{"id":500,"date":"2023-07-29T17:03:04","date_gmt":"2023-07-29T17:03:04","guid":{"rendered":"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/"},"modified":"2023-07-29T17:03:04","modified_gmt":"2023-07-29T17:03:04","slug":"relatieve-frequentiecalculator","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/","title":{"rendered":"Relatieve frequentiecalculator"},"content":{"rendered":"<p><script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/mathjs\/5.1.1\/math.js\"><\/script><script src=\"https:\/\/cdn.jsdelivr.net\/npm\/jstat@latest\/dist\/jstat.min.js\"><\/script><\/p>\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css?family=Droid+Serif|Raleway');<\/p>\n<p>.axis--y .domain {\n  display: none;\n}<\/p>\n<p>h1 {\ncolor: black;\ntext-align: center;\nmargin-top: 15px;\nmargin-bottom: 0px;\nfont-family: 'Raleway', sans-serif;\n}<\/p>\n<p>h2 {\ncolor: black;\nfont-size: 20px;\ntext-align: center;\nmargin-bottom: 15px;\nmargin-top: 15px;\nfont-family: 'Raleway', sans-serif;\n}<\/p>\n<p>p {\ncolor: black;\ntext-align: center;\nmargin-bottom: 15px;\nmargin-top: 15px;\nfont-family: 'Raleway', sans-serif;\n}<\/p>\n<p>#words_intro {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_outro {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\npadding-left: 100px;\n}<\/p>\n<p>#calcTitle {\ntext-align: center;\nfont-size: 20px;\nmargin-bottom: 0px;\nfont-family: 'Raleway', serif;\n}<\/p>\n<p>#hr_top {\nwidth: 30%;\nmargin-bottom: 0px;\nmargin-top: 10px;\nborder: none;\nheight: 2px;\ncolor: black;\nbackground-color: black;\n}<\/p>\n<p>#hr_bottom {\nwidth: 30%;\nmargin-top: 15px;\nborder: none;\nheight: 2px;\ncolor: black;\nbackground-color: black;\n}<\/p>\n<p>.input_label_calc {\n    display: inline-block;\n    vertical-align: baseline;\n    width: 350px;\n}<\/p>\n<p>    #button_calc {\n      border: 1px solid;\n      border-radius: 10px;\n      margin-top: 20px;\n      padding: 10px 10px;\n      cursor: pointer;\n      outline: none;\n      background-color: white;\n      color: black;\n      font-family: 'Work Sans', sans-serif;\n      border: 1px solid grey;\n      \/* Green *\/\n    }<\/p>\n<p>    #button_calc:hover {\n      background-color: #f6f6f6;\n      border: 1px solid black;\n    }<\/p>\n<p>\t    .label_radio {\n\ttext-align: center;\n}<\/p>\n<p>\t#words_table {\ncolor: black;\nfont-family: Raleway;\nmax-width: 350px;\nmargin: 25px auto;\nline-height: 1.75;\n}\n<\/style>\n<div id=\"words_intro\">Een <b>frequentietabel<\/b> is een tabel die laat zien hoe vaak bepaalde waarden in een dataset voorkomen.<\/div>\n<div id=\"words_intro\"> Een <b>relatieve frequentietabel<\/b> is een tabel die laat zien hoe vaak bepaalde waarden voorkomen ten opzichte van alle waarnemingen in een dataset.<\/div>\n<div id=\"words_intro\"> Om een relatieve frequentietabel voor een bepaalde dataset te maken, voert u eenvoudigweg de waarden in, gescheiden door komma&#8217;s, in het onderstaande vak en klikt u vervolgens op de knop &#8222;Berekenen&#8220;.<\/div>\n<div id=\"words_table\"><textarea id=\"input_data\" name=\"x\" rows=\"5\" cols=\"40\"> 4, 14, 16, 22, 24, 25, 37, 38, 38, 40, 41, 41, 43, 44 <\/textarea><\/div>\n<div id=\"words\"><input class=\"input_label_calc\" type=\"button\" id=\"button_calc\" onclick=\"calc()\" value=\"Calculate\"><\/div>\n<div id=\"words_intro\">\n<div id=\"table_output\"><\/div>\n<\/div>\n<div class=\"content_hint\"><\/div>\n<p><script><\/p>\n<p>function calc() {<\/p>\n<p>\/\/remove current table if one exists\nvar element = document.getElementsByTagName('table')[0];\n    if(element) {element.parentNode.removeChild(element)}<\/p>\n<p>\/\/get input values\nvar input_data = document.getElementById('input_data').value.split(',').map(Number);<\/p>\n<p>\/\/calculate stuff\nvar occurrence = function (array) {\n    \"use strict\";\n    var result = {};\n    if (array instanceof Array) { \/\/ Check if input is array.\n        array.forEach(function (v, i) {\n            if (!result[v]) { \/\/ Initial object property creation.\n                result[v] = [i]; \/\/ Create an array for that property.\n            } else { \/\/ Same occurrences found.\n                result[v].push(i); \/\/ Fill the array.