{"id":502,"date":"2023-07-29T16:45:15","date_gmt":"2023-07-29T16:45:15","guid":{"rendered":"https:\/\/statorials.org\/ar\/%d8%b9%d8%a7%d9%85%d9%84-%d8%a7%d9%84%d8%aa%d8%b6%d8%ae%d9%85-%d8%a7%d9%84%d8%aa%d8%a8%d8%a7%d9%8a%d9%86-%d8%b5\/"},"modified":"2023-07-29T16:45:15","modified_gmt":"2023-07-29T16:45:15","slug":"%d8%b9%d8%a7%d9%85%d9%84-%d8%a7%d9%84%d8%aa%d8%b6%d8%ae%d9%85-%d8%a7%d9%84%d8%aa%d8%a8%d8%a7%d9%8a%d9%86-%d8%b5","status":"publish","type":"post","link":"https:\/\/statorials.org\/ar\/%d8%b9%d8%a7%d9%85%d9%84-%d8%a7%d9%84%d8%aa%d8%b6%d8%ae%d9%85-%d8%a7%d9%84%d8%aa%d8%a8%d8%a7%d9%8a%d9%86-%d8%b5\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u062d\u0633\u0627\u0628 \u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0636\u062e\u0645 \u0627\u0644\u062a\u0628\u0627\u064a\u0646 (vif) \u0641\u064a r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p style=\";text-align:right;direction:rtl\"><span style=\"color: #000000;\">\u062a\u062d\u062f\u062b \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u062e\u0637\u064a\u0629 \u0627\u0644\u0645\u062a\u0639\u062f\u062f\u0629 \u0641\u064a \u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u0639\u0646\u062f\u0645\u0627 \u064a\u0631\u062a\u0628\u0637 \u0645\u062a\u063a\u064a\u0631\u0627\u0646 \u0623\u0648 \u0623\u0643\u062b\u0631 \u0645\u0646 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639 \u0627\u0631\u062a\u0628\u0627\u0637\u064b\u0627 \u0648\u062b\u064a\u0642\u064b\u0627 \u0628\u0628\u0639\u0636\u0647\u0645\u0627 \u0627\u0644\u0628\u0639\u0636\u060c \u0628\u062d\u064a\u062b \u0644\u0627 \u064a\u0648\u0641\u0631\u0627\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0641\u0631\u064a\u062f\u0629 \u0623\u0648 \u0645\u0633\u062a\u0642\u0644\u0629 \u0641\u064a \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u062f\u0631\u062c\u0629 \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637 \u0639\u0627\u0644\u064a\u0629 \u0628\u0645\u0627 \u064a\u0643\u0641\u064a \u0628\u064a\u0646 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a\u060c \u0641\u0642\u062f \u064a\u062a\u0633\u0628\u0628 \u0630\u0644\u0643 \u0641\u064a \u062d\u062f\u0648\u062b \u0645\u0634\u0643\u0644\u0627\u062a \u0639\u0646\u062f \u0645\u0644\u0627\u0621\u0645\u0629 \u0648\u062a\u0641\u0633\u064a\u0631 \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 .<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0623\u0643\u062b\u0631 \u0634\u064a\u0648\u0639\u064b\u0627 \u0644\u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u062e\u0637\u064a\u0629 \u0627\u0644\u0645\u062a\u0639\u062f\u062f\u0629 \u0647\u064a \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0639\u0627\u0645\u0644 \u062a\u0636\u062e\u0645 \u0627\u0644\u062a\u0628\u0627\u064a\u0646 (VIF)\u060c \u0627\u0644\u0630\u064a \u064a\u0642\u064a\u0633 <a href=\"https:\/\/statorials.org\/ar\/\u0645\u0639\u0627\u0645\u0644-\u0627\u0631\u062a\u0628\u0627\u0637-\u0628\u064a\u0631\u0633\u0648\u0646-1\/\" target=\"_blank\" rel=\"noopener\">\u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637<\/a> \u0648\u0642\u0648\u0629 \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u064a\u0646 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639 \u0641\u064a \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u062a\u0628\u062f\u0623 \u0642\u064a\u0645\u0629 VIF \u0639\u0646\u062f 1 \u0648\u0644\u064a\u0633 \u0644\u0647\u0627 \u062d\u062f \u0623\u0639\u0644\u0649. \u0627\u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0644\u062a\u0641\u0633\u064a\u0631 VIFs \u0647\u064a:<\/span><\/p>\n<ul style=\";text-align:right;direction:rtl\">\n<li style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u062a\u0634\u064a\u0631 \u0627\u0644\u0642\u064a\u0645\u0629 1 \u0625\u0644\u0649 \u0639\u062f\u0645 \u0648\u062c\u0648\u062f \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u064a\u0646 \u0645\u062a\u063a\u064a\u0631 \u062a\u0648\u0642\u0639 \u0645\u0639\u064a\u0646 \u0648\u0623\u064a \u0645\u062a\u063a\u064a\u0631 \u062a\u0648\u0642\u0639 \u0622\u062e\u0631 \u0641\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c.