{"id":28832,"date":"2017-08-08T22:03:04","date_gmt":"2017-08-08T13:03:04","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=28832"},"modified":"2024-05-06T11:44:19","modified_gmt":"2024-05-06T02:44:19","slug":"%e3%80%90python%e5%85%a5%e9%96%80%e3%80%91collections-counter%e3%81%a7%e8%a6%81%e7%b4%a0%e6%95%b0%e3%82%92%e6%95%b0%e3%81%88%e3%82%88%e3%81%86%ef%bc%81","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/28832","title":{"rendered":"\u3010Python\u5165\u9580\u3011Counter\u3067\u6587\u5b57\u5217\u3084\u8981\u7d20\u306e\u6570\u3092\u6570\u3048\u3088\u3046\uff01"},"content":{"rendered":"\n<p>\u4eca\u56de\u306fPython\u306e\u6a19\u6e96\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4e00\u3064\u3067\u3042\u308b<span style=\"color: #339966;\"><strong>collections.Counter<\/strong><\/span>\u306b\u3064\u3044\u3066\u3001\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>collections.Counter\u3092\u4f7f\u3046\u3068\u3001Python\u3067<span style=\"color: #0000ff;\"><strong>\u8981\u7d20\u3092\u6570\u3048\u4e0a\u3052\u308b\u3068\u304d<\/strong><\/span>\u306bfor\u6587\u3092\u56de\u3059\u3088\u308a\u3082\u7dba\u9e97\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\"><strong>\u30fbCounter\u3068\u306f<br>\u30fb\u8f9e\u66f8\u578b\u306e\u8981\u7d20\u306e\u6570\u3048\u4e0a\u3052\u65b9\u6cd5<br>\u30fb\u6587\u5b57\u5217\u306e\u8981\u7d20\u306e\u6570\u3048\u4e0a\u3052\u65b9\u6cd5<br>\u30fb\u6587\u5b57\u5217\u306e\u8981\u7d20\u306e\u6570\u3048\u4e0a\u3052\u65b9\u6cd5<\/strong><\/span><\/p>\n\n\n\n<p>\u3068\u3044\u3063\u305f\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\"><strong>\u30fbmost_common()\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066<\/strong><\/span><\/p>\n\n\n\n<p>\u306a\u3069\u3001\u4e00\u6b69\u9032\u3093\u3060\u5185\u5bb9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><span style=\"background-color: #ffcc00;\"><strong>\u203b \u3053\u306e\u8a18\u4e8b\u306e\u30b3\u30fc\u30c9\u306fPython 3.7, Ubuntu 18.04\u3067\u52d5\u4f5c\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/strong><\/span><\/p>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3092\u8aad\u3080\u524d\u306b\u3001Python\u304c\u3069\u3093\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306a\u306e\u304b\u3092\u304a\u3055\u3089\u3044\u3057\u3066\u304a\u304d\u305f\u3044\u4eba\u306f\u6b21\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u2192&nbsp;<a href=\"https:\/\/www.sejuku.net\/blog\/7720\">Python\u3068\u306f\uff1f\u7279\u5fb4\u3084\u3067\u304d\u308b\u3053\u3068\u3001\u6d3b\u7528\u4f8b\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u7c21\u5358\u306b\u89e3\u8aac<\/a><\/p>\n\n\n\n<p>\u306a\u304a\u3001\u305d\u306e\u4ed6\u306ePython\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/www.sejuku.net\/blog\/147190\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Counter\u3068\u306f<\/h2>\n\n\n\n<p><span style=\"color: #339966;\"><strong>Counter<\/strong><\/span>\u306f\u3001dictionary\uff08\u8f9e\u66f8\uff09\u3084list\uff08\u30ea\u30b9\u30c8\uff09\u306a\u3069\u306e\u8907\u6570\u306e\u8981\u7d20\u3092\u3082\u3064<span style=\"color: #0000ff;\"><strong>\u30b3\u30f3\u30c6\u30ca\u578b\u3068\u547c\u3070\u308c\u308b\u578b\u306e\u6570\u3048\u4e0a\u3052<\/strong><\/span>\u306b\u4f7f\u3046\u3053\u3068\u304c\u51fa\u6765\u308b\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p><a href=\"https:\/\/docs.python.jp\/3\/library\/collections.html\">&nbsp;collections \u2014 \u30b3\u30f3\u30c6\u30ca\u30c7\u30fc\u30bf\u578b\uff1ahttps:\/\/docs.python.jp\/3\/library\/collections.html<\/a><\/p>\n\n\n\n<p>collections\u306e\u4e2d\u306e\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u306e\u3067\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u3068\u304d\u306b\u306f\u3001<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from collections import Counter\n<\/pre>\n\n\n\n<p>\u306e\u3088\u3046\u306b\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u6b21\u9805\u3088\u308aCounter\u306e\u4f7f\u3044\u304b\u305f\u3092\u30d1\u30bf\u30fc\u30f3\u5225\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Counter\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u307e\u305a\u306fCounter\u306e\u57fa\u672c\u7684\u306a\u306a\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from collections import Counter\n\nmylist = [\"apple\",\"banana\",\"apple\",\"apple\",\"orange\"]\nmycounter = Counter(mylist)\nprint(mycounter)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Counter({'apple': 3, 'orange': 1, 'banana': 1})<\/pre>\n\n\n\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306fCounter\u3092\u4f7f\u7528\u3059\u308b\u70ba\u306b\u3001\u307e\u305a<span style=\"color: #0000ff;\"><strong>\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30a4\u30f3\u30dd\u30fc\u30c8<\/strong><\/span>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><span style=\"color: #0000ff;\"><strong>Counter\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210<\/strong><\/span>\u3059\u308b\u306b\u306f\u3001\u5bfe\u8c61\u3068\u3059\u308b\u30b3\u30f3\u30c6\u30ca\u578b\u3092Counter()\u306e\u5f15\u6570\u306b\u6e21\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001mylist\u3068\u3044\u3046\u30ea\u30b9\u30c8\u578b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5f15\u6570\u306b\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>Counter\u306e\u623b\u308a\u5024\u306f\u3001\u5f15\u6570\u306b\u8a2d\u5b9a\u3057\u305f\u30b3\u30f3\u30c6\u30ca\u578b\u306e\u8981\u7d20\u3068\u305d\u306e\u6570\u3092\u683c\u7d0d\u3057\u305f<span style=\"color: #0000ff;\"><strong>\u8f9e\u66f8\u5f62\u306b\u4f3c\u305f\u5f62<\/strong><\/span>\u3067\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b63\u78ba\u306b\u306f\u8f9e\u66f8\u578b\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u308b\u306e\u3067\u3001<span style=\"color: #0000ff;\"><strong>\u8f9e\u66f8\u578b\u3068\u540c\u3058\u6a5f\u80fd\u3092\u6271\u3046<\/strong><\/span>\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\u3092\u898b\u3066\u307f\u308b\u3068\u3001apple\u304ckey\u3067value\uff08\u5024\uff09\u304c3\u3001orange\u3068banana\u306ekey\u306e\u5024\u304c\u305d\u308c\u305e\u308c1\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8f9e\u66f8\u578b\u306e\u8981\u7d20\u3092\u6570\u3048\u308b<\/h3>\n\n\n\n<p>Counter\u3068\u306f\u4f55\u304b\u3092\u5b66\u3093\u3060\u3068\u3053\u308d\u3067\u3001\u5b9f\u969b\u306b\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>Counter\u3092\u4f7f\u3046\u3068<span style=\"color: #0000ff;\"><strong>\u8f9e\u66f8\u578b\u306e\u8981\u7d20\u3092\u6570\u3048\u308b<\/strong><\/span>\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mydict = {\"apple\" : 1, \"banana\" : 4, \"orange\" : 3}\nmycounter = Counter(mydict)\nprint(mycounter)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Counter({'banana': 4, 'orange': 3, 'apple': 1})<\/pre>\n\n\n\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001Counter()\u306e\u5f15\u6570\u3068\u3057\u3066mydict\u3068\u3044\u3046\u8f9e\u66f8\u578b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6e21\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\u306b\u306f\u51fa\u73fe\u56de\u6570\u306e\u9806\u756a\u306b\u4e26\u3073\u66ff\u3048\u3089\u308c\u305f\u8f9e\u66f8\u578b\u306b\u4f3c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6587\u5b57\u5217\u306e\u8981\u7d20\u3092\u6570\u3048\u308b<\/h3>\n\n\n\n<p>Counter\u3092\u4f7f\u3046\u3068<span style=\"color: #0000ff;\"><strong>\u6587\u5b57\u5217\u306e\u6587\u5b57\u306e\u51fa\u73fe\u56de\u6570\u3092\u6570\u3048\u308b<\/strong><\/span>\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">myword = \"helloworld!