{"id":5540,"date":"2023-01-05T13:00:12","date_gmt":"2023-01-05T05:00:12","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5540"},"modified":"2023-01-05T13:00:12","modified_gmt":"2023-01-05T05:00:12","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescript%e4%b8%ad%e7%9a%84%e6%b1%82%e7%a7%bb%e5%8b%95%e6%a8%99%e6%ba%96%e5%b7%aemovingstandarddeviation","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescript%e4%b8%ad%e7%9a%84%e6%b1%82%e7%a7%bb%e5%8b%95%e6%a8%99%e6%ba%96%e5%b7%aemovingstandarddeviation\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528TypeScript\u4e2d\u7684\u6c42\u79fb\u52d5\u6a19\u6e96\u5dee(movingStandardDeviation)"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u9663\u5217, \u6c42\u79fb\u52d5\u6a19\u6e96\u5dee, movingStandardDeviation\"><\/p>\n<h1>TypeScript \u9663\u5217\u7684\u6c42\u79fb\u52d5\u6a19\u6e96\u5dee(movingStandardDeviation)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u958b\u767c\u51fa\u66f4\u9ad8\u54c1\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u5728 TypeScript \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u9663\u5217\u4f86\u8a08\u7b97\u79fb\u52d5\u6a19\u6e96\u5dee\uff08movingStandardDeviation\uff09\u3002<\/p>\n<p>\u79fb\u52d5\u6a19\u6e96\u5dee\u662f\u4e00\u7a2e\u7d71\u8a08\u6280\u8853\uff0c\u7528\u65bc\u8a08\u7b97\u4e00\u7d44\u6578\u64da\u7684\u8b8a\u5316\u7a0b\u5ea6\u3002\u5b83\u53ef\u4ee5\u7528\u4f86\u6e2c\u91cf\u4e00\u7d44\u6578\u64da\u7684\u8b8a\u5316\u7a0b\u5ea6\uff0c\u4ee5\u53ca\u8a55\u4f30\u4e00\u7d44\u6578\u64da\u7684\u6ce2\u52d5\u7a0b\u5ea6\u3002<\/p>\n<p>\u5728 TypeScript \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7a0b\u5f0f\u78bc\u4f86\u8a08\u7b97\u79fb\u52d5\u6a19\u6e96\u5dee\uff1a<\/p>\n<pre class=\"brush: typescript\">\nfunction movingStandardDeviation(arr: number[], windowSize: number): number {\n    let sum = 0;\n    let mean = 0;\n    let variance = 0;\n    let stdDev = 0;\n    let windowStart = 0;\n    let windowEnd = windowSize - 1;\n    let windowSum = 0;\n    let windowMean = 0;\n    let windowVariance = 0;\n    let windowStdDev = 0;\n    let result = 0;\n\n    \/\/ \u8a08\u7b97\u6574\u500b\u9663\u5217\u7684\u7e3d\u548c\n    for (let i = 0; i < arr.length; i++) {\n        sum += arr[i];\n    }\n\n    \/\/ \u8a08\u7b97\u6574\u500b\u9663\u5217\u7684\u5e73\u5747\u503c\n    mean = sum \/ arr.length;\n\n    \/\/ \u8a08\u7b97\u6574\u500b\u9663\u5217\u7684\u8b8a\u7570\u6578\n    for (let i = 0; i < arr.length; i++) {\n        variance += Math.pow(arr[i] - mean, 2);\n    }\n    variance = variance \/ arr.length;\n\n    \/\/ \u8a08\u7b97\u6574\u500b\u9663\u5217\u7684\u6a19\u6e96\u5dee\n    stdDev = Math.sqrt(variance);\n\n    \/\/ \u8a08\u7b97\u79fb\u52d5\u7a97\u53e3\u7684\u7e3d\u548c\n    for (let i = windowStart; i <= windowEnd; i++) {\n        windowSum += arr[i];\n    }\n\n    \/\/ \u8a08\u7b97\u79fb\u52d5\u7a97\u53e3\u7684\u5e73\u5747\u503c\n    windowMean = windowSum \/ windowSize;\n\n    \/\/ \u8a08\u7b97\u79fb\u52d5\u7a97\u53e3\u7684\u8b8a\u7570\u6578\n    for (let i = windowStart; i <= windowEnd; i++) {\n        windowVariance += Math.pow(arr[i] - windowMean, 2);\n    }\n    windowVariance = windowVariance \/ windowSize;\n\n    \/\/ \u8a08\u7b97\u79fb\u52d5\u7a97\u53e3\u7684\u6a19\u6e96\u5dee\n    windowStdDev = Math.sqrt(windowVariance);\n\n    \/\/ \u8a08\u7b97\u79fb\u52d5\u6a19\u6e96\u5dee\n    result = windowStdDev \/ stdDev;\n\n    return result;\n}\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u53ef\u4ee5\u7528\u4f86\u8a08\u7b97\u79fb\u52d5\u6a19\u6e96\u5dee\uff0c\u5b83\u6703\u8a08\u7b97\u4e00\u7d44\u6578\u64da\u7684\u8b8a\u5316\u7a0b\u5ea6\uff0c\u4ee5\u53ca\u8a55\u4f30\u4e00\u7d44\u6578\u64da\u7684\u6ce2\u52d5\u7a0b\u5ea6\u3002<\/p>\n<p>\u79fb\u52d5\u6a19\u6e96\u5dee\u662f\u4e00\u7a2e\u6709\u7528\u7684\u7d71\u8a08\u6280\u8853\uff0c\u53ef\u4ee5\u7528\u4f86\u6e2c\u91cf\u4e00\u7d44\u6578\u64da\u7684\u8b8a\u5316\u7a0b\u5ea6\uff0c\u4ee5\u53ca\u8a55\u4f30\u4e00\u7d44\u6578\u64da\u7684\u6ce2\u52d5\u7a0b\u5ea6\u3002TypeScript \u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u65b9\u6cd5\u4f86\u8a08\u7b97\u79fb\u52d5\u6a19\u6e96\u5dee\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u958b\u767c\u51fa\u66f4\u9ad8\u54c1\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002<\/p>\n<p><!--more--><\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>TypeScript \u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u65b9\u6cd5\u4f86\u8a08\u7b97\u79fb\u52d5\u6a19\u6e96\u5dee\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u958b\u767c\u51fa\u66f4\u9ad8\u54c1\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u79fb\u52d5\u6a19\u6e96\u5dee\u662f\u4e00\u7a2e\u6709\u7528\u7684\u7d71\u8a08\u6280\u8853\uff0c\u53ef\u4ee5\u7528\u4f86\u6e2c\u91cf\u4e00\u7d44\u6578\u64da\u7684\u8b8a\u5316\u7a0b\u5ea6\uff0c\u4ee5\u53ca\u8a55\u4f30\u4e00\u7d44\u6578\u64da\u7684\u6ce2\u52d5\u7a0b\u5ea6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528TypeScript\u4e2d\u7684\u6c42\u79fb\u52d5\u6a19\u6e96\u5dee(movingStandardDeviation)\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u8a08\u7b97\u4e00\u7d44\u6578\u64da\u7684\u79fb\u52d5\u6a19\u6e96\u5dee\uff0c\u4e26\u63d0\u4f9b\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\u4f86\u89e3\u91cb\u5982\u4f55\u4f7f\u7528\u8a72\u51fd\u6578\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[187],"tags":[186],"class_list":["post-5540","post","type-post","status-publish","format-standard","hentry","category-typescript","tag-typescript"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1rm","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=5540"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5540\/revisions"}],"predecessor-version":[{"id":5541,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5540\/revisions\/5541"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}