{"id":1157,"date":"2023-07-27T11:17:42","date_gmt":"2023-07-27T11:17:42","guid":{"rendered":"https:\/\/statorials.org\/ko\/%e1%84%8b%e1%85%a1%e1%86%b7%e1%84%89%e1%85%a5%e1%86%a8-%e1%84%80%e1%85%a9%e1%86%a8%e1%84%89%e1%85%a5%e1%86%ab-ggplot2\/"},"modified":"2023-07-27T11:17:42","modified_gmt":"2023-07-27T11:17:42","slug":"%e1%84%8b%e1%85%a1%e1%86%b7%e1%84%89%e1%85%a5%e1%86%a8-%e1%84%80%e1%85%a9%e1%86%a8%e1%84%89%e1%85%a5%e1%86%ab-ggplot2","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/%e1%84%8b%e1%85%a1%e1%86%b7%e1%84%89%e1%85%a5%e1%86%a8-%e1%84%80%e1%85%a9%e1%86%a8%e1%84%89%e1%85%a5%e1%86%ab-ggplot2\/","title":{"rendered":"Ggplot2\ub97c \uc0ac\uc6a9\ud558\uc5ec roc \uace1\uc120\uc744 \uadf8\ub9ac\ub294 \ubc29\ubc95(\uc608\uc81c \ud3ec\ud568)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u1105\u1169\u110c\u1175\u1109\u1173\u1110\u1175\u11a8-\u1112\u116c\u1100\u1171-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">\ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0\ub294<\/a> \uc751\ub2f5 \ubcc0\uc218\uac00 \uc774\uc9c4\uc77c \ub54c \ud68c\uadc0 \ubaa8\ub378\uc744 \ub9de\ucd94\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \ud1b5\uacc4 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0 \ubaa8\ub378\uc774 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uc5bc\ub9c8\ub098 \uc798 \ub9de\ub294\uc9c0 \ud3c9\uac00\ud558\uae30 \uc704\ud574 \ub2e4\uc74c \ub450 \uac00\uc9c0 \uce21\uc815\ud56d\ubaa9\uc744 \uc0b4\ud3b4\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\ubbfc\uac10\ub3c4:<\/strong> \uacb0\uacfc\uac00 \uc2e4\uc81c\ub85c \uae0d\uc815\uc801\uc77c \ub54c \ubaa8\ub378\uc774 \uad00\ucc30\uc5d0 \ub300\ud55c \uae0d\uc815\uc801\uc778 \uacb0\uacfc\ub97c \uc608\uce21\ud560 \ud655\ub960\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\ud2b9\uc774\uc131:<\/strong> \uacb0\uacfc\uac00 \uc2e4\uc81c\ub85c \ubd80\uc815\uc801\uc77c \ub54c \ubaa8\ub378\uc774 \uad00\ucc30\uc5d0 \ub300\ud574 \ubd80\uc815\uc801\uc778 \uacb0\uacfc\ub97c \uc608\uce21\ud560 \ud655\ub960\uc785\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\uc774 \ub450 \uce21\uc815\ud56d\ubaa9\uc744 \uc2dc\uac01\ud654\ud558\ub294 \uac04\ub2e8\ud55c \ubc29\ubc95\uc740 \ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0 \ubaa8\ub378\uc758 \ubbfc\uac10\ub3c4\uc640 \ud2b9\uc774\uc131\uc744 \ud45c\uc2dc\ud558\ub294 \uadf8\ub798\ud504\uc778 <strong>ROC \uace1\uc120\uc744<\/strong> \ub9cc\ub4dc\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 ggplot2 \uc2dc\uac01\ud654 \ud328\ud0a4\uc9c0\ub97c \uc0ac\uc6a9\ud558\uc5ec R\uc5d0\uc11c ROC \uace1\uc120\uc744 \uc0dd\uc131\ud558\uace0 \ud574\uc11d\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3> <strong>\uc608: ggplot2\ub97c \uc0ac\uc6a9\ud55c ROC \uace1\uc120<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">R\uc5d0 \ub2e4\uc74c\uacfc \uac19\uc740 \ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0 \ubaa8\ub378\uc744 \uc801\ud569\ud558\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load <em>Default<\/em> dataset from ISLR book<\/span>\ndata &lt;- ISLR::Default\n\n<span style=\"color: #008080;\">#divide dataset into training and test set\n<\/span>set.seed(1)\nsample &lt;- sample(c( <span style=\"color: #008000;\">TRUE<\/span> , <span style=\"color: #008000;\">FALSE<\/span> ), <span style=\"color: #3366ff;\">nrow<\/span> (data), <span style=\"color: #3366ff;\">replace<\/span> = <span style=\"color: #008000;\">TRUE<\/span> , <span style=\"color: #3366ff;\">prob<\/span> =c(0.7,0.3))\ntrain &lt;- data[sample, ]\ntest &lt;- data[!sample, ]\n\n<span style=\"color: #008080;\">#fit logistic regression model to training set<\/span>\nmodel &lt;- glm(default~student+balance+income, family=\" <span style=\"color: #008000;\">binomial<\/span> \", data=train)\n\n<span style=\"color: #008080;\">#use model to make predictions on test set<\/span>\npredicted &lt;- predict(model, test, type=\" <span style=\"color: #008000;\">response<\/span> \")\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\ud14c\uc2a4\ud2b8 \uc138\ud2b8\uc5d0\uc11c \ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0 \ubaa8\ub378\uc758 \uc131\ub2a5\uc744 \uc2dc\uac01\ud654\ud558\uae30 \uc704\ud574 <a href=\"https:\/\/www.rdocumentation.org\/packages\/pROC\/versions\/1.16.2\/topics\/ggroc.roc\" target=\"_blank\" rel=\"noopener noreferrer\">pROC \ud328\ud0a4\uc9c0<\/a> \uc758 <strong>ggroc()<\/strong> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec ROC \ud50c\ub86f\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load necessary packages<\/span>\n<span style=\"color: #993300;\">library<\/span> (ggplot2)\n<span style=\"color: #993300;\">library<\/span> (pROC)\n\n<span style=\"color: #008080;\">#define object to plot\n<span style=\"color: #000000;\">rocobj &lt;- roc(test$default, predicted)\n<\/span>\n#create ROC plot\n<span style=\"color: #000000;\">ggroc(rocobj)<\/span><\/span><\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11613 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/rocggplot1.png\" alt=\"ggplot2\uc758 ROC \uace1\uc120\" width=\"445\" height=\"439\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">y\ucd95\uc740 \ubaa8\ub378\uc758 \ubbfc\uac10\ub3c4(\uc9c4\uc591\uc131\ub960)\ub97c \ud45c\uc2dc\ud558\uace0 x\ucd95\uc740 \ubaa8\ub378\uc758 \ud2b9\uc774\uc131(\uc9c4\uc74c\uc131\ub960)\uc744 \ud45c\uc2dc\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ud50c\ub86f\uc5d0 \uc2a4\ud0c0\uc77c\uc744 \ucd94\uac00\ud558\uace0 \ud50c\ub86f\uc758 AUC(\uace1\uc120 \uc544\ub798 \uc601\uc5ed)\ub97c \ud3ec\ud568\ud558\ub294 \uc81c\ubaa9\ub3c4 \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load necessary packages<\/span>\n<span style=\"color: #993300;\">library<\/span> (ggplot2)\n<span style=\"color: #993300;\">library<\/span> (pROC)\n\n<span style=\"color: #008080;\">#define object to plot and calculate AUC\n<\/span>rocobj &lt;- roc(test$default, predicted)\nauc &lt;- <span style=\"color: #3366ff;\">round<\/span> (auc(test$default, predicted), <span style=\"color: #3366ff;\">4<\/span> )\n\n<span style=\"color: #008080;\">#create ROC plot\n<\/span>ggroc(rocobj, color = ' <span style=\"color: #008000;\">steelblue<\/span> ', size = <span style=\"color: #008000;\">2<\/span> ) +\n  ggtitle( <span style=\"color: #3366ff;\">paste0<\/span> (' <span style=\"color: #008000;\">ROC Curve<\/span> ', ' <span