\"\nmycounter = Counter(myword)\nprint(mycounter)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Counter({'l': 3, 'o': 2, '!': 1, 'e': 1, 'd': 1, 'h': 1, 'r': 1, 'w': 1})<\/pre>\n\n\n\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001\u6587\u5b57\u5217\u300chelloworld!\u300d\u306b\u542b\u307e\u308c\u3066\u3044\u308b<span style=\"color: #0000ff;\"><strong>\u6587\u5b57\u306e\u51fa\u73fe\u56de\u6570<\/strong><\/span>\u3092\u6570\u3048\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>Counter\u306e\u5f15\u6570\u3068\u3057\u3066myword\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u6587\u5b57\u3068\u305d\u306e\u51fa\u73fe\u56de\u6570\u3092\u683c\u7d0d\u3057\u305f<span style=\"color: #0000ff;\"><strong>\u8f9e\u66f8\u578b\u306b\u4f3c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong><\/span>\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u6587\u5b57\u306e\u6570\u3048\u4e0a\u3052\u3060\u3051\u3067\u306f\u306a\u304f<span style=\"color: #0000ff;\"><strong>\u5358\u8a9e\u3082\u6570\u3048\u4e0a\u3052\u308b<\/strong><\/span>\u3053\u3068\u3082\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">phrase = \"my motto is one for all all for one\"\nwords = phrase.split()\nmycounter = Counter(words)\nprint(mycounter)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Counter({'all': 2, 'for': 2, 'one': 2, 'is': 1, 'motto': 1, 'my': 1})<\/pre>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u6587\u5b57\u5217\u578b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308bphrase\u306b\u3001\u30b9\u30da\u30fc\u30b9\u3092\u542b\u3080\u6587\u7ae0\u304c\u4ee3\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u6587\u7ae0\u3092<span style=\"color: #339966;\"><strong>split\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u3092\u4f7f\u3063\u3066\u30b9\u30da\u30fc\u30b9\u3067\u533a\u5207\u308a\u3001<span style=\"color: #0000ff;\"><strong>\u6587\u7ae0\u3092\u5358\u8a9e\u30ea\u30b9\u30c8\u306b\u5909\u63db<\/strong><\/span>\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3057\u3066\u3001\u305d\u306e\u5358\u8a9e\u30ea\u30b9\u30c8\u3067\u3042\u308bwords\u3092Counter\u306e\u5f15\u6570\u3068\u3057\u3066\u6e21\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u3088\u3046\u306b\u3001\u51fa\u529b\u7d50\u679c\u306f\u5358\u8a9e\u3068\u305d\u306e\u51fa\u73fe\u56de\u6570\u3092\u683c\u7d0d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Counter\u306e\u5b9f\u7528\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p>\u3053\u3053\u304b\u3089\u306f<span style=\"color: #339966;\"><strong>most_common()\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u3092\u4f7f\u3063\u3066\u3088\u308a\u5b9f\u7528\u7684\u306aCounter\u306e\u4f7f\u3044\u65b9\u3092\u5b66\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">most_common()\u30e1\u30bd\u30c3\u30c9\u3068\u306f<\/h3>\n\n\n\n<p>most_common()\u30e1\u30bd\u30c3\u30c9\u306f\u3001<span style=\"color: #0000ff;\"><strong>\u51fa\u73fe\u56de\u6570\u304c\u591a\u3044\u8981\u7d20\u9806\u306bCounter\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4e26\u3073\u66ff\u3048<\/strong><\/span>\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u7d50\u679c\u304c\u3088\u308a\u898b\u3084\u3059\u304f\u3001\u6271\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5f15\u6570\u306bint\u578b\u306e\u6570\u5b57n\u3092\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u306f\u3001<span