\u306f\u3001\u76f8\u4e92\u904b\u7528\u6027\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002 Arrow \u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u5168\u4f53\u3067\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30e2\u30ea\u5185\u30c7\u30fc\u30bf\u306e\u5f62\u5f0f\u3092\u6a19\u6e96\u5316\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001<a href=\"https:\/\/arrow.apache.org\/overview\/\" target=\"_blank\" rel=\"noopener\">\u4ee5\u4e0b<\/a>\u306e\u3088\u3046\u306b\u3001\u3059\u3067\u306b\u591a\u304f\u306e\u91cd\u8981\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-375452\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/07\/arrow.png\" alt=\"\" width=\"574\" height=\"318\" \/><\/figure>\n<\/div>\n<p><a href=\"https:\/\/datapythonista.me\/blog\/pandas-20-and-the-arrow-revolution-part-i\" target=\"_blank\" rel=\"noopener\">\u3053\u306e\u76f8\u4e92\u904b\u7528\u6027<\/a>\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u7570\u306a\u308b\u30b9\u30c6\u30c3\u30d7\u9593\u3067\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u6e21\u3059\u969b\u306b\u30c7\u30fc\u30bf\u3092\u5225\u306e\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u6027\uff08\u30c7\u30fc\u30bf\u306e\u30b7\u30ea\u30a2\u30eb\u5316\u3068\u9006\u30b7\u30ea\u30a2\u30eb\u5316\u306e\u5fc5\u8981\u6027\uff09\u304c\u306a\u304f\u306a\u308b\u305f\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002 \u307e\u305f\u30012 \u3064\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u30b3\u30d4\u30fc\u64cd\u4f5c\u306a\u3057\u3067\u540c\u3058\u30c7\u30fc\u30bf\u3092\u5171\u6709\u3067\u304d\u308b\u305f\u3081\u3001\u30e1\u30e2\u30ea\u306e\u52b9\u7387\u3082\u9ad8\u307e\u308a\u307e\u3059\u3002 \u30b7\u30ea\u30a2\u30eb\u5316\/\u9006\u30b7\u30ea\u30a2\u30eb\u5316\u306f\u3001\u30c7\u30fc\u30bf\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u304a\u3051\u308b<a href=\"https:\/\/arrow.apache.org\/faq\/\" target=\"_blank\" rel=\"noopener\">\u8a08\u7b97\u30b3\u30b9\u30c8\u306e 80\uff5e90% \u3092\u5360\u3081\u308b\u3068\u63a8\u5b9a<\/a>\u3055\u308c\u3066\u304a\u308a\u3001Arrow \u306e\u5171\u901a\u30c7\u30fc\u30bf\u5f62\u5f0f\u306f Polars \u306e\u5927\u5e45\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5f37\u5316\u3092\u3082\u305f\u3089\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001Arrow \u306f pandas \u3088\u308a\u3082\u5e45\u5e83\u3044\u30c7\u30fc\u30bf\u578b\u3092\u7d44\u307f\u8fbc\u307f\u3067\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002 pandas \u306f NumPy \u304c\u30d9\u30fc\u30b9\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u6574\u6570\u3068\u6d6e\u52d5\u5c0f\u6570\u70b9\u306e\u5217\u306e\u51e6\u7406\u306f\u5f97\u610f\u3067\u3059\u304c\u3001\u4ed6\u306e\u30c7\u30fc\u30bf\u578b\u306e\u51e6\u7406\u306f\u82e6\u624b\u3067\u3059\u3002 <a href=\"https:\/\/datapythonista.me\/blog\/pandas-20-and-the-arrow-revolution-part-i\" target=\"_blank\" rel=\"noopener\">\u5bfe\u7167\u7684\u306b<\/a>\u3001Arrow \u306b\u306f\u65e5\u6642\u3001\u30d6\u30fc\u30eb\u5024\u3001\u30d0\u30a4\u30ca\u30ea\u3001\u3055\u3089\u306b\u306f\u30ea\u30b9\u30c8\u3092\u542b\u3080\u8907\u96d1\u306a\u5217\u578b\u306b\u5bfe\u3059\u308b\u9ad8\u5ea6\u306a\u30b5\u30dd\u30fc\u30c8\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002 \u307e\u305f\u3001Arrow \u306f\u6b20\u640d\u30c7\u30fc\u30bf\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u3067\u51e6\u7406\u3067\u304d\u307e\u3059\u304c\u3001NumPy \u3067\u306f\u4ee3\u66ff\u624b\u6bb5\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u4ed8\u3051\u52a0\u3048\u307e\u3059\u304c\u3001Arrow \u306f\u5217\u6307\u5411\u30c7\u30fc\u30bf\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u578b\u3092\u554f\u308f\u305a\u3001\u3059\u3079\u3066\u306e\u5217\u304c\u9023\u7d9a\u3059\u308b\u30e1\u30e2\u30ea\u30d6\u30ed\u30c3\u30af\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002 \u305d\u306e\u305f\u3081\u3001\u4e26\u5217\u6027\u3092\u3088\u308a\u7c21\u5358\u306b\u78ba\u4fdd\u3067\u304d\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30c7\u30fc\u30bf\u691c\u7d22\u304c\u3055\u3089\u306b\u9ad8\u901f\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30af\u30a8\u30ea\u304c\u6700\u9069\u5316\u3055\u308c\u308b<\/h3>\n<p>Polars \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u306e 1 \u3064\u306b\u306f\u3001\u30b3\u30fc\u30c9\u306e\u8a55\u4fa1\u65b9\u6cd5\u3082\u6319\u3052\u3089\u308c\u307e\u3059\u3002 pandas \u306f\u3001\u6f14\u7b97\u3092\u8a18\u8ff0\u9806\u306b\u5b9f\u884c\u3059\u308b<em>\u5373\u6642\uff08Eager\uff09\u5b9f\u884c<\/em>\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u4f7f\u7528\u3057\u307e\u3059\u3002 \u5bfe\u7167\u7684\u306b\u3001Polars \u306f\u5373\u6642\u5b9f\u884c\u3068<em>\u9045\u5ef6\u5b9f\u884c<\/em>\u306e\u4e21\u65b9\u306b\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u5f8c\u8005\u3067\u306f\u30af\u30a8\u30ea\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u30fc\u304c\u3059\u3079\u3066\u306e\u5fc5\u8981\u306a\u6f14\u7b97\u3092\u8a55\u4fa1\u3057\u305f\u5f8c\u306b\u30b3\u30fc\u30c9\u3092\u6700\u3082\u52b9\u7387\u3088\u304f\u5b9f\u884c\u3059\u308b\u65b9\u6cd5\u3092\u8a08\u753b\u3057\u307e\u3059\u3002 \u3053\u306e\u8a08\u753b\u306e\u5bfe\u8c61\u306b\u306f\u3001\u6f14\u7b97\u306e\u5b9f\u884c\u9806\u306e\u66f8\u304d\u63db\u3048\u3084\u5197\u9577\u7684\u306a\u8a08\u7b97\u306e\u524a\u9664\u3068\u3044\u3063\u305f\u3055\u307e\u3056\u307e\u306a\u51e6\u7406\u304c\u3042\u308a\u307e\u3059\u3002 \u305f\u3068\u3048\u3070\u3001<code>Category<\/code> \u5185\u306e\u30ab\u30c6\u30b4\u30ea\u300cA\u300d\u3068\u300cB\u300d\u306e\u305d\u308c\u305e\u308c\u304b\u3089 <code>Number1<\/code> \u5217\u306e\u5e73\u5747\u3092\u53d6\u5f97\u3059\u308b\u4ee5\u4e0b\u306e\u5f0f\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">(\ndf\n.groupby(by = \"Category\").agg(pl.col(\"Number1\").mean())\n.filter(pl.col(\"Category\").is_in([\"A\", \"B\"]))\n)<\/pre>\n<p>\u3053\u306e\u5f0f\u304c\u5373\u6642\u5b9f\u884c\u3055\u308c\u308b\u5834\u5408\u3001DataFrame \u5168\u4f53\u306b\u5bfe\u3057\u3066 <code>groupby<\/code> \u6f14\u7b97\u304c\u4e0d\u5fc5\u8981\u306b\u5b9f\u884c\u3055\u308c\u3001\u305d\u306e\u5f8c\u3067 <code>Category<\/code> \u306b\u3088\u308b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u304c\u884c\u308f\u308c\u307e\u3059\u3002 \u9045\u5ef6\u5b9f\u884c\u306e\u5834\u5408\u306f DataFrame \u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u5f8c\u3001\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u306b\u5bfe\u3057\u3066\u306e\u307f <code>groupby<\/code> \u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">API \u306e\u8868\u73fe\u529b\u304c\u8c4a\u304b\u3067\u3042\u308b<\/h3>\n<p>\u6700\u5f8c\u306b\u4ed8\u3051\u52a0\u3048\u307e\u3059\u304c\u3001Polars \u306b\u306f\u6975\u3081\u3066\u8868\u73fe\u529b\u306b\u512a\u308c\u305f API \u304c\u5099\u308f\u3063\u3066\u304a\u308a\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u306f\u5b9f\u884c\u3057\u305f\u3044\u6f14\u7b97\u3092\u4f55\u3067\u3082 Polars \u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u8868\u73fe\u3067\u304d\u307e\u3059\u3002 \u3057\u304b\u3057\u3001pandas \u3067\u306f\u6bd4\u8f03\u7684\u8907\u96d1\u306a\u6f14\u7b97\u3092\u30e9\u30e0\u30c0\u5f0f\u306e\u5f62\u3067 <code>apply<\/code> \u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u304c\u591a\u3005\u3042\u308a\u307e\u3059\u3002 \u3053\u3053\u3067\u554f\u984c\u3068\u306a\u308b\u306e\u306f\u3001<code>apply<\/code> \u30e1\u30bd\u30c3\u30c9\u304c DataFrame \u306e\u884c\u3092\u30eb\u30fc\u30d7\u3067\u51e6\u7406\u3057\u3001\u5404\u884c\u306b\u5bfe\u3057\u3066\u9806\u306b\u6f14\u7b97\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3059\u3002 \u7d44\u307f\u8fbc\u307f\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3067\u304d\u308b\u3068\u3001\u5217\u30ec\u30d9\u30eb\u3067\u4f5c\u696d\u3057\u3001SIMD \u3068\u547c\u3070\u308c\u308b\u5225\u306e\u5f62\u5f0f\u306e\u4e26\u5217\u51e6\u7406\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">pandas \u304b\u3089\u4e57\u308a\u63db\u3048\u306a\u3044\u7406\u7531<\/h2>\n<p>\u3053\u3093\u306a\u306b\u3082\u7d20\u6674\u3089\u3057\u3044\u3053\u3068\u3070\u304b\u308a\u306a\u3089\u3001pandas \u304b\u3089\u4e57\u308a\u63db\u3048\u306a\u3044\u7406\u7531\u304c\u3042\u308b\u306e\u304b\u3068\u7591\u554f\u306b\u601d\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 \u307e\u3060\u7d50\u8ad6\u3092\u51fa\u3059\u306b\u306f\u65e9\u3044\u3067\u3059\u3088\uff01 Polars \u306f\u6975\u3081\u3066\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u5909\u63db\u51e6\u7406\u304c\u5f97\u610f\u3067\u3059\u304c\u3001\u73fe\u6642\u70b9\u3067\u306f\u30c7\u30fc\u30bf\u63a2\u7d22\u3084\u6a5f\u68b0\u5b66\u7fd2\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306b\u7d44\u307f\u8fbc\u3093\u3067\u4f7f\u7528\u3059\u308b\u306b\u306f\u6700\u9069\u306a\u9078\u629e\u80a2\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u3053\u306e\u3088\u3046\u306a\u5206\u91ce\u3067\u306f\u3001\u4f9d\u7136\u3068\u3057\u3066 pandas \u304c\u6d3b\u8e8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u7406\u7531\u306e 1 \u3064\u306b\u306f\u3001Polars \u306f Arrow \u3092\u4f7f\u7528\u3059\u308b\u4ed6\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u306e\u76f8\u4e92\u904b\u7528\u6027\u306b\u512a\u308c\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u307b\u3068\u3093\u3069\u306e Python \u30c7\u30fc\u30bf\u53ef\u8996\u5316\u30d1\u30c3\u30b1\u30fc\u30b8\u3084\u3001<a href=\"https:\/\/scikit-learn.org\/stable\/\" target=\"_blank\" rel=\"noopener\">scikit-learn<\/a> \u3084 <a