{"id":1208,"date":"2023-07-27T06:58:14","date_gmt":"2023-07-27T06:58:14","guid":{"rendered":"https:\/\/statorials.org\/ko\/r%e1%84%8b%e1%85%b4-%e1%84%87%e1%85%ae%e1%84%87%e1%85%ae%e1%86%ab-%e1%84%8e%e1%85%ac%e1%84%89%e1%85%a9-%e1%84%8c%e1%85%a6%e1%84%80%e1%85%a9%e1%86%b8\/"},"modified":"2023-07-27T06:58:14","modified_gmt":"2023-07-27T06:58:14","slug":"r%e1%84%8b%e1%85%b4-%e1%84%87%e1%85%ae%e1%84%87%e1%85%ae%e1%86%ab-%e1%84%8e%e1%85%ac%e1%84%89%e1%85%a9-%e1%84%8c%e1%85%a6%e1%84%80%e1%85%a9%e1%86%b8","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/r%e1%84%8b%e1%85%b4-%e1%84%87%e1%85%ae%e1%84%87%e1%85%ae%e1%86%ab-%e1%84%8e%e1%85%ac%e1%84%89%e1%85%a9-%e1%84%8c%e1%85%a6%e1%84%80%e1%85%a9%e1%86%b8\/","title":{"rendered":"R\uc758 \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1(\ub2e8\uacc4\ubcc4)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\uae30\uacc4 \ud559\uc2b5\uc5d0\uc11c \uc9c1\uba74\ud558\uac8c \ub418\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubb38\uc81c \uc911 \ud558\ub098\ub294 <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1161\u110c\u116e\u11bc\u1100\u1169\u11bc\u1109\u1165\u11ab\u1109\u1165\u11bc-\u1112\u116c\u1100\u1171\/\" target=\"_blank\" rel=\"noopener noreferrer\">\ub2e4\uc911 \uacf5\uc120\uc131<\/a> \uc785\ub2c8\ub2e4. \uc774\ub294 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0\uc11c \ub450 \uac1c \uc774\uc0c1\uc758 \uc608\uce21 \ubcc0\uc218\uac00 \ub192\uc740 \uc0c1\uad00 \uad00\uacc4\ub97c \uac00\uc9c8 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub7f0 \uc77c\uc774 \ubc1c\uc0dd\ud558\uba74 \ubaa8\ub378\uc740 \ud6c8\ub828 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uc798 \ub9de\uc744 \uc218 \uc788\uc9c0\ub9cc, \ud6c8\ub828 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uacfc\uc801\ud569\ub418\uae30 \ub54c\ubb38\uc5d0 \ubcf8 \uc801\uc774 \uc5c6\ub294 \uc0c8\ub85c\uc6b4 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0\uc11c\ub294 \uc131\ub2a5\uc774 <a href=\"https:\/\/statorials.org\/ko\/\u1106\u1165\u1109\u1175\u11ab\u1105\u1165\u1102\u1175\u11bc-\u1100\u116a\u110c\u1165\u11a8\u1112\u1161\u11b8\/\" target=\"_blank\" rel=\"noopener noreferrer\">\uc800\ud558<\/a> \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b8\ub808\uc774\ub2dd \uc138\ud2b8.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ud55c \uac00\uc9c0 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uc791\ub3d9\ud558\ub294 <a href=\"https:\/\/statorials.org\/ko\/\u1107\u116e\u1107\u116e\u11ab-\u110e\u116c\u1109\u1169-\u110c\u1166\u1100\u1169\u11b8\/\" target=\"_blank\" rel=\"noopener noreferrer\">\ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1<\/a> \ubc95\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\uc608\uce21 \ubcc0\uc218\uc640 \ubc18\uc751 \ubcc0\uc218\ub97c \ud45c\uc900\ud654\ud569\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\ubc18\uc751 \ubcc0\uc218\uc640 \uc608\uce21 \ubcc0\uc218 \ubaa8\ub450\uc5d0\uc11c \uc0c1\ub2f9\ud55c \uc591\uc758 \ubcc0\ub3d9\uc744 \uc124\uba85\ud558\ub294<\/span> <em style=\"color: #000000;\">p\uac1c\uc758<\/em> \uc6d0\ub798 \uc608\uce21 \ubcc0\uc218 <span style=\"color: #000000;\">\uc758 <em>M\uac1c\uc758<\/em> \uc120\ud615 \uc870\ud569(&#8220;PLS \uad6c\uc131 \uc694\uc18c&#8221;\ub77c\uace0 \ud568)\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4<\/span> .