<\/span><\/li>\n<li style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u062a\u0634\u064a\u0631 \u0627\u0644\u0642\u064a\u0645\u0629 \u0628\u064a\u0646 1 \u06485 \u0625\u0644\u0649 \u0648\u062c\u0648\u062f \u0639\u0644\u0627\u0642\u0629 \u0645\u0639\u062a\u062f\u0644\u0629 \u0628\u064a\u0646 \u0645\u062a\u063a\u064a\u0631 \u0645\u062a\u0646\u0628\u0626 \u0645\u0639\u064a\u0646 \u0648\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u062a\u0646\u0628\u0624\u064a\u0629 \u0623\u062e\u0631\u0649 \u0641\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u060c \u0648\u0644\u0643\u0646\u0647\u0627 \u0641\u064a \u0643\u062b\u064a\u0631 \u0645\u0646 \u0627\u0644\u0623\u062d\u064a\u0627\u0646 \u0644\u064a\u0633\u062a \u0634\u062f\u064a\u062f\u0629 \u0628\u0645\u0627 \u064a\u0643\u0641\u064a \u0644\u062a\u062a\u0637\u0644\u0628 \u0627\u0647\u062a\u0645\u0627\u0645\u064b\u0627 \u062e\u0627\u0635\u064b\u0627.<\/span><\/li>\n<li style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u062a\u0634\u064a\u0631 \u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0623\u0643\u0628\u0631 \u0645\u0646 5 \u0625\u0644\u0649 \u0648\u062c\u0648\u062f \u0639\u0644\u0627\u0642\u0629 \u062c\u062f\u064a\u0629 \u0645\u062d\u062a\u0645\u0644\u0629 \u0628\u064a\u0646 \u0645\u062a\u063a\u064a\u0631 \u062a\u0648\u0642\u0639 \u0645\u0639\u064a\u0646 \u0648\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u062a\u0648\u0642\u0639 \u0623\u062e\u0631\u0649 \u0641\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c. \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u0645\u0646 \u0627\u0644\u0645\u062d\u062a\u0645\u0644 \u0623\u0646 \u062a\u0643\u0648\u0646 \u062a\u0642\u062f\u064a\u0631\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u0645\u0644 \u0648\u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u064a\u0629 \u0641\u064a \u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u063a\u064a\u0631 \u0645\u0648\u062b\u0648\u0642\u0629.<\/span><\/li>\n<\/ul>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0644\u0627\u062d\u0638 \u0623\u0646 \u0647\u0646\u0627\u0643 \u0628\u0639\u0636 \u0627\u0644\u062d\u0627\u0644\u0627\u062a \u0627\u0644\u062a\u064a <a href=\"https:\/\/statisticalhorizons.com\/multicollinearity\" target=\"_blank\" rel=\"noopener\">\u064a\u0645\u0643\u0646 \u0641\u064a\u0647\u0627 \u062a\u062c\u0627\u0647\u0644 \u0642\u064a\u0645 VIF \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0628\u0623\u0645\u0627\u0646<\/a> .<\/span><\/p>\n<h3 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\"><strong>\u0643\u064a\u0641\u064a\u0629 \u062d\u0633\u0627\u0628 VIF \u0641\u064a R<\/strong><\/span><\/h3>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0644\u062a\u0648\u0636\u064a\u062d \u0643\u064a\u0641\u064a\u0629 \u062d\u0633\u0627\u0628 VIF \u0644\u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u0641\u064a R\u060c \u0633\u0648\u0641 \u0646\u0633\u062a\u062e\u062f\u0645 \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a <em>mtcars<\/em> \u0627\u0644\u0645\u0636\u0645\u0646\u0629:<\/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 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0623\u0648\u0644\u0627\u064b\u060c \u0633\u0646\u0644\u0627\u0626\u0645 \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 <em>mpg<\/em> \u0643\u0645\u062a\u063a\u064a\u0631 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0648 <em>disp<\/em> \u0648 <em>hp<\/em> \u0648 <em>wt<\/em> \u0648 <em>drat<\/em> \u0643\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0645\u062a\u0648\u0642\u0639\u0629:<\/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 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u064a\u0645\u0643\u0646\u0646\u0627 \u0623\u0646 \u0646\u0631\u0649 \u0645\u0646 