All Questions
4 questions
3
votes
5
answers
2k
views
Multiple linear regression with lm() in R, why is the intersection dependent on the name of the "first" country
I have a question about the function lm() used for multiple linear regression analysis.
Context: We have a dataset (that I cannot share) where $y$ is the proportion ...
Louise
2
votes
2
answers
94
views
Recreate `lm` Categorical Regression
Consider the code, which contains regression using lm of two categorical and one continuous variables without interaction using data from the correct model:
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- 639
0
votes
1
answer
644
views
Sum contrast model intercept for multiple factors
How is the intercept calculated for a linear model with multiple factors using contr.sum. From what I've read the intercept is equal to the "grand mean", which as ...
- 1
0
votes
0
answers
34
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Why does removing the offset change the F-statistic of an anova model in R?
When a linear model with only a single categorical variables is defined without an offset, the F-statistic reported by summary() and ...
- 1