style=\"color: #008000;\">(AUC =<\/span> ', auc, ' <span style=\"color: #008000;\">)<\/span> '))<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11614 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/rocggplot2.png\" alt=\"ggplot2\uc758 AUC\ub97c \uc0ac\uc6a9\ud55c ROC \uace1\uc120\" width=\"452\" height=\"450\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\ud50c\ub86f\uc758 \ud14c\ub9c8\ub97c \uc218\uc815\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create ROC plot with minimal theme\n<\/span>ggroc(rocobj, color = ' <span style=\"color: #008000;\">steelblue<\/span> ', size = <span style=\"color: #008000;\">2<\/span> ) +\n  ggtitle( <span style=\"color: #3366ff;\">paste0<\/span> (' <span style=\"color: #008000;\">ROC Curve<\/span> ', ' <span style=\"color: #008000;\">(AUC =<\/span> ', auc, ' <span style=\"color: #008000;\">)<\/span> ')) +\n  theme_minimal()<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11615 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/rocggplot3.png\" alt=\"ggplot2\ub97c \uc0ac\uc6a9\ud558\ub294 R\uc758 ROC \uace1\uc120\" width=\"466\" height=\"466\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\ucd5c\uace0\uc758 ggplot2 \ud14c\ub9c8\uc5d0 \ub300\ud55c \uac00\uc774\ub4dc\ub294 <a href=\"https:\/\/statorials.org\/ko\/\u110e\u116c\u1100\u1169\u110b\u1174-ggplot2-\u1110\u1166\u1106\u1161\/\" target=\"_blank\" rel=\"noopener noreferrer\">\uc774 \ubb38\uc11c\ub97c<\/a> \ucc38\uc870\ud558\uc138\uc694.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0\ub294 \uc751\ub2f5 \ubcc0\uc218\uac00 \uc774\uc9c4\uc77c \ub54c \ud68c\uadc0 \ubaa8\ub378\uc744 \ub9de\ucd94\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \ud1b5\uacc4 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ub85c\uc9c0\uc2a4\ud2f1 \ud68c\uadc0 \ubaa8\ub378\uc774 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uc5bc\ub9c8\ub098 \uc798 \ub9de\ub294\uc9c0 \ud3c9\uac00\ud558\uae30 \uc704\ud574 \ub2e4\uc74c \ub450 \uac00\uc9c0 \uce21\uc815\ud56d\ubaa9\uc744 \uc0b4\ud3b4\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubbfc\uac10\ub3c4: \uacb0\uacfc\uac00 \uc2e4\uc81c\ub85c \uae0d\uc815\uc801\uc77c \ub54c \ubaa8\ub378\uc774 \uad00\ucc30\uc5d0 \ub300\ud55c \uae0d\uc815\uc801\uc778 \uacb0\uacfc\ub97c \uc608\uce21\ud560 \ud655\ub960\uc785\ub2c8\ub2e4. \ud2b9\uc774\uc131: \uacb0\uacfc\uac00 \uc2e4\uc81c\ub85c \ubd80\uc815\uc801\uc77c \ub54c \ubaa8\ub378\uc774 \uad00\ucc30\uc5d0 \ub300\ud574 \ubd80\uc815\uc801\uc778 \uacb0\uacfc\ub97c \uc608\uce21\ud560 \ud655\ub960\uc785\ub2c8\ub2e4. \uc774 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-1157","post","type-post","status-publish","format-standard","hentry","category-20"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ggplot2\ub97c \uc0ac\uc6a9\ud558\uc5ec ROC \uace1\uc120\uc744 \uadf8\ub9ac\ub294 \ubc29\ubc95(\uc608\uc81c \ud3ec\ud568)<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 \uba87 \uac00\uc9c0 \uc608\uc640 \ud568\uaed8 ggplot2\ub97c \uc0ac\uc6a9\ud558\uc5ec R\uc5d0\uc11c ROC \uace1\uc120\uc744 \uadf8\ub9ac\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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