style=\"color: #0000ff;\"><strong>\u51fa\u73fe\u56de\u6570\u304c\u9ad8\u3044\u4e0a\u4f4d\uff4e\u500b\u306e\u8981\u7d20<\/strong><\/span>\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f55\u3082\u8a2d\u5b9a\u3057\u306a\u3051\u308c\u3070\u3001\u30b3\u30f3\u30c6\u30ca\u578b\u306b\u3042\u308b<span style=\"color: #0000ff;\"><strong>\u3059\u3079\u3066\u306e\u8981\u7d20\u3092\u51fa\u73fe\u56de\u6570<\/strong><\/span>\u306e\u9806\u756a\u306b\u4e26\u3073\u66ff\u3048\u305f\u30bf\u30d7\u30eb\u578b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">most_common()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n<p>\u3067\u306f\u3001\u5b9f\u969b\u306bmost_common()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mylist = [\"orange\",\"banana\",\"banana\",\n          \"orange\",\"apple\",\"strawberry\",\n          \"orange\",\"banana\",\"cherry\",\n          \"peach\",\"apple\",\"banana\"]\nmycounter = Counter(mylist)\nfor word in mycounter.most_common():\n    print(word)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">('banana', 4)\n('orange', 3)\n('apple', 2)\n('peach', 1)\n('cherry', 1)\n('strawberry', 1)<\/pre>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001most_common()\u30e1\u30bd\u30c3\u30c9\u306b\u5f15\u6570\u3092\u8a2d\u5b9a\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3059\u308b\u3068\u3001mylist\u306e\u5168\u8981\u7d20\u304c\u51fa\u73fe\u56de\u6570\u306e\u591a\u3044\u9806\u756a\u306b\u4e26\u3073\u66ff\u3048\u3089\u308c\u305f\u30bf\u30d7\u30eb\u3068\u3057\u3066\u8fd4\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u3001most_common()\u30e1\u30bd\u30c3\u30c9\u306b\u5f15\u6570\u3092\u6e21\u3059\u3068\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mylist = [\"orange\",\"banana\",\"banana\",\n          \"orange\",\"apple\",\"strawberry\",\n          \"orange\",\"banana\",\"cherry\",\n          \"peach\",\"apple\",\"banana\"]\nmycounter = Counter(mylist)\nfor word in mycounter.most_common(3):\n    print(word)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">('banana', 4)\n('orange', 3)\n('apple', 2)<\/pre>\n\n\n\n<p>\u5f15\u6570\u3068\u3057\u30663\u3068\u8a2d\u5b9a\u3057\u305f\u306e\u3067\u3001\u3082\u3063\u3068\u3082<span style=\"color: #0000ff;\"><strong>\u51fa\u73fe\u56de\u6570\u304c\u591a\u3044\u4e0a\u4f4d3\u5358\u8a9e\u304c\u8868\u793a<\/strong><\/span>\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>most_common()\u30e1\u30bd\u30c3\u30c9\u306f\u30bf\u30d7\u30eb\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><span style=\"color: #339966;\"><strong>\u30bf\u30d7\u30eb<\/strong><\/span>\u306f\u30ea\u30b9\u30c8\u306b\u3082\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001<span style=\"color: #0000ff;\"><strong>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb<\/strong><\/span>\uff08\u5909\u66f4\u304c\u51fa\u6765\u306a\u3044\uff09\u306a\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3082\u3057\u4e2d\u8eab\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u3001<span style=\"color: #339966;\"><strong>list()\u95a2\u6570<\/strong><\/span>\u3067\u30ea\u30b9\u30c8\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">tp_banana = ('banana', 4)\nls_banana = list(tp_banana)\nprint(ls_banana)<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">['banana', 4]<\/pre>\n\n\n\n<p><span style=\"color: #0000ff;\"><strong>\u30bf\u30d7\u30eb\u304c\u30ea\u30b9\u30c8\u306b\u5909\u63db<\/strong><\/span>\u3055\u308c\u307e\u3057\u305f\u306d\u3002<\/p>\n\n\n\n<p>\u30bf\u30d7\u30eb\u306b\u3064\u3044\u3066\u306e\u8a73\u3057\u3044\u89e3\u8aac\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/23964\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/python_tuple-150x85.