0
votes
0answers
84 views

How to select a model in quasi-poisson GLM with interactions using drop1 command?

I want to evaluate the effect of three factors (one categorical, and the other two continuous) on the response variable, which is a count data. I have performed 7 candidate GLM models with ...
0
votes
0answers
17 views

How to interpret the selection of a variable in a model (GLM) when spatialautocorrelation is included?

This is a pretty straightforward question. I am comparing outputs of two models (binomial GLM) one including environnmental-only (ENV) variables and one including environmental and spatial variables ...
1
vote
0answers
445 views

How to select the best variables by RandomForest in R?

I have a table of mRNA levels of my target gene and it's transcription factors in many different condition. What I want to do is to select the most important ...
1
vote
2answers
999 views

How to integrate principal components with GLM?

How would I integrate the output of a principal components analysis with a GLM (assuming the PCA is used for variable selection for the GLM)?
3
votes
4answers
1k views

Proper variable selection method for glm

I have a mixed model with a continuous outcome variable and a certain number of predictors. Some need to be included in the model no matter what (sex, age, and a "main factor"), and others must be ...
8
votes
3answers
2k views

How to apply LASSO to IRLS (logistic regression)?

I have programmed a logistic regression using the IRLS algorithm. I would like to apply a LASSO penalization in order to automatically select the right features. At each iteration, the following is ...