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0623\u0646 \u0642\u064a\u0645\u0629 R \u0627\u0644\u062a\u0631\u0628\u064a\u0639\u064a\u0629 \u0644\u0644\u0646\u0645\u0648\u0630\u062c \u0647\u064a <strong>0.8376<\/strong> . \u064a\u0645\u0643\u0646\u0646\u0627 \u0623\u064a\u0636\u064b\u0627 \u0623\u0646 \u0646\u0631\u0649 \u0623\u0646 <a href=\"https:\/\/statorials.org\/ar\/\u062f\u0644\u064a\u0644-\u0628\u0633\u064a\u0637-\u0644\u0641\u0647\u0645-\u0627\u062e\u062a\u0628\u0627\u0631-f-\u0644\u0644\u0627\u0654\u0647\u0645\u064a\u0629-\u0627\u0644\u0634\u0627\u0645\u0644\u0629-\u0641\u064a-\u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631\/\" target=\"_blank\" rel=\"noopener\">\u0625\u062d\u0635\u0627\u0626\u064a\u0627\u062a F \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a\u0629<\/a> \u0647\u064a <strong>34.82<\/strong> \u0648\u0627\u0644\u0642\u064a\u0645\u0629 p \u0627\u0644\u0645\u0642\u0627\u0628\u0644\u0629 \u0647\u064a <strong>2.704e-10<\/strong> \u060c \u0645\u0645\u0627 \u064a\u0634\u064a\u0631 \u0625\u0644\u0649 \u0623\u0646 \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u0627\u0644\u0639\u0627\u0645 \u0645\u0647\u0645. \u0639\u0644\u0627\u0648\u0629 \u0639\u0644\u0649 \u0630\u0644\u0643\u060c<\/span> <span style=\"color: #000000;\">\u0641\u0625\u0646 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639 <em>hp<\/em> \u0648 <em>wt<\/em> \u0630\u0627\u062a \u062f\u0644\u0627\u0644\u0629 \u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0639\u0646\u062f \u0645\u0633\u062a\u0648\u0649 \u062f\u0644\u0627\u0644\u0629 0.05\u060c \u0641\u064a \u062d\u064a\u0646 \u0623\u0646 <em>disp<\/em> \u0648 <em>drat<\/em> \u0644\u064a\u0633\u0627 \u0643\u0630\u0644\u0643.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0628\u0639\u062f \u0630\u0644\u0643\u060c \u0633\u0648\u0641 \u0646\u0633\u062a\u062e\u062f\u0645 \u062f\u0627\u0644\u0629 <strong>vive()<\/strong> \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0645\u0643\u062a\u0628\u0629 <strong>\u0644\u062d\u0633\u0627\u0628<\/strong> VIF \u0644\u0643\u0644 \u0645\u062a\u063a\u064a\u0631 \u0645\u062a\u0646\u0628\u0626 \u0641\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c:<\/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 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u064a\u0645\u0643\u0646\u0646\u0627 \u0623\u0646 \u0646\u0631\u0649 \u0623\u0646 VIFs <em>\u0644\u0644\u062f\u064a\u0633\u0628<\/em> <em>\u0648\u0627\u0644\u0648\u0632\u0646<\/em> \u0623\u0643\u0628\u0631 \u0645\u0646 5\u060c \u0648\u0647\u0648 \u0623\u0645\u0631 \u0645\u0646 \u0627\u0644\u0645\u062d\u062a\u0645\u0644 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0645\u0642\u0644\u0642\u064b\u0627.<\/span><\/p>\n<h3 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\"><strong>\u0639\u0631\u0636 \u0642\u064a\u0645 VIF<\/strong><\/span><\/h3>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0644\u062a\u0635\u0648\u0631 \u0642\u064a\u0645 VIF \u0644\u0643\u0644 \u0645\u062a\u063a\u064a\u0631 \u0645\u062a\u0648\u0642\u0639\u060c \u064a\u0645\u0643\u0646\u0646\u0627 \u0625\u0646\u0634\u0627\u0621 \u0645\u062e\u0637\u0637 \u0634\u0631\u064a\u0637\u064a \u0623\u0641\u0642\u064a \u0628\u0633\u064a\u0637 \u0648\u0625\u0636\u0627\u0641\u0629 \u062e\u0637 \u0639\u0645\u0648\u062f\u064a \u0639\u0646\u062f 5 \u062d\u062a\u0649 \u0646\u062a\u0645\u0643\u0646 \u0645\u0646 \u0631\u0624\u064a\u0629 \u0642\u064a\u0645 VIF \u0627\u0644\u062a\u064a \u062a\u062a\u062c\u0627\u0648\u0632 5 \u0628\u0648\u0636\u0648\u062d:<\/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 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0644\u0627\u062d\u0638 \u0623\u0646 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0645\u062e\u0637\u0637\u0627\u062a \u0633\u064a\u0643\u0648\u0646 \u0645\u0641\u064a\u062f\u064b\u0627 \u062c\u062f\u064b\u0627 \u0644\u0644\u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0630\u064a \u064a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639\u060c \u062d\u062a\u0649 \u0646\u062a\u0645\u0643\u0646 \u0628\u0633\u0647\u0648\u0644\u0629 \u0645\u0646 \u0639\u0631\u0636 \u062c\u0645\u064a\u0639 \u0642\u064a\u0645 VIF \u0645\u0631\u0629 \u0648\u0627\u062d\u062f\u0629. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0641\u0647\u0648 \u0645\u062e\u0637\u0637 \u0645\u0641\u064a\u062f \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0645\u062b\u0627\u0644.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0627\u0639\u062a\u0645\u0627\u062f\u064b\u0627 \u0639\u0644\u0649 \u0642\u064a\u0645\u0629 VIF \u0627\u0644\u062a\u064a \u062a\u0639\u062a\u0628\u0631\u0647\u0627 \u0639\u0627\u0644\u064a\u0629 \u062c\u062f\u064b\u0627 \u0628\u062d\u064a\u062b \u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u0636\u0645\u064a\u0646\u0647\u0627 \u0641\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u060c \u064a\u0645\u0643\u0646\u0643 \u0627\u062e\u062a\u064a\u0627\u0631 \u0625\u0632\u0627\u0644\u0629 \u0628\u0639\u0636 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0648\u0645\u0639\u0631\u0641\u0629 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 R-squared \u0627\u0644\u0645\u0642\u0627\u0628\u0644\u0629 \u0623\u0648 \u0627\u0644\u062e\u0637\u0623 \u0627\u0644\u0642\u064a\u0627\u0633\u064a \u0644\u0644\u0646\u0645\u0648\u0630\u062c \u0642\u062f \u062a\u0623\u062b\u0631\u062a.<\/span><\/p>\n<h3 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\"><strong>\u062a\u0635\u0648\u0631 \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637\u0627\u062a \u0628\u064a\u0646 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639<\/strong><\/span><\/h3>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0644\u0641\u0647\u0645 \u0633\u0628\u0628 \u0627\u062d\u062a\u0648\u0627\u0621 \u0645\u062a\u063a\u064a\u0631 \u0627\u0644\u062a\u0648\u0642\u0639 \u0639\u0644\u0649 \u0642\u064a\u0645\u0629 VIF \u0639\u0627\u0644\u064a\u0629 \u0628\u0634\u0643\u0644 \u0623\u0641\u0636\u0644\u060c \u064a\u0645\u0643\u0646\u0646\u0627 \u0625\u0646\u0634\u0627\u0621 \u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0631\u062a\u0628\u0627\u0637 \u0644\u0639\u0631\u0636 \u0645\u0639\u0627\u0645\u0644\u0627\u062a \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637 \u0627\u0644\u062e\u0637\u064a\u0629 \u0628\u064a\u0646 \u0643\u0644 \u0632\u0648\u062c \u0645\u0646 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a:<\/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 style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u062a\u0630\u0643\u0631 \u0623\u0646 \u0645\u062a\u063a\u064a\u0631 <em>disp<\/em> \u0644\u0647 \u0642\u064a\u0645\u0629 VIF \u0623\u0643\u0628\u0631 \u0645\u0646 8\u060c \u0648\u0647\u064a \u0623\u0639\u0644\u0649 \u0642\u064a\u0645\u0629 VIF \u0628\u064a\u0646 \u0643\u0627\u0641\u0629 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639 \u0641\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c. \u0645\u0646 \u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637\u060c \u064a\u0645\u0643\u0646\u0646\u0627 \u0623\u0646 \u0646\u0631\u0649 \u0623\u0646 <em>disp<\/em> \u064a\u0631\u062a\u0628\u0637 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0645\u0639 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062b\u0644\u0627\u062b\u0629 \u0627\u0644\u0623\u062e\u0631\u0649\u060c \u0648\u0647\u0648 \u0645\u0627 \u064a\u0641\u0633\u0631 \u0633\u0628\u0628 \u0627\u0631\u062a\u0641\u0627\u0639 \u0642\u064a\u0645\u0629 VIF \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0647.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u0642\u062f \u062a\u0631\u063a\u0628 \u0641\u064a \u0625\u0632\u0627\u0644\u0629 <em>disp<\/em> \u0645\u0646 \u0627\u0644\u0646\u0645\u0648\u0630\u062c \u0644\u0623\u0646 \u0642\u064a\u0645\u0629 VIF \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0647 \u0639\u0627\u0644\u064a\u0629 <em>\u0648\u0644\u064a\u0633\u062a<\/em> \u0630\u0627\u062a \u062f\u0644\u0627\u0644\u0629 \u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0639\u0646\u062f \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0623\u0647\u0645\u064a\u0629 0.05.