R 中二元逻辑回归的多重共线性测试？

Question

如何在 R 中测试二元 Logistic 回归的多重共线性？

我尝试了相关表，但我不知道该怎么做。

Answer 1

以下是如何在 R 中测试多重共线性：

library(car)

# Begin by calculating the correlation matrix for your independent variables
correlation_matrix <- cor(your_data[, c("var1", "var2", "var3")])

# Calculate VIF for your logistic model
vif_values <- vif(your_logistic_model)

# Examine the VIF values. VIF values greater than 5 are often considered indicative of high multicollinearity.