{"id":3956,"date":"2023-07-14T13:05:15","date_gmt":"2023-07-14T13:05:15","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e4%b8%8d%e4%bf%9d%e7%95%99\/"},"modified":"2023-07-14T13:05:15","modified_gmt":"2023-07-14T13:05:15","slug":"%e4%b8%8d%e4%bf%9d%e7%95%99","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e4%b8%8d%e4%bf%9d%e7%95%99\/","title":{"rendered":"\u5982\u4f55\u5728sas\u4e2d\u4f7f\u7528retain\u8bed\u53e5\uff08\u9644\u793a\u4f8b\uff09"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u60a8\u53ef\u4ee5\u4f7f\u7528 SAS \u4e2d\u7684<strong>RETAIN<\/strong>\u8bed\u53e5\u6765\u6307\u5b9a\u4e00\u4e2a\u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u7684\u503c\u4e0d\u5e94\u5728<strong>DATA<\/strong>\u6b65\u9aa4\u7684\u6bcf\u6b21\u8fed\u4ee3\u5f00\u59cb\u65f6\u8bbe\u7f6e\u4e3a\u7f3a\u5931\u3002<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>RETAIN<\/strong>\u8bed\u53e5\u53ef\u7528\u4e8e SAS \u4e2d\u7684\u5404\u79cd\u4efb\u52a1\uff0c\u4f46\u4ee5\u4e0b\u662f\u4e09\u4e2a\u6700\u5e38\u89c1\u7684\u7528\u4f8b\uff1a<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\u60c5\u51b5\u4e00\uff1a\u4f7f\u7528RETAIN\u8ba1\u7b97\u7d2f\u52a0\u548c<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n    <span style=\"color: #3366ff;\">retain<\/span> cum_sum;\n    cum_sum + values_variable;\n<span style=\"color: #800080;\">run<\/span> ;\n<\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\"><strong>\u60c5\u51b52\uff1a\u4f7f\u7528RETAIN\u8ba1\u7b97\u6bcf\u7ec4\u7684\u7d2f\u8ba1\u548c<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n    <span style=\"color: #3366ff;\">by<\/span> grouping_variable\n    <span style=\"color: #3366ff;\">retain<\/span> cum_sum_by_group;\n    <span style=\"color: #3366ff;\">if<\/span> first.grouping_variable <span style=\"color: #3366ff;\">then<\/span> cum_sum_by_group = values_variable;\n    <span style=\"color: #3366ff;\">else<\/span> cum_sum_by_group = cum_sum_by_group + values_variable;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\"><strong>\u6848\u4f8b 3\uff1a\u4f7f\u7528 RETAIN \u8ba1\u7b97\u6bcf\u7ec4\u7684\u7d2f\u79ef\u8ba1\u6570<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n    <span style=\"color: #3366ff;\">by<\/span> grouping_variable\n    <span style=\"color: #3366ff;\">retain<\/span> count_by_group;\n    <span style=\"color: #3366ff;\">if<\/span> first.grouping_variable <span style=\"color: #3366ff;\">then<\/span> count_by_group = <span style=\"color: #008000;\">1<\/span> ;\n    <span style=\"color: #3366ff;\">else<\/span> count_by_group = count_by_group + <span style=\"color: #008000;\">1<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u4f7f\u7528\u6bcf\u4e2a\u6848\u4f8b\u4ee5\u53ca SAS \u4e2d\u7684\u4ee5\u4e0b\u6570\u636e\u96c6\uff0c\u8be5\u6570\u636e\u96c6\u663e\u793a\u4e0d\u540c\u5546\u5e97\u8fde\u7eed\u51e0\u5929\u7684\u9500\u552e\u989d\uff1a<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> original_data;\n    <span style=\"color: #3366ff;\">input<\/span> store $sales;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\nAt 4\nAT 5\nAt 2\nB 6\nB 3\nB5\nC 3\nC 8\nC 6\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> = original_data;<\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31753 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/retenir1.jpg\" alt=\"\" width=\"160\" height=\"275\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b 1\uff1a\u4f7f\u7528 RETAIN \u8ba1\u7b97\u8fd0\u884c\u603b\u548c<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u5982\u4f55\u4f7f\u7528<strong>RETAIN<\/strong>\u8bed\u53e5\u5728\u6570\u636e\u96c6\u4e2d\u521b\u5efa\u4e00\u4e2a\u663e\u793a\u9500\u552e\u989d\u8fd0\u884c\u603b\u548c\u7684\u65b0\u5217\uff1a<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*calculate cumulative sum of sales*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n    <span style=\"color: #3366ff;\">retain<\/span> cum_sales;\n    cum_sales+sales;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view