{"id":695,"date":"2023-07-29T01:50:03","date_gmt":"2023-07-29T01:50:03","guid":{"rendered":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/"},"modified":"2023-07-29T01:50:03","modified_gmt":"2023-07-29T01:50:03","slug":"kwadratische-regressiecalculator","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/","title":{"rendered":"Kwadratische regressiecalculator"},"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>h1 {\ntext-align: center;\nfont-size: 50px;\nmargin-bottom: 0px;\nfont-family: 'Raleway', serif;\n}<\/p>\n<p>p {\ncolor: black;\nmargin-bottom: 15px;\nmargin-top: 15px;\nfont-family: 'Raleway', sans-serif;\n}<\/p>\n<p>#words {\npadding-left: 30px;\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_summary {\npadding-left: 70px;\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_text {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_text_area {\ndisplay:inline-block;\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;\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>#words_table label, #words_table input {\n    display: inline-block;\n    vertical-align: baseline;\n    width: 350px;\n}<\/p>\n<p>    #buttonCalc {\n      border: 1px solid;\n      border-radius: 10px;\n      margin-top: 20px;<\/p>\n<p>      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>    #buttonCalc:hover {\n      background-color: #f6f6f6;\n      border: 1px solid black;\n    }<\/p>\n<p>\t#words_table {\ncolor: black;\nfont-family: Raleway;\nmax-width: 350px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#summary_table {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\npadding-left: 20px;\n}<\/p>\n<p>\t.label_radio {\n\ttext-align: center;\n    }<\/p>\n<p>td, tr, th {\n    border: 1px solid black;\n}\ntable {\n    border-collapse: collapse;\n}\ntd, th {\n    min-width: 50px;\n    height: 21px;\n}\n    .label_radio {\n\ttext-align: center;\n}<\/p>\n<p>#text_area_input {\n\tpadding-left: 35%;\n\tfloat: left;\n}<\/p>\n<p>svg:not(:root) {\n  overflow: visible;\n}<\/p>\n<\/style>\n<div id=\"words\">\n<p style=\"text-align: left\">Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.<\/p>\n<p style=\"text-align: left\"> Voer eenvoudigweg een lijst met waarden in voor een voorspellende variabele en een responsvariabele in de onderstaande vakken en klik vervolgens op de knop &#8222;Berekenen&#8220;:<\/p>\n<\/div>\n<p style=\"text-align: center\"> <b>Voorspellende waarden:<\/b><\/p>\n<div id=\"words_table\"><textarea id=\"x\" rows=\"5\" cols=\"40\"> 6, 7, 7, 8, 12, 14, 15, 16, 16, 19<\/textarea><\/div>\n<p style=\"text-align: center\"> <b>Reactiewaarden:<\/b><\/p>\n<div id=\"words_table\"><textarea id=\"y\" rows=\"5\" cols=\"40\"> 14, 15, 15, 17, 18, 18, 16, 14, 11, 8 <\/textarea><\/div>\n<div id=\"words_table\"><input type=\"button\" id=\"buttonCalc\" onclick=\"calc()\" value=\"Calculate\"><\/div>\n<div id=\"words_table\">\n<p style=\"text-align: center\"> <b>Kwadratische regressievergelijking:<\/b><\/p>\n<\/div>\n<div id=\"words_table\">\n<p style=\"text-align: center\"> <b>\u0177 = <span id=\"a\">-2,5475<\/span> + ( <span id=\"b\">3,7516<\/span> )x + ( <span id=\"c\">-0,1704<\/span> ) <sup>x2<\/sup><\/b><\/p>\n<\/div>\n<div id=\"words_table\">\n<p style=\"text-align: center\"><span id=\"error_msg\"><\/span><\/p>\n<\/div>\n<p><script><\/p>\n<p>function calc() {<\/p>\n<p>\/\/get input data\nvar x = document.getElementById('x').value.split(',').map(Number);\nvar y = document.getElementById('y').value.split(',').map(Number);<\/p>\n<p>\/\/check that both lists are equal length\nif (x.length - y.length == 0) {\ndocument.getElementById('error_msg').innerHTML = '';<\/p>\n<p>var xbar = math.mean(x);\nvar ybar = math.mean(y);<\/p>\n<p>let xbar2_hold = 0\n\tfor (let i = 0; i < x.length; i++) {\n\t\txbar2_hold += Math.pow(x[i], 2);\n\t}\n\nvar xbar2 = xbar2_hold \/ x.length;\n\nlet sxx = 0\n\tfor (let i = 0; i < x.length; i++) {\n\t\tsxx += Math.pow(x[i] - xbar, 2);\n\t}\n\nlet sxy = 0\n\tfor (let i = 0; i < x.length; i++) {\n\t\tsxy += (x[i] - xbar)*(y[i]-ybar);\n\t}\n\nlet sxx2 = 0\n\tfor (let i = 0; i < x.length; i++) {\n\t\tsxx2 += (x[i] - xbar)*(Math.pow(x[i], 2)-xbar2);\n\t}\n\nlet sx2x2 = 0\n\tfor (let i = 0; i < x.length; i++) {\n\t\tsx2x2 += Math.pow((Math.pow(x[i], 2)-xbar2), 2);\n\t}\n\nlet sx2y = 0\n\tfor (let i = 0; i < x.length; i++) {\n\t\tsx2y += (Math.pow(x[i], 2)-xbar2)*(y[i]-ybar);\n\t}\n\nvar b = ((sxy*sx2x2)-(sx2y*sxx2)) \/ ((sxx*sx2x2)-Math.pow(sxx2, 2));\n\nvar c = ((sx2y*sxx)-(sxy*sxx2)) \/ ((sxx*sx2x2)-Math.pow(sxx2, 2));\n\nvar a = ybar - (b*xbar) - (c*xbar2);\n\ndocument.getElementById('a').innerHTML = a.toFixed(4);\ndocument.getElementById('b').innerHTML = b.toFixed(4);\ndocument.getElementById('c').innerHTML = c.toFixed(4);\n}\n\n\/\/output error message if boths lists are not equal\nelse {\n \/\/document.getElementById('out').innerHTML = '';\n document.getElementById('error_msg').innerHTML = 'The two lists must be of equal length.';\n}\n\t  \n} \/\/end calc function\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele. Voer eenvoudigweg een lijst met waarden in voor een voorspellende variabele en een responsvariabele in de onderstaande vakken en klik vervolgens op de knop &#8222;Berekenen&#8220;: Voorspellende waarden: 6, 7, 7, 8, 12, 14, 15, 16, 16, 19 [&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-695","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>Kwadratische regressiecalculator - Statorials<\/title>\n<meta name=\"description\" content=\"Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.\" \/>\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\/kwadratische-regressiecalculator\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kwadratische regressiecalculator - Statorials\" \/>\n<meta property=\"og:description\" content=\"Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-29T01:50:03+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\/kwadratische-regressiecalculator\/\",\"url\":\"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/\",\"name\":\"Kwadratische regressiecalculator - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/nl\/#website\"},\"datePublished\":\"2023-07-29T01:50:03+00:00\",\"dateModified\":\"2023-07-29T01:50:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\"},\"description\":\"Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Thuis\",\"item\":\"https:\/\/statorials.org\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Kwadratische regressiecalculator\"}]},{\"@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. Ik heb uitgebreide ervaring en expertise op het gebied van statistiek en ik ben vastbesloten om mijn kennis te delen met studenten via Statorials. Lees verder\",\"sameAs\":[\"http:\/\/statorials.org\/nl\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Kwadratische regressiecalculator - Statorials","description":"Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/","og_locale":"de_DE","og_type":"article","og_title":"Kwadratische regressiecalculator - Statorials","og_description":"Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.","og_url":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/","og_site_name":"Statorials","article_published_time":"2023-07-29T01:50:03+00:00","author":"Dr.benjamin anderson","twitter_card":"summary_large_image","twitter_misc":{"Verfasst von":"Dr.benjamin anderson"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/","url":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/","name":"Kwadratische regressiecalculator - Statorials","isPartOf":{"@id":"https:\/\/statorials.org\/nl\/#website"},"datePublished":"2023-07-29T01:50:03+00:00","dateModified":"2023-07-29T01:50:03+00:00","author":{"@id":"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219"},"description":"Deze rekenmachine produceert een kwadratische regressievergelijking op basis van de waarden van een voorspellende variabele en een responsvariabele.","breadcrumb":{"@id":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/nl\/kwadratische-regressiecalculator\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Thuis","item":"https:\/\/statorials.org\/nl\/"},{"@type":"ListItem","position":2,"name":"Kwadratische regressiecalculator"}]},{"@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. Ik heb uitgebreide ervaring en expertise op het gebied van statistiek en ik ben vastbesloten om mijn kennis te delen met studenten via Statorials. Lees verder","sameAs":["http:\/\/statorials.org\/nl"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/posts\/695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/comments?post=695"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/posts\/695\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/media?parent=695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/categories?post=695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/nl\/wp-json\/wp\/v2\/tags?post=695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}