href=\"https:\/\/pytorch.org\/\" target=\"_blank\" rel=\"noopener\">PyTorch<\/a> \u306a\u3069\u306e\u6a5f\u68b0\u5b66\u7fd2\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u306f<em>\u307e\u3060<\/em>\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002 Polars DataFrame \u304b\u3089\u30c1\u30e3\u30fc\u30c8\u3092\u76f4\u63a5\u4f5c\u6210\u3067\u304d\u308b <a href=\"https:\/\/plotly.com\/\" target=\"_blank\" rel=\"noopener\">Plotly<\/a> \u306f\u552f\u4e00\u306e\u4f8b\u5916\u3067\u3059\u3002<\/p>\n<p>\u73fe\u5728\u3001\u305d\u306e\u3088\u3046\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u3067 <a href=\"https:\/\/data-apis.org\/dataframe-protocol\/latest\/index.html\" target=\"_blank\" rel=\"noopener\">Python DataFrame \u4ea4\u63db\u30d7\u30ed\u30c8\u30b3\u30eb<\/a>\u3092\u4f7f\u3063\u3066\u5e83\u7bc4\u306a DataFrame \u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3068\u3044\u3046\u89e3\u6c7a\u7b56\u304c\u8b70\u8ad6\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u89e3\u6c7a\u7b56\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30b5\u30a4\u30a8\u30f3\u30b9\u3068\u6a5f\u68b0\u5b66\u7fd2\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u304b\u3089 pandas \u306b\u3088\u308b\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u304c\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u3057\u304b\u3057\u3001\u3053\u308c\u306f\u6bd4\u8f03\u7684\u65b0\u3057\u3044\u30a2\u30a4\u30c7\u30a2\u3067\u3042\u308b\u305f\u3081\u3001\u3053\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u5b9f\u73fe\u3059\u308b\u307e\u3067\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">Polars \u3068 pandas \u306b\u5bfe\u5fdc\u3057\u305f\u30c4\u30fc\u30eb<\/h2>\n<p>\u3053\u3053\u307e\u3067\u304a\u8aad\u307f\u306b\u306a\u3063\u305f\u65b9\u306f\u3001Polars \u3092\u81ea\u5206\u3067\u8a66\u3057\u3066\u307f\u305f\u304f\u306a\u3063\u305f\u306f\u305a\u3067\u3059\uff01 DataSpell \u306b\u3082 <a href=\"https:\/\/www.jetbrains.com\/ja-jp\/pycharm\/\" target=\"_blank\" rel=\"noopener\" data-type=\"link\" data-id=\"https:\/\/www.jetbrains.com\/ja-jp\/pycharm\/download\/?section=mac\">PyCharm Professional<\/a> 2023.2 \u306b\u3082 Jupyter \u30ce\u30fc\u30c8\u30d6\u30c3\u30af\u3067 pandas \u3068 Polars \u306e\u4e21\u65b9\u3092\u6271\u3046\u306e\u306b\u4fbf\u5229\u306a\u30c4\u30fc\u30eb\u4e00\u5f0f\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002 \u5177\u4f53\u7684\u306b\u306f pandas \u3068 Polars DataFrame \u304c\u5bfe\u8a71\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u5f62\u5f0f\u3067\u8868\u793a\u3055\u308c\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u3092\u975e\u5e38\u306b\u8fc5\u901f\u304b\u3064\u5feb\u9069\u306b\u8abf\u67fb\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e2d\u3067\u3082\u79c1\u304c\u6c17\u306b\u5165\u3063\u3066\u3044\u308b\u306e\u306f\u3001DataFrame \u306e\u3059\u3079\u3066\u306e\u884c\u3068\u5217\u3092\u7701\u7565\u306a\u3057\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u8868\u793a\u3067\u304d\u308b\u6a5f\u80fd\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067 DataFrame \u5024\u306e\u96c6\u8a08\u3092\u53d6\u5f97\u3059\u308b\u6a5f\u80fd\u3001Markdown \u3082\u542b\u3080\u591a\u69d8\u306a\u5f62\u5f0f\u3067 DataFrame \u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n<p>\u4eca\u3059\u3050 