{"id":706,"date":"2023-07-29T00:50:50","date_gmt":"2023-07-29T00:50:50","guid":{"rendered":"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/"},"modified":"2023-07-29T00:50:50","modified_gmt":"2023-07-29T00:50:50","slug":"vorhersageintervallrechner","status":"publish","type":"post","link":"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/","title":{"rendered":"Vorhersageintervallrechner"},"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 label, input {\n    display: inline-block;\n    vertical-align: baseline;\n    width: 350px;\n}<\/p>\n<p>    #button {\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>    #button: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\">Dieser Rechner erstellt ein Vorhersageintervall f\u00fcr einen bestimmten Wert in einer Regressionsanalyse.<\/p>\n<p style=\"text-align: left\"> Geben Sie einfach eine Werteliste f\u00fcr eine Pr\u00e4diktorvariable, eine Antwortvariable, einen einzelnen Wert, f\u00fcr den ein Vorhersageintervall erstellt werden soll, und ein Konfidenzniveau ein und klicken Sie auf die Schaltfl\u00e4che \u201eBerechnen\u201c:<\/p>\n<\/div>\n<p style=\"text-align: center\"> <b>Vorhersagewerte:<\/b><\/p>\n<div id=\"words_table\"><textarea id=\"x\" rows=\"5\" cols=\"40\"> 3, 5, 2, 4, 4, 1, 5, 4, 6, 2, 2, 3, 1, 2, 3<\/textarea><\/div>\n<p style=\"text-align: center\"> <b>Antwortwerte:<\/b><\/p>\n<div id=\"words_table\"><textarea id=\"y\" rows=\"5\" cols=\"40\"> 80, 94, 81, 87, 86, 67, 90, 91, 95, 77, 74, 81, 66, 75, 79<\/textarea><\/div>\n<p style=\"text-align: center\"> <b>X-Wert f\u00fcr Vorhersage:<\/b> <\/p>\n<div id=\"words_table\"><input type=\"number\" id=\"xpred\" value=\"3\"><\/div>\n<p style=\"text-align: center\"><b>Ein Ma\u00df an Selbstvertrauen:<\/b> <\/p>\n<div id=\"words_table\"><input type=\"number\" id=\"CI\" value=\"0.95\" min=\"0\" max=\"1\"><\/div>\n<div id=\"words_table\"><input type=\"button\" id=\"button\" onclick=\"calc()\" value=\"Calculate\"><\/div>\n<div id=\"words_table\">\n<p> <span id=\"CI_out\">90<\/span> %-Vorhersageintervall: <b>( <span id=\"lowCI\">74,643<\/span> , <span id=\"highCI\">86,903<\/span> )<\/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);\nvar xpred = +document.getElementById('xpred').value;\nvar CI = +document.getElementById('CI').value;<\/p>\n<p>\/\/check that both lists are equal length\nif (x.length - y.length == 0) {\ndocument.getElementById('error_msg').innerHTML = '';<\/p>\n<p>function linearRegression(y,x){\n        var lr = {};\n        var n = y.length;\n        var sum_x = 0;\n        var sum_y = 0;\n        var sum_xy = 0;\n        var sum_xx = 0;\n        var sum_yy = 0;<\/p>\n<p>        for (var i = 0; i < y.length; i++) {\n\n            sum_x += x[i];\n            sum_y += y[i];\n            sum_xy += (x[i]*y[i]);\n            sum_xx += (x[i]*x[i]);\n            sum_yy += (y[i]*y[i]);\n        } \n\n        lr['slope'] = (n * sum_xy - sum_x * sum_y) \/ (n*sum_xx - sum_x * sum_x);\n        lr['intercept'] = (sum_y - lr.slope * sum_x)\/n;\n        lr['r2'] = Math.pow((n*sum_xy - sum_x*sum_y)\/Math.sqrt((n*sum_xx-sum_x*sum_x)*(n*sum_yy-sum_y*sum_y)),2);\n        lr['sum_y'] = sum_y;\n        lr['sum_xx'] = sum_xx;\n\n        return lr;\n}\n\n\/\/create regression variables\nvar lr = linearRegression(y, x);\nvar a = lr.slope;\nvar b = lr.intercept;\nvar r2 = lr.r2;\nvar r2p = r2*100;\nvar sxx = lr.sum_xx;\n\n\/\/create sse variable\nvar my = lr.sum_y \/ y.length;\nlet sst = 0;\nfor (let i = 0; i < y.length; i++) {\n       sst += Math.pow((y[i] - my), 2);\n    }\n\nvar CI_out = CI*100\nvar sse = sst - r2*sst;\nvar n = y.length;\nvar var2 = sse\/(n-2);\nvar xbar = math.mean(x);\nvar ypred = b - (-1*a*xpred);\nvar df = n-2;\nvar tcrit = -1*jStat.studentt.inv((1-CI)\/2, df);\n\n\/\/calculate lower and upper bounds of prediction interval\nvar lowCI = ypred-tcrit*Math.sqrt(var2*(1-(-1*(1\/n))-(-1*Math.pow(xpred-xbar,2)\/sxx)));\n\nvar highCI = ypred-(-1*(tcrit*Math.sqrt(var2*(1-(-1*(1\/n))-(-1*Math.pow(xpred-xbar,2)\/sxx)))));\n\n\/\/output results\ndocument.getElementById('lowCI').innerHTML = lowCI.toFixed(3);\ndocument.getElementById('highCI').innerHTML = highCI.toFixed(3);\ndocument.getElementById('CI_out').innerHTML = CI_out.toFixed(0);\n}\n\n\/\/output error message if boths lists are not equal\nelse {\ndocument.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>Dieser Rechner erstellt ein Vorhersageintervall f\u00fcr einen bestimmten Wert in einer Regressionsanalyse. Geben Sie einfach eine Werteliste f\u00fcr eine Pr\u00e4diktorvariable, eine Antwortvariable, einen einzelnen Wert, f\u00fcr den ein Vorhersageintervall erstellt werden soll, und ein Konfidenzniveau ein und klicken Sie auf die Schaltfl\u00e4che \u201eBerechnen\u201c: Vorhersagewerte: 3, 5, 2, 4, 4, 1, 5, 4, 6, 2, 2, [&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>Vorhersageintervallrechner \u2013 Statistik<\/title>\n<meta name=\"description\" content=\"Dieser Rechner erstellt ein Vorhersageintervall f\u00fcr einen bestimmten Wert in einer linearen Regression.\" \/>\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\/de\/vorhersageintervallrechner\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vorhersageintervallrechner \u2013 Statistik\" \/>\n<meta property=\"og:description\" content=\"Dieser Rechner erstellt ein Vorhersageintervall f\u00fcr einen bestimmten Wert in einer linearen Regression.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-29T00:50:50+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\/de\/vorhersageintervallrechner\/\",\"url\":\"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/\",\"name\":\"Vorhersageintervallrechner \u2013 Statistik\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/de\/#website\"},\"datePublished\":\"2023-07-29T00:50:50+00:00\",\"dateModified\":\"2023-07-29T00:50:50+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/de\/#\/schema\/person\/ec75c4d6365f2708f8a0ad3a42121aa0\"},\"description\":\"Dieser Rechner erstellt ein Vorhersageintervall f\u00fcr einen bestimmten Wert in einer linearen Regression.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/#breadcrumb\"},\"inLanguage\":\"de-DE\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/de\/vorhersageintervallrechner\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Heim\",\"item\":\"https:\/\/statorials.org\/de\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Vorhersageintervallrechner\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/de\/#website\",\"url\":\"https:\/\/statorials.org\/de\/\",\"name\":\"Statorials\",\"description\":\"Ihr Leitfaden f\u00fcr statistische Kompetenz !\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/de\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de-DE\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/de\/#\/schema\/person\/ec75c4d6365f2708f8a0ad3a42121aa0\",\"name\":\"Dr. Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de-DE\",\"@id\":\"https:\/\/statorials.org\/de\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/de\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/de\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. Benjamin Anderson\"},\"description\":\"Hallo, ich bin Benjamin, ein pensionierter Statistikprofessor, der sich zum engagierten Statorials-Lehrer entwickelt hat. 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