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Python tuple\u3011\u30bf\u30d7\u30eb\u306e\u4f7f\u3044\u65b9\u3084\u30ea\u30b9\u30c8\u3068\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u89e3\u8aac<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h2 class=\"wp-block-heading\">Python\u306e\u6587\u5b57\u5217<\/h2>\n\n\n\n<p>Python\u306f\u6587\u5b57\u5217\u3092\u4f7f\u7528\u3057\u3066\u3055\u307e\u3056\u307e\u306a\u64cd\u4f5c\u3092\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6587\u5b57\u5217\u306e\u6271\u3044\u306e\u57fa\u672c\u306b\u3064\u3044\u3066\u304a\u3055\u3089\u3044\u3057\u3066\u304a\u304d\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3082\u5408\u308f\u305b\u3066\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<br>            <a href=\"https:\/\/www.sejuku.net\/blog\/28147\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/python_str-150x85.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">Python\u306e\u6587\u5b57\u5217\u306e\u4f7f\u3044\u65b9\u3068\u306f\uff1f\u57fa\u672c\u3092\u89e3\u8aac\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u4eca\u56de\u306f\u3001collections.Counter\u306e\u57fa\u672c\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>Counter\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u306a\u308b\u3068<span style=\"color: #0000ff;\"><strong>\u30b3\u30fc\u30c9\u3092\u5927\u5e45\u306b\u7701\u7565<\/strong><\/span>\u3057\u3066\u8aad\u307f\u3084\u3059\u304f\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>Python\u3067\u30b3\u30f3\u30c6\u30ca\u578b\u306e<span style=\"color: #0000ff;\"><strong>\u8981\u7d20\u306e\u51fa\u73fe\u56de\u6570\u306a\u3069\u3092\u6570\u3048\u4e0a\u3052\u308b<\/strong><\/span>\u4e8b\u306f\u6bd4\u8f03\u7684\u3088\u304f\u3042\u308b\u3053\u3068\u306a\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u3044\u3066\u640d\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>collections.Counter\u3092\u4f7f\u3063\u3066\u3001\u30c7\u30fc\u30bf\u3092\u7dba\u9e97\u306b\u6271\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306fPython\u306e\u6a19\u6e96\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4e00\u3064\u3067\u3042\u308bcollections.Counter\u306b\u3064\u3044\u3066\u3001\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 collections.Counter\u3092\u4f7f\u3046\u3068\u3001Python\u3067\u8981\u7d20\u3092\u6570\u3048\u4e0a\u3052\u308b\u3068\u304d\u306bfor\u6587\u3092\u56de [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":33171,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2350],"tags":[49],"class_list":["post-28832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-study","tag-python"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u3010Python\u5165\u9580\u3011Counter\u3067\u6587\u5b57\u5217\u3084\u8981\u7d20\u306e\u6570\u3092\u6570\u3048\u3088\u3046\uff01 | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Python\u5165\u9580\u3011Counter\u3067\u6587\u5b57\u5217\u3084\u8981\u7d20\u306e\u6570\u3092\u6570\u3048\u3088\u3046\uff01 \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/28832\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Python\u5165\u9580\u3011Counter\u3067\u6587\u5b57\u5217\u3084\u8981\u7d20\u306e\u6570\u3092\u6570\u3048\u3088\u3046\uff01 | 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