Questions tagged [variance-inflation-factor]
4 questions
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How to manually calculate Variance Inflation Factor (VIF)?
I would like to manually calculate the Variance Inflation Factor (VIF) for mtcars dataset.
When I do it using the function from package I have the following result:
install.packages('car')
library(car)
fit <- lm(mtcars[,1] ~ .,…
Lara
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R: Error in vif.default(m) : model contains fewer than 2 terms
When I fit a polynomial regression model in R, if I use the function poly() and then try to get the variance inflation factors using vif() I get the following error:
y = c(0.22200,0.39500,0.42200,0.43700,0.42800,0.46700,0.44400,0.37800,0.49400,
…
s5s
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Is there a way to derive GVIF in Jamovi?
Apparently the car package vif function and performance package check_collinearity function both calculate generalized variance inflation factor (GVIF) automatically if a categorical variable is entered into a regression. As an example, this can be…
Shawn Hemelstrand
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VIF function returning error message
I'm trying to perform a VIF on a multivariate regression model, but when I ran the vif function in r I get an error.
Code and error below:
vif(analys3.lm)
Error in if (names(coefficients(mod)[1]) == "(Intercept)") { :
argument is of length…
Barbara
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