{"id":2208,"date":"2023-07-23T06:23:05","date_gmt":"2023-07-23T06:23:05","guid":{"rendered":"https:\/\/statorials.org\/id\/numpy-menemukan-indeks-nilai\/"},"modified":"2023-07-23T06:23:05","modified_gmt":"2023-07-23T06:23:05","slug":"numpy-menemukan-indeks-nilai","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/numpy-menemukan-indeks-nilai\/","title":{"rendered":"Cara menemukan indeks nilai di numpy array (dengan contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan metode berikut untuk menemukan posisi indeks nilai tertentu dalam array NumPy:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metode 1: Temukan semua posisi indeks nilai<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>n.p. <span style=\"color: #3366ff;\">where<\/span> (x== <span style=\"color: #008000;\">value<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metode 2: Temukan posisi indeks nilai pertama<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>n.p. <span style=\"color: #3366ff;\">where<\/span> (x== <span style=\"color: #008000;\">value<\/span> )[0][0]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metode 3: Temukan posisi indeks pertama dari beberapa nilai<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define values of interest\n<\/span>vals = np. <span style=\"color: #3366ff;\">array<\/span> ([ <span style=\"color: #008000;\">value1<\/span> , <span style=\"color: #008000;\">value2<\/span> , <span style=\"color: #008000;\">value3<\/span> ])\n\n<span style=\"color: #008080;\">#find index location of first occurrence of each value of interest\n<\/span>exit = np. <span style=\"color: #3366ff;\">argsort<\/span> (x)\ngo out[np. <span style=\"color: #3366ff;\">searchsorted<\/span> (x, vals, sorter=sorter)]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan masing-masing metode dalam praktik.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Metode 1: Temukan semua posisi indeks nilai<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menemukan setiap posisi indeks sama dengan nilai tertentu dalam array NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define array of values<\/span>\nx = np. <span style=\"color: #3366ff;\">array<\/span> ([4, 7, 7, 7, 8, 8, 8])\n\n<span style=\"color: #008080;\">#find all index positions where x is equal to 8<\/span>\nn.p. <span style=\"color: #3366ff;\">where<\/span> (x== <span style=\"color: #008000;\">8<\/span> )\n\n(array([4, 5, 6]),)\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya terlihat bahwa posisi indeks 4, 5 dan 6 semuanya sama dengan nilai <strong>8<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Metode 2: Temukan posisi indeks nilai pertama<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menemukan posisi indeks pertama yang sama dengan nilai tertentu dalam array NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define array of values\n<\/span>x = np. <span style=\"color: #3366ff;\">array<\/span> ([4, 7, 7, 7, 8, 8, 8])\n\n<span style=\"color: #008080;\">#find first index position where x is equal to 8\n<\/span>n.p. <span style=\"color: #3366ff;\">where<\/span> (x== <span style=\"color: #008000;\">8<\/span> )[0][0]\n\n4\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya terlihat bahwa nilai <strong>8<\/strong> pertama kali muncul pada posisi indeks 4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Metode 3: Temukan posisi indeks pertama dari beberapa nilai<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menemukan posisi indeks pertama dari beberapa nilai dalam array NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define array of values\n<\/span>x = np. <span style=\"color: #3366ff;\">array<\/span> ([4, 7, 7, 7, 8, 8, 8])\n\n<span style=\"color: #008080;\">#define values of interest\n<\/span>vals = np. <span style=\"color: #3366ff;\">array<\/span> ([4, 7, 8])\n\n<span style=\"color: #008080;\">#find index location of first occurrence of each value of interest\n<\/span>exit = np. <span style=\"color: #3366ff;\">argsort<\/span> (x)\ngo out[np. <span style=\"color: #3366ff;\">searchsorted<\/span> (x, vals, sorter=sorter)]\n\narray([0, 1, 4])\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya kita dapat melihat:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Nilai <strong>4<\/strong> pertama kali muncul pada posisi indeks 0.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai <strong>7<\/strong> pertama kali muncul pada posisi indeks 1.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai <strong>8<\/strong> pertama kali muncul pada posisi indeks 4.<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara melakukan operasi umum lainnya di NumPy:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/kartu-digital\/\" target=\"_blank\" rel=\"noopener\">Cara memetakan fungsi ke array NumPy<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/array-python-numpy-ke-daftar\/\" target=\"_blank\" rel=\"noopener\">Cara mengonversi array NumPy ke daftar dengan Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/kuantitas-numerik\/\" target=\"_blank\" rel=\"noopener\">Cara menghitung besaran suatu vektor menggunakan NumPy<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan metode berikut untuk menemukan posisi indeks nilai tertentu dalam array NumPy: Metode 1: Temukan semua posisi indeks nilai n.p. where (x== value ) Metode 2: Temukan posisi indeks nilai pertama n.p. where (x== value )[0][0] Metode 3: Temukan posisi indeks pertama dari beberapa nilai #define values of interest vals = np. array [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cara Menemukan Indeks Nilai dalam Array NumPy (dengan Contoh) - Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menemukan lokasi indeks nilai tertentu dalam array NumPy, dengan contoh.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/id\/numpy-menemukan-indeks-nilai\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Menemukan Indeks Nilai dalam Array NumPy (dengan Contoh) - 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