<\/li>\n<li> <span style=\"color: #000000;\">PLS \uad6c\uc131\uc694\uc18c\ub97c \uc608\uce21 \ubcc0\uc218\ub85c \uc0ac\uc6a9\ud558\uc5ec \uc120\ud615 \ud68c\uadc0 \ubaa8\ub378\uc744 \ub9de\ucd94\ub824\uba74 \ucd5c\uc18c \uc81c\uacf1\ubc95\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/span><\/li>\n<li> <a href=\"https:\/\/statorials.org\/ko\/k-\u1100\u1167\u11b8-\u1100\u116d\u110e\u1161-\u1100\u1165\u11b7\u110c\u1173\u11bc\/\" target=\"_blank\" rel=\"noopener noreferrer\">k-\uacb9 \uad50\ucc28 \uac80\uc99d\uc744<\/a> <span style=\"color: #000000;\">\uc0ac\uc6a9\ud558\uc5ec<\/span> <span style=\"color: #000000;\">\ubaa8\ub378\uc5d0 \uc720\uc9c0\ud560 \ucd5c\uc801\uc758 PLS \uad6c\uc131 \uc694\uc18c \uc218\ub97c \ucc3e\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 R\uc5d0\uc11c \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud55c \ub2e8\uacc4\ubcc4 \uc608\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>1\ub2e8\uacc4: \ud544\uc694\ud55c \ud328\ud0a4\uc9c0 \ub85c\ub4dc<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">R\uc5d0\uc11c \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1\uc744 \uc218\ud589\ud558\ub294 \uac00\uc7a5 \uc26c\uc6b4 \ubc29\ubc95\uc740 <a href=\"https:\/\/cran.r-project.org\/web\/packages\/pls\/pls.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">pls<\/a> \ud328\ud0a4\uc9c0\uc758 \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#install pls package (if not already installed)<\/span>\ninstall.packages(\" <span style=\"color: #008000;\">pls<\/span> \")\n\n<span style=\"color: #008080;\">load pls package\n<\/span>library(pls)\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>2\ub2e8\uacc4: \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1 \ubaa8\ub378 \ud53c\ud305<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\uc774 \uc608\uc5d0\uc11c\ub294 \ub2e4\uc591\ud55c \uc720\ud615\uc758 \uc790\ub3d9\ucc28\uc5d0 \ub300\ud55c \ub370\uc774\ud130\uac00 \ud3ec\ud568\ub41c <strong>mtcars<\/strong> \ub77c\ub294 \ub0b4\uc7a5 R \ub370\uc774\ud130 \uc138\ud2b8\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view first six rows of mtcars dataset<\/span>\nhead(mtcars)\n\n                   mpg cyl disp hp drat wt qsec vs am gear carb\nMazda RX4 21.0 6 160 110 3.90 2.620 16.46 0 1 4 4\nMazda RX4 Wag 21.0 6 160 110 3.90 2.875 17.02 0 1 4 4\nDatsun 710 22.8 4 108 93 3.85 2.320 18.61 1 1 4 1\nHornet 4 Drive 21.4 6 258 110 3.08 3.215 19.44 1 0 3 1\nHornet Sportabout 18.7 8 360 175 3.15 3.440 17.02 0 0 3 2\nValiant 18.1 6 225 105 2.76 3,460 20.22 1 0 3 1\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uc774 \uc608\uc5d0\uc11c\ub294 <em>hp\ub97c<\/em> <a href=\"https:\/\/statorials.org\/ko\/\u1107\u1167\u11ab\u1109\u116e-\u1109\u1165\u11af\u1106\u1167\u11bc-\u110b\u1173\u11bc\u1103\u1161\u11b8\/\" target=\"_blank\" rel=\"noopener noreferrer\">\uc751\ub2f5 \ubcc0\uc218<\/a> \ub85c \uc0ac\uc6a9\ud558\uace0 \ub2e4\uc74c \ubcc0\uc218\ub97c \uc608\uce21 \ubcc0\uc218\ub85c \uc0ac\uc6a9\ud558\uc5ec \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1(PLS) \ubaa8\ub378\uc744 \uc801\ud569\ud569\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">mpg<\/span><\/li>\n<li> <span style=\"color: #000000;\">\ud45c\uc2dc\ud558\ub2e4<\/span><\/li>\n<li> <span style=\"color: #000000;\">\ub625<\/span><\/li>\n<li> <span style=\"color: #000000;\">\ubb34\uac8c<\/span><\/li>\n<li> <span style=\"color: #000000;\">q\ucd08<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 PLS \ubaa8\ub378\uc744 \uc774 \ub370\uc774\ud130\uc5d0 \ub9de\ucd94\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ub2e4\uc74c \uc778\uc218\uc5d0 \uc720\uc758\ud558\uc138\uc694.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>scale=TRUE<\/strong> : \uc774\ub294 \ub370\uc774\ud130 \uc138\ud2b8\uc758 \uac01 \ubcc0\uc218\uac00 \ud3c9\uade0 0, \ud45c\uc900 \ud3b8\ucc28 1\uc744 \uac16\ub3c4\ub85d \uc2a4\ucf00\uc77c\ub9c1\ub418\uc5b4\uc57c \ud568\uc744 R\uc5d0 \uc54c\ub824\uc90d\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \ub2e4\ub978 \ub2e8\uc704\ub85c \uce21\uc815\ud560 \uacbd\uc6b0 \uc608\uce21 \ubcc0\uc218\uac00 \ubaa8\ub378\uc5d0 \ub108\ubb34 \ub9ce\uc740 \uc601\ud5a5\uc744 \ubbf8\uce58\uc9c0 \uc54a\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\uac80\uc99d=\u201dCV\u201d<\/strong> : R\uc5d0\uac8c <a href=\"https:\/\/statorials.org\/ko\/k-\u1100\u1167\u11b8-\u1100\u116d\u110e\u1161-\u1100\u1165\u11b7\u110c\u1173\u11bc\/\" target=\"_blank\" rel=\"noopener noreferrer\">k-\uacb9 \uad50\ucc28 \uac80\uc99d\uc744<\/a> \uc0ac\uc6a9\ud558\uc5ec \ubaa8\ub378 \uc131\ub2a5\uc744 \ud3c9\uac00\ud558\ub3c4\ub85d \uc9c0\uc2dc\ud569\ub2c8\ub2e4. \uc774\ub294 \uae30\ubcf8\uc801\uc73c\ub85c k=10 \uc811\uae30\ub97c \uc0ac\uc6a9\ud55c\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc138\uc694. \ub610\ud55c <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1161\u11ab\u110b\u1175\u11af-\u1100\u116d\u110e\u1161-\u1100\u1165\u11b7\u110c\u1173\u11bc\u110b\u1173\u11af-\u1102\u1161\u11b7\u1100\u1167\u110c\u116e\u1109\u1166\u110b\u116d\/\" target=\"_blank\" rel=\"noopener noreferrer\">Leave-One-Out \uad50\ucc28 \uac80\uc99d\uc744<\/a> \uc218\ud589\ud558\ub294 \ub300\uc2e0 &#8220;LOOCV&#8221;\ub97c \uc9c0\uc815\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set.seed(1)\n\n<span style=\"color: #008080;\">#fit PCR model\n<\/span>model &lt;- plsr(hp~mpg+disp+drat+wt+qsec, data=mtcars, scale= <span style=\"color: #008000;\">TRUE<\/span> , validation=\" <span style=\"color: #008000;\">CV<\/span> \")<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>3\ub2e8\uacc4: PLS \uad6c\uc131 \uc694\uc18c \uc218 \uc120\ud0dd<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ubaa8\ub378\uc744 \ud53c\ud305\ud55c \ud6c4\uc5d0\ub294 \uc720\uc9c0\ud560 PLS \uad6c\uc131 \uc694\uc18c \uc218\ub97c \uacb0\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub97c \uc218\ud589\ud558\ub824\uba74 k-\uad50\ucc28 \uac80\uc99d\uc73c\ub85c \uacc4\uc0b0\ub41c \ud14c\uc2a4\ud2b8 \ud3c9\uade0 \uc81c\uacf1\uadfc \uc624\ucc28(\ud14c\uc2a4\ud2b8 RMSE)\ub97c \uc0b4\ud3b4\ubcf4\uc138\uc694.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view summary of model fitting\n<\/span>summary(model)\n\nData: \n\tY dimension: 32 1\nFit method: kernelpls\nNumber of components considered: 5\n\nVALIDATION: RMSEP\nCross-validated using 10 random segments.