results*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> = new_data;\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31754 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/retenir2.jpg\" alt=\"\" width=\"263\" height=\"295\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><span style=\"color: #000000;\">\u540d\u4e3a<strong>cum_sales<\/strong>\u7684\u65b0\u5217\u5305\u542b<strong>sales<\/strong>\u5217\u4e2d\u503c\u7684\u7d2f\u79ef\u548c\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u4f8b\u5982\uff1a<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">\u7b2c 1 \u884c\u7d2f\u8ba1\u548c\uff1a <strong>4<\/strong><\/span><\/li>\n<li><span style=\"color: #000000;\">\u7b2c 2 \u884c\u7684\u7d2f\u8ba1\u548c\uff1a4 + 5 = <strong>9<\/strong><\/span><\/li>\n<li><span style=\"color: #000000;\">\u7b2c 3 \u884c\u7684\u7d2f\u8ba1\u548c\uff1a4 + 5 + 2 = <strong>11<\/strong><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">\u7b49\u7b49\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c <strong>RETAIN<\/strong>\u8bed\u53e5\u5c06\u540d\u4e3a<strong>cum_sales \u7684<\/strong>\u53d8\u91cf\u8bbe\u7f6e\u4e3a\u96f6\uff0c\u7136\u540e\u5728<strong>DATA<\/strong>\u6b65\u9aa4\u7684\u6bcf\u6b21\u8fed\u4ee3\u4e2d\uff0c\u5b83\u53ea\u662f\u5c06\u65b0\u7684<strong>\u9500\u552e<\/strong>\u503c\u6dfb\u52a0\u5230<strong>cum_sales<\/strong>\u7684\u8fd0\u884c\u603b\u8ba1\u4e2d\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b 2\uff1a\u4f7f\u7528 RETAIN \u8ba1\u7b97\u6bcf\u7ec4\u7684\u7d2f\u79ef\u548c<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u5982\u4f55\u4f7f\u7528<strong>RETAIN<\/strong>\u8bed\u53e5\u5728\u6570\u636e\u96c6\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u5217\uff0c\u7528\u4e8e\u663e\u793a\u5404\u5546\u5e97\u7684\u7d2f\u8ba1\u9500\u552e\u989d\uff1a<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*calculate cumulative sum of sales by store*\/<span style=\"color: #000000;\"><span style=\"color: #800080;\">\ndata<\/span> new_data;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n    <span style=\"color: #3366ff;\">by<\/span> store;\n    <span style=\"color: #3366ff;\">retain<\/span> cum_sales_by_store;\n    <span style=\"color: #3366ff;\">if<\/span> first.store <span style=\"color: #3366ff;\">then<\/span> cum_sales_by_store = sales;\n    <span style=\"color: #3366ff;\">else<\/span> cum_sales_by_store = cum_sales_by_store + sales;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view results*\/\n<span style=\"color: #800080;\">proc print<\/span><\/span> <span style=\"color: #3366ff;\">data<\/span> =new_data;\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31755 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/retenir3.jpg\" alt=\"\" width=\"328\" height=\"292\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><span style=\"color: #000000;\">\u540d\u4e3a<strong>cum_sales_by_store<\/strong>\u7684\u65b0\u5217\u5305\u542b<strong>sales<\/strong>\u5217\u4e2d\u503c\u7684\u7d2f\u79ef\u603b\u548c\uff0c\u6309\u5546\u5e97\u5206\u7ec4\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c <strong>RETAIN<\/strong>\u8bed\u53e5\u5c06\u540d\u4e3a<strong>cum_sales_by_store<\/strong>\u7684\u53d8\u91cf\u8bbe\u7f6e\u4e3a\u96f6\uff0c\u7136\u540e\u5728<strong>DATA<\/strong>\u6b65\u9aa4\u7684\u6bcf\u6b21\u8fed\u4ee3\u4e2d\uff0c\u5b83\u68c0\u67e5 store \u5217\u4e2d\u7684\u503c\u662f\u5426\u662f\u8be5\u7279\u5b9a\u503c\u7684\u7b2c\u4e00\u6b21\u51fa\u73b0\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5982\u679c\u8fd9\u662f\u7b2c\u4e00\u6b21\u51fa\u73b0\uff0c\u5219<strong>cum_sales_by_store<\/strong>\u7684\u503c\u5c06\u8bbe\u7f6e\u4e3a sales \u5217\u4e2d\u7684\u503c\u3002\u5426\u5219\uff0c sales \u5217\u4e2d\u7684\u503c\u5c06\u6dfb\u52a0\u5230<strong>cum_sales_by_store<\/strong>\u7684\u73b0\u6709\u503c\u4e2d\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b 3\uff1a\u4f7f\u7528 RETAIN \u8ba1\u7b97\u6bcf\u7ec4\u7684\u7d2f\u79ef\u8ba1\u6570<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u5982\u4f55\u4f7f\u7528<strong>RETAIN<\/strong>\u8bed\u53e5\u5728\u6570\u636e\u96c6\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u5217\uff0c\u7528\u4e8e\u663e\u793a\u6bcf\u4e2a\u5546\u5e97\u7684\u7d2f\u8ba1\u9500\u552e\u6570\uff1a<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*calculate