DataSpell \u3067 Polars \u3092\u4f53\u9a13\u3057\u3088\u3046\uff0130 \u65e5\u9593\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u306f\u3053\u3061\u3089<\/p>\n<p align=\"center\"><a class=\"jb-download-button\" href=\"https:\/\/www.jetbrains.com\/ja-jp\/dataspell\/\" target=\"_blank\" rel=\"noopener\"><br \/>Polars \u3092\u8a66\u3059\u306a\u3089 DataSpell\uff01<br \/><\/a><\/p>\n\n\n<p><strong>\u30aa\u30ea\u30b8\u30ca\u30eb\uff08\u82f1\u8a9e\uff09\u30d6\u30ed\u30b0\u6295\u7a3f\u8a18\u4e8b\u306e\u4f5c\u8005\uff1a<\/strong><\/p>\n\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img decoding=\"async\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2022\/11\/BK7A9876_korr_sRGB_8_1000x1500px_square_resized-200x200.jpg\" width=\"200\" height=\"200\" alt=\"Jodie Burchell\" loading=\"lazy\"  class=\"avatar avatar-200 wp-user-avatar wp-user-avatar-200 photo avatar-default\">\n                <\/div>\n                <div class=\"about-author__box-text\">\n                                            <h4>Jodie Burchell<\/h4>\n                                        <p>Dr. Jodie Burchell is the Developer Advocate in Data Science at JetBrains, and was previously a Lead Data Scientist at Verve Group Europe. She completed a PhD in clinical psychology and a postdoc in biostatistics, before leaving academia for a data science career. She has worked for 7 years as a data scientist in both Australia and Germany, developing a range of products including recommendation systems, analysis platforms, search engine improvements and audience profiling. She has held a broad range of responsibilities in her career, doing everything from data analytics to maintaining machine learning solutions in production. She is a long time content creator in data science, across conference and user group presentations, books, webinars, and posts on both her own and JetBrain&#8217;s blogs.<\/p>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n","protected":false},"author":1394,"featured_media":490611,"comment_status":"closed","ping_status":"closed","template":"","categories":[952],"tags":[566,8152],"cross-post-tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/pycharm\/545954"}],"collection":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/pycharm"}],"about":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/types\/pycharm"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/users\/1394"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/comments?post=545954"}],"version-history":[{"count":9,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/pycharm\/545954\/revisions"}],"predecessor-version":[{"id":545969,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/pycharm\/545954\/revisions\/545969"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/media\/490611"}],"wp:attachment":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/media?parent=545954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/categories?post=545954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/tags?post=545954"},{"taxonomy":"cross-post-tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/cross-post-tag?post=545954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}