{"id":284,"date":"2014-09-11T22:05:44","date_gmt":"2014-09-11T13:05:44","guid":{"rendered":"https:\/\/www.dogrow.net\/python\/?p=284"},"modified":"2019-10-29T09:09:16","modified_gmt":"2019-10-29T00:09:16","slug":"blog65","status":"publish","type":"post","link":"https:\/\/www.dogrow.net\/python\/blog65\/","title":{"rendered":"(65) numpy\u3067\u5024\u304c\u975e0\u306e\u914d\u5217\u8981\u7d20\u3092\u30ab\u30a6\u30f3\u30c8"},"content":{"rendered":"<p>numpy.<span class=\"my_fc_deeppinkB\">count_nonzero<\/span> \u3067\u5024\u304c\u975e0\u306e\u914d\u5217\u8981\u7d20\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3067\u304d\u308b\u3002<\/p>\n<pre class=\"my_pre_python\">\r\n&gt;&gt;&gt; import numpy as np\r\n&gt;&gt;&gt; a = np.random.rand(10)\r\n&gt;&gt;&gt; a\r\narray([ 0.35002505,  0.54780005,  0.89527122,  0.64347181,  0.51200932,\r\n        0.11512311,  0.73636012,  0.30606429,  0.57073214,  0.06892677])\r\n&gt;&gt;&gt; b = (a &gt; 0.5) * 1\r\n&gt;&gt;&gt; b\r\narray([0, 1, 1, 1, 1, 0, 1, 0, 1, 0])\r\n&gt;&gt;&gt; np.<span class=\"my_fc_deeppinkB\">count_nonzero(b)<\/span>\r\n6\r\n<\/pre>\n<p>\u6761\u4ef6\u691c\u7d22\u3067\u975e0\u306e\u8981\u7d20\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3057\u3001\u305d\u306e\u8981\u7d20\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u65b9\u6cd5\u3067\u3082\u3088\u3044\u3002<\/p>\n<pre class=\"my_pre_python\">\r\n>>> len(np.<span class=\"my_fc_deeppinkB\">where(b!=0)<\/span>[0])\r\n>>> 6\r\n<\/pre>\n<hr class=\"my_hr_bottom\">\n","protected":false},"excerpt":{"rendered":"<p>numpy.count_nonzero \u3067\u5024\u304c\u975e0\u306e\u914d\u5217\u8981\u7d20\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3067\u304d\u308b\u3002 &gt;&gt;&gt; import numpy as np &gt;&gt;&gt; a = np.random.rand(10) &#038;\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.dogrow.net\/python\/blog65\/\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-284","post","type-post","status-publish","format-standard","hentry","category-numpy"],"views":20047,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts\/284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/comments?post=284"}],"version-history":[{"count":9,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts\/284\/revisions"}],"predecessor-version":[{"id":2765,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts\/284\/revisions\/2765"}],"wp:attachment":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/media?parent=284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/categories?post=284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/tags?post=284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}