{"id":502,"date":"2023-07-29T16:45:15","date_gmt":"2023-07-29T16:45:15","guid":{"rendered":"https:\/\/statorials.org\/ko\/%e1%84%87%e1%85%ae%e1%86%ab%e1%84%89%e1%85%a1%e1%86%ab-%e1%84%91%e1%85%a2%e1%86%bc%e1%84%8e%e1%85%a1%e1%86%bc-%e1%84%8b%e1%85%b5%e1%86%ab%e1%84%8c%e1%85%a1-r\/"},"modified":"2023-07-29T16:45:15","modified_gmt":"2023-07-29T16:45:15","slug":"%e1%84%87%e1%85%ae%e1%86%ab%e1%84%89%e1%85%a1%e1%86%ab-%e1%84%91%e1%85%a2%e1%86%bc%e1%84%8e%e1%85%a1%e1%86%bc-%e1%84%8b%e1%85%b5%e1%86%ab%e1%84%8c%e1%85%a1-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/%e1%84%87%e1%85%ae%e1%86%ab%e1%84%89%e1%85%a1%e1%86%ab-%e1%84%91%e1%85%a2%e1%86%bc%e1%84%8e%e1%85%a1%e1%86%bc-%e1%84%8b%e1%85%b5%e1%86%ab%e1%84%8c%e1%85%a1-r\/","title":{"rendered":"R\uc5d0\uc11c vif(variance inflation factor)\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\ud68c\uadc0 \ubd84\uc11d\uc758 <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">\ub2e4\uc911 \uacf5\uc120\uc131\uc740<\/a> \ub458 \uc774\uc0c1\uc758 \uc608\uce21 \ubcc0\uc218\uac00 \uc11c\ub85c \ub192\uc740 \uc0c1\uad00 \uad00\uacc4\ub97c \uac16\uace0 \uc788\uc5b4 \ud68c\uadc0 \ubaa8\ub378\uc5d0\uc11c \uace0\uc720\ud558\uac70\ub098 \ub3c5\ub9bd\uc801\uc778 \uc815\ubcf4\ub97c \uc81c\uacf5\ud558\uc9c0 \uc54a\ub294 \uacbd\uc6b0\uc5d0 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ubcc0\uc218 \uac04\uc758 \uc0c1\uad00 \uc815\ub3c4\uac00 \ucda9\ubd84\ud788 \ub192\uc73c\uba74 <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">\ud68c\uadc0 \ubaa8\ub378\uc744 \ud53c\ud305\ud558\uace0 \ud574\uc11d\ud560<\/a> \ub54c \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc911 \uacf5\uc120\uc131\uc744 \ud0d0\uc9c0\ud558\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 \ud68c\uadc0 \ubaa8\ub378\uc5d0\uc11c \uc608\uce21 \ubcc0\uc218 \uac04\uc758 <a href=\"https:\/\/statorials.org\/ko\/\u1111\u1175\u110b\u1165\u1109\u1173\u11ab-\u1109\u1161\u11bc\u1100\u116a\u11ab-\u1100\u1168\u1109\u116e-1\/\" target=\"_blank\" rel=\"noopener\">\uc0c1\uad00 \uad00\uacc4<\/a> \ubc0f \uc0c1\uad00 \uac15\ub3c4\ub97c \uce21\uc815\ud558\ub294 \ubd84\uc0b0 \ud33d\ucc3d \uacc4\uc218(VIF)\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">VIF \uac12\uc740 1\ubd80\ud130 \uc2dc\uc791\ud558\uba70 \uc0c1\ud55c\uc774 \uc5c6\uc2b5\ub2c8\ub2e4. VIF\ub97c \ud574\uc11d\ud558\ub294 \uc77c\ubc18\uc801\uc778 \uaddc\uce59\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\uac12 1\uc740 \uc8fc\uc5b4\uc9c4 \uc608\uce21 \ubcc0\uc218\uc640 \ubaa8\ub378\uc758 \ub2e4\ub978 \uc608\uce21 \ubcc0\uc218 \uc0ac\uc774\uc5d0 \uc0c1\uad00 \uad00\uacc4\uac00 \uc5c6\uc74c\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">1\uacfc 5 \uc0ac\uc774\uc758 \uac12\uc740 \uc8fc\uc5b4\uc9c4 \uc608\uce21 \ubcc0\uc218\uc640 \ubaa8\ub378\uc758 \ub2e4\ub978 \uc608\uce21 \ubcc0\uc218 \uc0ac\uc774\uc758 \uc911\uac04 \uc815\ub3c4\uc758 \uc0c1\uad00 \uad00\uacc4\ub97c \ub098\ud0c0\ub0b4\uc9c0\ub9cc \ud2b9\ubcc4\ud55c \uc8fc\uc758\uac00 \ud544\uc694\ud560 \ub9cc\ud07c \uc2ec\uac01\ud558\uc9c0\ub294 \uc54a\uc740 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">5\ubcf4\ub2e4 \ud070 \uac12\uc740 \uc8fc\uc5b4\uc9c4 \uc608\uce21 \ubcc0\uc218\uc640 \ubaa8\ub378\uc758 \ub2e4\ub978 \uc608\uce21 \ubcc0\uc218 \uc0ac\uc774\uc5d0 \uc7a0\uc7ac\uc801\uc73c\ub85c \uc2ec\uac01\ud55c \uc0c1\uad00 \uad00\uacc4\uac00 \uc788\uc74c\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ud68c\uadc0 \uacb0\uacfc\uc758 \uacc4\uc218 \ucd94\uc815\uce58\uc640 p-\uac12\uc740 \uc2e0\ub8b0\ud560 \uc218 \uc5c6\uc744 \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\ub192\uc740 VIF \uac12\uc744 <a href=\"https:\/\/statisticalhorizons.com\/multicollinearity\" target=\"_blank\" rel=\"noopener\">\ubb34\uc2dc\ud574\ub3c4 \ub418\ub294<\/a> \uacbd\uc6b0\uac00 \uc788\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc138\uc694.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>R\uc5d0\uc11c VIF\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">R\uc5d0\uc11c \ud68c\uadc0 \ubaa8\ub378\uc5d0 \ub300\ud55c VIF\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud558\uae30 \uc704\ud574 \ub0b4\uc7a5\ub41c <em>mtcars<\/em> \ub370\uc774\ud130 \uc138\ud2b8\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view first six lines of <em>mtcars<\/em><\/span>\nhead(mtcars)\n\n# mpg cyl disp hp drat wt qsec vs am gear carb\n#Mazda RX4 21.0 6 160 110 3.90 2.620 16.46 0 1 4 4\n#Mazda RX4 Wag 21.0 6 160 110 3.90 2.875 17.02 0 1 4 4\n#Datsun 710 22.8 4 108 93 3.85 2.320 18.61 1 1 4 1\n#Hornet 4 Drive 21.4 6 258 110 3.08 3.215 19.44 1 0 3 1\n#Hornet Sportabout 18.7 8 360 175 3.15 3.440 17.02 0 0 3 2\n#Valiant 18.1 6 225 105 2.76 3.460 20.22 1 0 3 1<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uba3c\uc800 <em>mpg\ub97c<\/em> \uc751\ub2f5 \ubcc0\uc218\ub85c \uc0ac\uc6a9\ud558\uace0 <em>disp<\/em> , <em>hp<\/em> , <em>wt<\/em> \ubc0f <em>drat\ub97c<\/em> \uc608\uce21 \ubcc0\uc218\ub85c \uc0ac\uc6a9\ud558\uc5ec \ud68c\uadc0 \ubaa8\ub378\uc744 \ud53c\ud305\ud569\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#fit the regression model<\/span>\nmodel &lt;- lm(mpg ~ disp + hp + wt + drat, data = mtcars)\n\n<span style=\"color: #008080;\">#view the output of the regression model\n<\/span>summary(model)\n\n#Call:\n#lm(formula = mpg ~ disp + hp + wt + drat, data = mtcars)\n#\n#Residuals:\n# Min 1Q Median 3Q Max \n#-3.5077 -1.9052 -0.5057 0.9821 5.6883 \n#\n#Coefficients:\n#Estimate Std. Error t value Pr(&gt;|t|)    \n#(Intercept) 29.148738 6.293588 4.631 8.2e-05 ***\n#available 0.003815 0.010805 0.353 0.72675    \n#hp -0.034784 0.011597 -2.999 0.00576 ** \n#wt -3.479668 1.078371 -3.227 0.00327 ** \n#drat 1.768049 1.319779 1.340 0.19153    \n#---\n#Significant. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1\n#\n#Residual standard error: 2.602 on 27 degrees of freedom\n#Multiple R-squared: 0.8376, Adjusted R-squared: 0.8136 \n#F-statistic: 34.82 on 4 and 27 DF, p-value: 2.704e-10\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \ubaa8\ub378\uc758 <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">R \uc81c\uacf1 \uac12\uc774<\/a> <strong>0.8376<\/strong> \uc784\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c <a href=\"https:\/\/statorials.org\/ko\/\u1112\u116c\u1100\u1171-\u1107\u116e\u11ab\u1109\u1165\u11a8\u110b\u1174-\u110c\u1165\u11ab\u1107\u1161\u11ab\u110c\u1165\u11a8\u110b\u1175\u11ab-\u110c\u116e\u11bc\u110b\u116d\u1109\u1165\u11bc\u110b\u1166-\u1103\u1162\u1112\u1161\u11ab-f-\u1110\u1166\u1109\u1173\u1110\u1173\u1105\u1173\u11af-\u110b\u1175\u1112\u1162\u1112\u1161\u1100\u1175-\u110b\u1171\u1112\u1161\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u11ab-\u1100\u1161\u110b\u1175\u1103\u1173\/\" target=\"_blank\" rel=\"noopener\">\uc804\uccb4 F \ud1b5\uacc4\ub7c9<\/a> \uc740 <strong>34.82<\/strong> \uc774\uace0 \ud574\ub2f9 p-\uac12\uc740 <strong>2.704e-10<\/strong> \uc73c\ub85c \uc804\uccb4 \ud68c\uadc0 \ubaa8\ub378\uc774 \uc720\uc758\ubbf8\ud558\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c<\/span> <span style=\"color: #000000;\">\uc608\uce21 \ubcc0\uc218 <em>hp<\/em> \uc640 <em>wt<\/em> \ub294 0.05 \uc720\uc758 \uc218\uc900\uc5d0\uc11c \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ubbf8\ud55c \ubc18\uba74, <em>disp<\/em> \uc640 <em>drat\ub294<\/em> \uadf8\ub807\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c\uc73c\ub85c, \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 <strong>vive()<\/strong> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubaa8\ub378\uc758 \uac01 \uc608\uce21 \ubcc0\uc218\uc5d0 \ub300\ud55c VIF\ub97c \uacc4\uc0b0 <strong>\ud569\ub2c8\ub2e4<\/strong> .<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load the <em>car<\/em> library<\/span>\nlibrary(car)\n\n<span style=\"color: #008080;\">#calculate the VIF for each predictor variable in the model\n<\/span>lively(model)\n\n# disp hp wt drat \n#8.209402 2.894373 5.096601 2.279547 \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><em>disp<\/em> \ubc0f <em>wt<\/em> \uc5d0 \ub300\ud55c VIF\uac00 5\ubcf4\ub2e4 \ud06c\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\ub294\ub370, \uc774\ub294 \uc7a0\uc7ac\uc801\uc73c\ub85c \uc6b0\ub824\ud560 \ub9cc\ud55c \uc77c\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>VIF \uac12 \ubcf4\uae30<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\uac01 \uc608\uce21 \ubcc0\uc218\uc5d0 \ub300\ud55c VIF \uac12\uc744 \uc2dc\uac01\ud654\ud558\uae30 \uc704\ud574 \uac04\ub2e8\ud55c \uc218\ud3c9 \ub9c9\ub300 \ucc28\ud2b8\ub97c \ub9cc\ub4e4\uace0 5\uc5d0 \uc218\uc9c1\uc120\uc744 \ucd94\uac00\ud558\uba74 \uc5b4\ub5a4 VIF \uac12\uc774 5\ub97c \ucd08\uacfc\ud558\ub294\uc9c0 \uba85\ud655\ud558\uac8c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create vector of VIF values<\/span>\nvive_values &lt;- vive(model)\n\n<span style=\"color: #008080;\">#create horizontal bar chart to display each VIF