cumulative count by store*\/<\/span>\ndata<\/span> new_data;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n    <span style=\"color: #3366ff;\">by<\/span> store\n    <span style=\"color: #3366ff;\">retain<\/span> store_count;\n    <span style=\"color: #3366ff;\">if<\/span> first.store <span style=\"color: #3366ff;\">then<\/span> store_count = <span style=\"color: #008000;\">1<\/span> ;\n    <span style=\"color: #3366ff;\">else<\/span> store_count = store_count + <span style=\"color: #008000;\">1<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view results*\/\n<span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> <span style=\"color: #000000;\">= new_data;<\/span><\/span>\n<\/strong><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31756 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/retenir4.jpg\" alt=\"\" width=\"260\" height=\"280\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><span style=\"color: #000000;\">\u540d\u4e3a<strong>store_count<\/strong>\u7684\u65b0\u5217\u5305\u542b\u6bcf\u4e2a\u5546\u5e97\u7684\u7d2f\u79ef\u8ba1\u6570\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c <strong>RETAIN<\/strong>\u8bed\u53e5\u5c06\u540d\u4e3a<strong>store_count<\/strong>\u7684\u53d8\u91cf\u8bbe\u7f6e\u4e3a\u96f6\uff0c\u7136\u540e\u5728<strong>DATA<\/strong>\u6b65\u9aa4\u7684\u6bcf\u6b21\u8fed\u4ee3\u4e2d\uff0c\u5b83\u68c0\u67e5 store \u5217\u4e2d\u7684\u503c\u662f\u5426\u662f\u8be5\u7279\u5b9a\u503c\u7684\u7b2c\u4e00\u6b21\u51fa\u73b0\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5982\u679c\u8fd9\u662f\u7b2c\u4e00\u6b21\u51fa\u73b0\uff0c\u5219<strong>store_count<\/strong>\u7684\u503c\u8bbe\u7f6e\u4e3a 1\u3002\u5426\u5219\uff0c\u5c06\u503c 1 \u6dfb\u52a0\u5230<strong>store_count<\/strong>\u7684\u73b0\u6709\u503c\u4e2d\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u6559\u7a0b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 SAS \u4e2d\u6267\u884c\u5176\u4ed6\u5e38\u89c1\u4efb\u52a1\uff1a<\/span><\/p>\n<p><a href=\"https:\/\/statorials.org\/cn\/\u6bcf\u7ec4sas\u603b\u548c\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728SAS\u4e2d\u8ba1\u7b97\u6bcf\u7ec4\u7684\u603b\u548c<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/\u6bcf\u7ec4\u5e73\u5747\u6c14\u95f8\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728SAS\u4e2d\u8ba1\u7b97\u6bcf\u7ec4\u7684\u5e73\u5747\u503c<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/\u79fb\u52a8\u5e73\u5747\u7ebf\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728 SAS \u4e2d\u8ba1\u7b97\u79fb\u52a8\u5e73\u5747\u503c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 SAS \u4e2d\u7684RETAIN\u8bed\u53e5\u6765\u6307\u5b9a\u4e00\u4e2a\u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u7684\u503c\u4e0d\u5e94\u5728DATA\u6b65\u9aa4\u7684\u6bcf\u6b21\u8fed\u4ee3\u5f00\u59cb\u65f6\u8bbe\u7f6e\u4e3a\u7f3a\u5931 [&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-3956","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u4f55\u5728 SAS \u4e2d\u4f7f\u7528 RETAIN \u8bed\u53e5\uff08\u9644\u793a\u4f8b\uff09-Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u5728 SAS \u4e2d\u4f7f\u7528 RETAIN \u8bed\u53e5\" \/>\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\/cn\/\u4e0d\u4fdd\u7559\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u5728 SAS \u4e2d\u4f7f\u7528 RETAIN \u8bed\u53e5\uff08\u9644\u793a\u4f8b\uff09-Statorials\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u5728 SAS \u4e2d\u4f7f\u7528 RETAIN \u8bed\u53e5\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/cn\/\u4e0d\u4fdd\u7559\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-14T13:05:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/retenir1.jpg\" \/>\n<meta name=\"author\" content=\"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a\" \/>\n<meta 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