\n       (Intercept) 1 comp 2 comps 3 comps 4 comps 5 comps\nCV 69.66 40.57 35.48 36.22 36.74 36.67\nadjCV 69.66 40.41 35.12 35.80 36.27 36.20\n\nTRAINING: % variance explained\n    1 comp 2 comps 3 comps 4 comps 5 comps\nX 68.66 89.27 95.82 97.94 100.00\nhp 71.84 81.74 82.00 82.02 82.03\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\ub294 \ub450 \uac00\uc9c0 \ud765\ubbf8\ub85c\uc6b4 \ud14c\uc774\ube14\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>1. \uac80\uc99d: RMSEP<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \ud45c\ub294 k-\uacb9 \uad50\ucc28 \uac80\uc99d\uc73c\ub85c \uacc4\uc0b0\ub41c RMSE \ud14c\uc2a4\ud2b8\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\ubaa8\ub378\uc5d0\uc11c \uc6d0\ub798 \ud56d\ub9cc \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \ud14c\uc2a4\ud2b8\uc758 RMSE\ub294 <strong>69.66<\/strong> \uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\uccab \ubc88\uc9f8 PLS \uad6c\uc131 \uc694\uc18c\ub97c \ucd94\uac00\ud558\uba74 RMSE \ud14c\uc2a4\ud2b8\ub294 <strong>40.57\ub85c \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4.<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\ub450 \ubc88\uc9f8 PLS \uad6c\uc131 \uc694\uc18c\ub97c \ucd94\uac00\ud558\uba74 RMSE \ud14c\uc2a4\ud2b8\ub294 <strong>35.48\ub85c \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4.<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">PLS \uad6c\uc131 \uc694\uc18c\ub97c \ucd94\uac00\ud558\uba74 \uc2e4\uc81c\ub85c \ud14c\uc2a4\ud2b8\uc758 RMSE\uac00 \uc99d\uac00\ud558\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ucd5c\uc885 \ubaa8\ub378\uc5d0\uc11c\ub294 \ub450 \uac1c\uc758 PLS \uad6c\uc131 \uc694\uc18c\ub9cc \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \ucd5c\uc801\uc778 \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>2. \ud6c8\ub828: \uc124\uba85\ub41c \ubd84\uc0b0 %<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \ud45c\ub294 PLS \uad6c\uc131\uc694\uc18c\uc5d0 \uc758\ud574 \uc124\uba85\ub418\ub294 \ubc18\uc751 \ubcc0\uc218\uc758 \ubd84\uc0b0 \ube44\uc728\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\uccab \ubc88\uc9f8 PLS \uc131\ubd84\ub9cc \uc0ac\uc6a9\ud558\uc5ec \uc751\ub2f5 \ubcc0\uc218 \ubcc0\ub3d9\uc758 <strong>68.66%<\/strong> \ub97c \uc124\uba85\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\ub450 \ubc88\uc9f8 PLS \uc131\ubd84\uc744 \ucd94\uac00\ud558\uba74 \uc751\ub2f5 \ubcc0\uc218\uc758 \ubcc0\ub3d9\uc758 <strong>89.27%<\/strong> \ub97c \uc124\uba85\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\ub354 \ub9ce\uc740 PLS \uad6c\uc131\uc694\uc18c\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub354 \ub9ce\uc740 \ubd84\uc0b0\uc744 \uc124\uba85\ud560 \uc218 \uc788\uc9c0\ub9cc, \ub450 \uac1c \uc774\uc0c1\uc758 PLS \uad6c\uc131\uc694\uc18c\ub97c \ucd94\uac00\ud574\ub3c4 \uc2e4\uc81c\ub85c \uc124\uba85\ub418\ub294 \ubd84\uc0b0\uc758 \ube44\uc728\uc774 \uc99d\uac00\ud558\uc9c0 \uc54a\ub294\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub610\ud55c <strong>\uac80\uc99d \ud50c\ub86f()<\/strong> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec RMSE \ud14c\uc2a4\ud2b8(MSE \ubc0f R-\uc81c\uacf1 \ud14c\uc2a4\ud2b8\uc640 \ud568\uaed8)\ub97c PLS \uad6c\uc131 \uc694\uc18c \uc218\uc758 \ud568\uc218\ub85c \uc2dc\uac01\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#visualize cross-validation plots\n<\/span>validationplot(model)\nvalidationplot(model, val.type=\" <span style=\"color: #008000;\">MSEP<\/span> \")\nvalidationplot(model, val.type=\" <span style=\"color: #008000;\">R2<\/span> \")<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11975 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/svpr1.png\" alt=\"R\uc758 \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1\" width=\"396\" height=\"382\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11976 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sil-vous-plaitr2.png\" alt=\"R\uc758 MSE \uad50\ucc28 \uac80\uc99d\" width=\"396\" height=\"391\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11977 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sil-vous-plaitr3.png\" alt=\"R\uc758 \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1\uc5d0 \ub300\ud55c \uad50\ucc28 \uac80\uc99d\" width=\"397\" height=\"387\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\uac01 \uadf8\ub798\ud504\uc5d0\uc11c \ub450 \uac1c\uc758 PLS \uad6c\uc131 \uc694\uc18c\ub97c \ucd94\uac00\ud558\uba74 \ubaa8\ub378 \uc801\ud569\ub3c4\uac00 \ud5a5\uc0c1\ub418\uc9c0\ub9cc PLS \uad6c\uc131 \uc694\uc18c\ub97c \ub354 \ucd94\uac00\ud558\uba74 \ubaa8\ub378 \uc801\ud569\ub3c4\uac00 \uc800\ud558\ub418\ub294 \uacbd\ud5a5\uc774 \uc788\uc74c\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub530\ub77c\uc11c \ucd5c\uc801\uc758 \ubaa8\ub378\uc5d0\ub294 \ucc98\uc74c \ub450 \uac1c\uc758 PLS \uad6c\uc131 \uc694\uc18c\ub9cc \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>4\ub2e8\uacc4: \ucd5c\uc885 \ubaa8\ub378\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc608\uce21<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub450 \uac1c\uc758 PLS \uad6c\uc131\uc694\uc18c\uac00 \ud3ec\ud568\ub41c \ucd5c\uc885 \ubaa8\ub378\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc0c8\ub85c\uc6b4 \uad00\uce21\uac12\uc5d0 \ub300\ud574 \uc608\uce21\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 \uc6d0\ubcf8 \ub370\uc774\ud130\uc138\ud2b8\ub97c \ud6c8\ub828 \uc138\ud2b8\uc640 \ud14c\uc2a4\ud2b8 \uc138\ud2b8\ub85c \ubd84\ud560\ud558\uace0 \ub450 \uac1c\uc758 PLS \uad6c\uc131\uc694\uc18c\uac00 \uc788\ub294 \ucd5c\uc885 \ubaa8\ub378\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud14c\uc2a4\ud2b8 \uc138\ud2b8\uc5d0 \ub300\ud574 \uc608\uce21\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define training and testing sets\n<\/span>train &lt;- mtcars[1:25, c(\"hp\", \"mpg\", \"disp\", \"drat\", \"wt\", \"qsec\")]\ny_test &lt;- mtcars[26: <span style=\"color: #3366ff;\">nrow<\/span> (mtcars), c(\"hp\")]\ntest &lt;- mtcars[26: <span style=\"color: #3366ff;\">nrow<\/span> (mtcars), c(\"mpg\", \"disp\", \"drat\", \"wt\", \"qsec\")]\n    \n<span style=\"color: #008080;\">#use model to make predictions on a test set\n<\/span>model &lt;- plsr(hp~mpg+disp+drat+wt+qsec, data=train, scale= <span style=\"color: #008000;\">TRUE<\/span> , validation=\" <span style=\"color: #008000;\">CV<\/span> \")\npcr_pred &lt;- predict(model, test, ncomp= <span style=\"color: #008000;\">2<\/span> )\n\n<span style=\"color: #008080;\">#calculate RMSE\n<\/span><span style=\"color: #3366ff;\">sqrt<\/span> ( <span style=\"color: #3366ff;\">mean<\/span> ((pcr_pred - y_test)^2))\n\n[1] 54.89609\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\ud14c\uc2a4\ud2b8\uc758 RMSE\ub294 <strong>54.89609<\/strong> \ub85c \ub098\ud0c0\ub0ac\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ud14c\uc2a4\ud2b8 \uc138\ud2b8 \uad00\ucc30\uc5d0 \ub300\ud574 \uc608\uce21\ub41c <em>HP<\/em> \uac12\uacfc \uad00\ucc30\ub41c <em>HP<\/em> \uac12 \uc0ac\uc774\uc758 \ud3c9\uade0 \ud3b8\ucc28\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub450 \uac1c\uc758 <a href=\"https:\/\/statorials.org\/ko\/r\u110b\u1174-\u110c\u116e\u1109\u1165\u11bc\u1107\u116e\u11ab-\u1112\u116c\u1100\u1171\/\" target=\"_blank\" rel=\"noopener noreferrer\">\uc8fc\uc131\ubd84\uc774 \ud3ec\ud568\ub41c \ub4f1\uac00 \uc8fc\uc131\ubd84 \ud68c\uadc0 \ubaa8\ub378\uc740<\/a> <strong>56.86549<\/strong> \uc758 \ud14c\uc2a4\ud2b8 RMSE\ub97c \uc0dd\uc131\ud588\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c PLS \ubaa8\ub378\uc740 \uc774 \ub370\uc774\ud130\uc138\ud2b8\uc5d0 \ub300\ud574 PCR \ubaa8\ub378\ubcf4\ub2e4 \uc57d\uac04 \ub354 \ub098\uc740 \uc131\ub2a5\uc744 \ubcf4\uc600\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \uc608\uc81c\uc5d0\uc11c R \ucf54\ub4dc\uc758 \uc804\uccb4 \uc0ac\uc6a9\ubc95\uc740 <a href=\"https:\/\/github.com\/Statorials\/R-Guides\/blob\/main\/partial_least_squares.R\" target=\"_blank\" rel=\"noopener noreferrer\">\uc5ec\uae30\uc5d0\uc11c<\/a> \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uae30\uacc4 \ud559\uc2b5\uc5d0\uc11c \uc9c1\uba74\ud558\uac8c \ub418\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubb38\uc81c \uc911 \ud558\ub098\ub294 \ub2e4\uc911 \uacf5\uc120\uc131 \uc785\ub2c8\ub2e4. \uc774\ub294 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0\uc11c \ub450 \uac1c \uc774\uc0c1\uc758 \uc608\uce21 \ubcc0\uc218\uac00 \ub192\uc740 \uc0c1\uad00 \uad00\uacc4\ub97c \uac00\uc9c8 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\ub7f0 \uc77c\uc774 \ubc1c\uc0dd\ud558\uba74 \ubaa8\ub378\uc740 \ud6c8\ub828 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uc798 \ub9de\uc744 \uc218 \uc788\uc9c0\ub9cc, \ud6c8\ub828 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uacfc\uc801\ud569\ub418\uae30 \ub54c\ubb38\uc5d0 \ubcf8 \uc801\uc774 \uc5c6\ub294 \uc0c8\ub85c\uc6b4 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0\uc11c\ub294 \uc131\ub2a5\uc774 \uc800\ud558 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b8\ub808\uc774\ub2dd \uc138\ud2b8. [&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-1208","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>R\uc758 \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1(\ub2e8\uacc4\ubcc4)<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 \ub2e8\uacc4\ubcc4 \uc608\uc81c\ub97c \ud3ec\ud568\ud558\uc5ec R\uc5d0\uc11c \ubd80\ubd84 \ucd5c\uc18c \uc81c\uacf1\uc744 \uc218\ud589\ud558\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 rel=\"canonical\" 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