\n            }\n        });\n    }\n    return result;\n};\nvar size = Object.keys(occurrence(input_data)).length;<\/p>\n<p>\/\/create array of relative and cumulative values\nvar relFreqArray = [];\nfor (var i = 0; i < size; i++){\n    relFreqArray[i] = (occurrence(input_data)[Object.keys(occurrence(input_data))[i]].length \/ input_data.length)\n}\n\nfor (var cumsum = [relFreqArray[0]], i = 0, l = relFreqArray.length-1; i<l; i++) {\n    cumsum[i+1] = cumsum[i] + relFreqArray[i+1]; \n}\n\n\/\/generate table of frequencies\nvar table = document.createElement('table');\n    function boldHTML(text) {\n  var element = document.createElement(\"b\");\n  element.innerHTML = text;\n  return element;\n}\n    var tr = document.createElement('tr');   \n\n    var td1 = document.createElement('td');\n    var td2 = document.createElement('td');\n    var td3 = document.createElement('td');\n    var td4 = document.createElement('td');\n\n    td1.appendChild(boldHTML('Value'));\n    td2.appendChild(boldHTML('Frequency'));\n    td3.appendChild(boldHTML('Relative Frequency'));\n    td4.appendChild(boldHTML('Cumulative Relative Frequency'));\n\n    tr.appendChild(td1);\n    tr.appendChild(td2);\n    tr.appendChild(td3);\n    tr.appendChild(td4);\n\n    table.appendChild(tr);\nfor (var i = 0; i < size; i++){\n    var tr = document.createElement('tr');   \n\n    var td1 = document.createElement('td');\n    var td2 = document.createElement('td');\n    var td3 = document.createElement('td');\n    var td4 = document.createElement('td');\n\n    var text1 = document.createTextNode(Object.keys(occurrence(input_data))[i]);\n    var text2 = document.createTextNode(occurrence(input_data)[Object.keys(occurrence(input_data))[i]].length);\n    var text3 = document.createTextNode(relFreqArray[i].toFixed(4));\n    var text4 = document.createTextNode(cumsum[i].toFixed(4));\n\n    td1.appendChild(text1);\n    td2.appendChild(text2);\n    td3.appendChild(text3);\n    td4.appendChild(text4);\n\n    tr.appendChild(td1);\n    tr.appendChild(td2);\n    tr.appendChild(td3);\n    tr.appendChild(td4);\n\n    table.appendChild(tr);\n}\ndocument.getElementById('table_output').appendChild(table);\n\n\/\/output results\n\/\/document.getElementById('ss').innerHTML = ss.toFixed(2);\n}\n\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Een frequentietabel is een tabel die laat zien hoe vaak bepaalde waarden in een dataset voorkomen. Een relatieve frequentietabel is een tabel die laat zien hoe vaak bepaalde waarden voorkomen ten opzichte van alle waarnemingen in een dataset. Om een relatieve frequentietabel voor een bepaalde dataset te maken, voert u eenvoudigweg de waarden in, gescheiden [&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":[],"class_list":["post-500","post","type-post","status-publish","format-standard","hentry","category-gids"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Relatieve frequentiecalculator - Statorials<\/title>\n<meta name=\"description\" content=\"Deze rekenmachine vindt de relatieve frequentie van elke waarde in een bepaalde gegevensset, evenals de cumulatieve relatieve frequentie.\" \/>\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\/nl\/relatieve-frequentiecalculator\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Relatieve frequentiecalculator - Statorials\" \/>\n<meta property=\"og:description\" content=\"Deze rekenmachine vindt de relatieve frequentie van elke waarde in een bepaalde gegevensset, evenals de cumulatieve relatieve frequentie.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-29T17:03:04+00:00\" \/>\n<meta name=\"author\" content=\"Dr.benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr.benjamin anderson\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/\",\"url\":\"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/\",\"name\":\"Relatieve frequentiecalculator - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/nl\/#website\"},\"datePublished\":\"2023-07-29T17:03:04+00:00\",\"dateModified\":\"2023-07-29T17:03:04+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\"},\"description\":\"Deze rekenmachine vindt de relatieve frequentie van elke waarde in een bepaalde gegevensset, evenals de cumulatieve relatieve frequentie.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/nl\/relatieve-frequentiecalculator\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Thuis\",\"item\":\"https:\/\/statorials.org\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Relatieve frequentiecalculator\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/nl\/#website\",\"url\":\"https:\/\/statorials.org\/nl\/\",\"name\":\"Statorials\",\"description\":\"Uw gids voor statistische competentie\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/nl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\",\"name\":\"Dr.benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/nl\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/nl\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr.benjamin anderson\"},\"description\":\"Ik ben Benjamin, een gepensioneerde hoogleraar statistiek die nu een toegewijde Statorials-lesgever is. 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