value\n<\/span>barplot(vif_values, main = \"VIF Values\", horiz = TRUE, col = \"steelblue\")\n\n<span style=\"color: #008080;\">#add vertical line at 5\n<\/span>abline(v = 5, lwd = 3, lty = 2)<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uc774 \uc720\ud615\uc758 \ucc28\ud2b8\ub294 \uc608\uce21 \ubcc0\uc218\uac00 \ub9ce\uc740 \ubaa8\ub378\uc5d0 \uac00\uc7a5 \uc720\uc6a9\ud558\ubbc0\ub85c \ubaa8\ub4e0 VIF \uac12\uc744 \ud55c \ubc88\uc5d0 \uc27d\uac8c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc774 \uc608\uc5d0\uc11c\ub294 \uc720\uc6a9\ud55c \ucc28\ud2b8\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ubaa8\ub378\uc5d0 \ud3ec\ud568\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \ub192\ub2e4\uace0 \uc0dd\uac01\ub418\ub294 VIF \uac12\uc5d0 \ub530\ub77c \ud2b9\uc815 \uc608\uce21 \ubcc0\uc218\ub97c \uc81c\uac70\ud558\uace0 \ubaa8\ub378\uc758 \ud574\ub2f9 <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">R \uc81c\uacf1 \uac12<\/a> \uc774\ub098 <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">\ud45c\uc900 \uc624\ucc28\uac00<\/a> \uc601\ud5a5\uc744 \ubc1b\ub294\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uc608\uce21\ubcc0\uc218 \uac04\uc758 \uc0c1\uad00\uad00\uacc4 \uc2dc\uac01\ud654<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\uc608\uce21 \ubcc0\uc218\uc758 VIF \uac12\uc774 \ub192\uc740 \uc774\uc720\ub97c \ub354 \uc798 \uc774\ud574\ud558\uae30 \uc704\ud574 \uc0c1\uad00 \ud589\ub82c\uc744 \ub9cc\ub4e4\uc5b4 \uac01 \ubcc0\uc218 \uc30d \uc0ac\uc774\uc758 \uc120\ud615 \uc0c1\uad00 \uacc4\uc218\ub97c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define the variables we want to include in the correlation matrix<\/span>\ndata &lt;- mtcars[, c(\"disp\", \"hp\", \"wt\", \"drat\")]\n\n<span style=\"color: #008080;\">#create correlation matrix<\/span>\ncor(data)\n\n# disp hp wt drat\n#available 1.0000000 0.7909486 0.8879799 -0.7102139\n#hp 0.7909486 1.0000000 0.6587479 -0.4487591\n#wt 0.8879799 0.6587479 1.0000000 -0.7124406\n#drat -0.7102139 -0.4487591 -0.7124406 1.0000000\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><em>disp<\/em> \ubcc0\uc218\uc758 VIF \uac12\uc740 8\ubcf4\ub2e4 \ucef8\uc73c\uba70, \uc774\ub294 \ubaa8\ub378\uc758 \ubaa8\ub4e0 \uc608\uce21 \ubcc0\uc218 \uc911\uc5d0\uc11c \uac00\uc7a5 \ub192\uc740 VIF \uac12\uc774\uc5c8\uc2b5\ub2c8\ub2e4. \uc0c1\uad00 \ud589\ub82c\uc5d0\uc11c <em>disp\uac00<\/em> \ub2e4\ub978 \uc138 \uac00\uc9c0 \uc608\uce21 \ubcc0\uc218\uc640 \ub192\uc740 \uc0c1\uad00 \uad00\uacc4\uac00 \uc788\uc74c\uc744 \uc54c \uc218 \uc788\uc73c\uba70, \uc774\ub294 VIF \uac12\uc774 \uadf8\ub807\uac8c \ub192\uc740 \uc774\uc720\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \uacbd\uc6b0 VIF \uac12\uc774 <em>\ub192\uace0<\/em> 0.05 \uc720\uc758 \uc218\uc900\uc5d0\uc11c \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ud558\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \ubaa8\ub378\uc5d0\uc11c <em>disp\ub97c<\/em> \uc81c\uac70\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc0c1\uad00 \ud589\ub82c\uacfc VIF\ub294 \uc720\uc0ac\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub450 \uac00\uc9c0 \ubaa8\ub450 \ud68c\uadc0 \ubaa8\ub378\uc5d0\uc11c \ubcc0\uc218\uac00 \ud558\ub098 \uc774\uc0c1\uc758 \ub2e4\ub978 \ubcc0\uc218\uc640 \ub192\uc740 \uc0c1\uad00 \uad00\uacc4\ub97c \ub098\ud0c0\ub0b4\ub294 \uc2dc\uae30\ub97c \uc54c\ub824\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<p> <strong><span style=\"color: #000000;\">\ucd94\uac00 \uc790\ub8cc:<\/span><\/strong><br \/> <strong><a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">\ud68c\uadc0 \ubd84\uc11d\uc758 \ub2e4\uc911 \uacf5\uc120\uc131\uacfc VIF\uc5d0 \ub300\ud55c \uac00\uc774\ub4dc<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u1112\u1161\u11a8\u110b\u1173\u11ab-\u1100\u1161\u11ab\u1103\u1161\u11ab\u1112\u1161\u1100\u1169-\u110c\u1175\u11a8\u110c\u1165\u11b8\u110c\u1165\u11a8\u110b\u1175\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\u110b\u1173\u1105\u1169-\u1100\u1162\u1102\u1167\u11b7\u110b\u1173\u11af-\u1109\u1165\u11af\u1106\u1167\u11bc\u1112\u1161\u1106\u1173\u1105\u1169-\u1110\u1169\u11bc\u1100\u1168\u1105\u1173\u11af-\u1103\u1165-\u1109\u1171\u11b8\u1100\u1166-\u1107\u1162\u110b\u116e\u11af-\u1109\u116e-\u110b\u1175\u11bb\u1109\u1173\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">\uc88b\uc740 R \uc81c\uacf1 \uac12\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud68c\uadc0 \ubd84\uc11d\uc758 \ub2e4\uc911 \uacf5\uc120\uc131\uc740 \ub458 \uc774\uc0c1\uc758 \uc608\uce21 \ubcc0\uc218\uac00 \uc11c\ub85c \ub192\uc740 \uc0c1\uad00 \uad00\uacc4\ub97c \uac16\uace0 \uc788\uc5b4 \ud68c\uadc0 \ubaa8\ub378\uc5d0\uc11c \uace0\uc720\ud558\uac70\ub098 \ub3c5\ub9bd\uc801\uc778 \uc815\ubcf4\ub97c \uc81c\uacf5\ud558\uc9c0 \uc54a\ub294 \uacbd\uc6b0\uc5d0 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ubcc0\uc218 \uac04\uc758 \uc0c1\uad00 \uc815\ub3c4\uac00 \ucda9\ubd84\ud788 \ub192\uc73c\uba74 \ud68c\uadc0 \ubaa8\ub378\uc744 \ud53c\ud305\ud558\uace0 \ud574\uc11d\ud560 \ub54c \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc911 \uacf5\uc120\uc131\uc744 \ud0d0\uc9c0\ud558\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 \ud68c\uadc0 \ubaa8\ub378\uc5d0\uc11c \uc608\uce21 \ubcc0\uc218 \uac04\uc758 \uc0c1\uad00 \uad00\uacc4 \ubc0f \uc0c1\uad00 \uac15\ub3c4\ub97c \uce21\uc815\ud558\ub294 [&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-502","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\uc5d0\uc11c VIF(Variance Inflation Factor)\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95 - \ud1b5\uacc4\ud559<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 \ud68c\uadc0 \ubaa8\ub378\uc5d0\uc11c \ub2e4\uc911 \uacf5\uc120\uc131\uc744 \ud0d0\uc9c0\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uba54\ud2b8\ub9ad\uc778 R\uc5d0\uc11c VIF\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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