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <span style=\"color: #000000;\">\u0644\u0627\u062d\u0638 \u0623\u0646 \u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637 \u0648VIF \u0633\u062a\u0632\u0648\u062f\u0627\u0646\u0643 \u0628\u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0645\u0645\u0627\u062b\u0644\u0629: \u0643\u0644\u0627\u0647\u0645\u0627 \u064a\u062e\u0628\u0631\u0643 \u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u0645\u062a\u063a\u064a\u0631 \u0645\u0631\u062a\u0628\u0637\u064b\u0627 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0628\u0645\u062a\u063a\u064a\u0631 \u0648\u0627\u062d\u062f \u0623\u0648 \u0623\u0643\u062b\u0631 \u0641\u064a \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631.<\/span><\/p>\n<p style=\";text-align:right;direction:rtl\"> <strong><span style=\"color: #000000;\">\u0642\u0631\u0627\u0621\u0629 \u0645\u062a\u0639\u0645\u0642\u0629:<\/span><\/strong><br \/> <strong>\u062f\u0644\u064a\u0644 \u0644\u0644\u062a\u0639\u062f\u062f\u064a\u0629 \u0627\u0644\u062e\u0637\u064a\u0629 \u0648VIF \u0641\u064a \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631<br \/> \u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 R-squared \u0627\u0644\u062c\u064a\u062f\u0629\u061f<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u062a\u062d\u062f\u062b \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u062e\u0637\u064a\u0629 \u0627\u0644\u0645\u062a\u0639\u062f\u062f\u0629 \u0641\u064a \u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u0639\u0646\u062f\u0645\u0627 \u064a\u0631\u062a\u0628\u0637 \u0645\u062a\u063a\u064a\u0631\u0627\u0646 \u0623\u0648 \u0623\u0643\u062b\u0631 \u0645\u0646 \u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0642\u0639 \u0627\u0631\u062a\u0628\u0627\u0637\u064b\u0627 \u0648\u062b\u064a\u0642\u064b\u0627 \u0628\u0628\u0639\u0636\u0647\u0645\u0627 \u0627\u0644\u0628\u0639\u0636\u060c \u0628\u062d\u064a\u062b \u0644\u0627 \u064a\u0648\u0641\u0631\u0627\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0641\u0631\u064a\u062f\u0629 \u0623\u0648 \u0645\u0633\u062a\u0642\u0644\u0629 \u0641\u064a \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631. \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u062f\u0631\u062c\u0629 \u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637 \u0639\u0627\u0644\u064a\u0629 \u0628\u0645\u0627 \u064a\u0643\u0641\u064a \u0628\u064a\u0646 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a\u060c \u0641\u0642\u062f \u064a\u062a\u0633\u0628\u0628 \u0630\u0644\u0643 \u0641\u064a \u062d\u062f\u0648\u062b \u0645\u0634\u0643\u0644\u0627\u062a \u0639\u0646\u062f \u0645\u0644\u0627\u0621\u0645\u0629 \u0648\u062a\u0641\u0633\u064a\u0631 \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 . \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0623\u0643\u062b\u0631 \u0634\u064a\u0648\u0639\u064b\u0627 \u0644\u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 [&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":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0643\u064a\u0641\u064a\u0629 \u062d\u0633\u0627\u0628 \u0639\u0627\u0645\u0644 \u062a\u0636\u062e\u0645 \u0627\u0644\u062a\u0628\u0627\u064a\u0646 (VIF) \u0641\u064a R - \u0639\u0644\u0645 \u0627\u0644\u0625\u062d\u0635\u0627\u0621<\/title>\n<meta name=\"description\" content=\"\u064a\u0634\u0631\u062d \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a \u0643\u064a\u0641\u064a\u0629 \u062d\u0633\u0627\u0628 VIF \u0641\u064a R\u060c \u0648\u0647\u0648 \u0645\u0642\u064a\u0627\u0633 \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647 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