Questions tagged [glm]
The glm tag has no usage guidance.
28 questions
5
votes
2
answers
177
views
How to interpret two continous variables output using GAM?
I really need help with GAM. I have to find out whether association is linear or non-linear by using GAM. The predictor variable is temperature at lag0 and the output is cardiovascular admissions (...
CommunityBot
- 1
2
votes
3
answers
3k
views
Can GLM( generalized linear method) handle the collinearity between the predictor variables in a regression-analysis?
I'm a beginner in Machine learning and I've studied that collinearity among the predictor variables of a model is a huge problem since it can lead to unpredictable model behaviour and a large error. ...
1
vote
1
answer
101
views
Predictive model to maximize sum of dependent variable?
I am trying to classify cars for a towing company. Junky cars earn more when sent to the junkyard, and the more valuable cars should earn more at the auction, despite the auction fee. Creating a ...
CommunityBot
- 1
7
votes
1
answer
450
views
How to choose between different models with similar results? RF, GLM and XGBoost
I am a medical doctor trying to make prediction models based on a database of approximately 1500 patients with 60+ parameters each.
I am dealing with a classification problem (mortality at 1, 3, 6 and ...
- 2,772
0
votes
1
answer
166
views
Interpreting interaction term coefficient in GLM/regression
I'm a psychology student and trying come up with a research plan involving GLM. I'm thinking about adding an interaction term in the analysis but I'm unsure about the interpretation of it. To make ...
0
votes
0
answers
1k
views
NaN, inf or invalid value detected in endog, estimation infeasible error when training statsmodels GLM model
I am trying to build a GLM model (poisson family) using python statsmodels package on train data.
The data I have contains categorical values as exogenous variables and numerical values for my target (...
1
vote
0
answers
69
views
Sudden jumps in accuracy with logistic regression and bag of words : "glm.fit: algorithm did not converge"
I work on a bag of words, on the Toxic Comments Classifications challenge. The challenge is closed but the dataset is very nice to learn.
I use R, tf-idf, tm, and logistic regression.
I have a strange ...
- 111
1
vote
0
answers
79
views
Difficulty understanding the difference between Poisson, Quasi-Poisson, and Negative Binomial models
I will try to keep this short.
As an assignment for my GLM course, we were given a dataset on the # of homicide victims a person knows, as well as the race of the person. The main idea is to answer ...
- 33
0
votes
0
answers
265
views
how to describe a decrease in sales
Hypothetically, if your company's sales had dropped significantly in 2020, what approach would you take to describe the cause? can you build a model to predict the decrease (between 2019 and 2020 for ...
1
vote
1
answer
5k
views
Error while trying glmnet() in R: "Error in storage.mode(xd) <- "double" : 'list' object cannot be coerced to type 'double'"
I'm trying to create a logistic regression model using Ridge, this is the code:
glmnet(X_Train, Y_Train, family='binomial', alpha=0, type.measure='auc')
And this ...
- 7,776
3
votes
0
answers
1k
views
How to retrieve results summary from statsmodels GLM with regularization?
I'm trying to fit a GLM to predict continuous variables between 0 and 1 with statsmodels. Because I have more features than data, I need to regularize. ...
- 131
4
votes
1
answer
95
views
Alternative to VGAM for Zero Truncated Negativ Binomial GLM in R
Is there an alternative to the vgam Package to do a zero truncated negativ Binomial GLM in R?
CommunityBot
- 1
1
vote
0
answers
100
views
Problem in performing LOOCV
I am trying to run LOOCV on my regression model. I tried to run it in r and encountered the following warning message:
...
- 298
1
vote
1
answer
360
views
Fitting glm without explicit declaration of each covariate
When I fit a linear model with many predictor variables, I can avoid writing all of them by using . as follows:
...
- 27.5k
1
vote
0
answers
49
views
2
votes
0
answers
825
views
LASSO Regression using Panel Data
I have panel data for 3 countries, ranging over 3 years. The dataset is called CarProduction
...
- 121
2
votes
1
answer
218
views
Select behavior dependant with other factors and its formalization
I'm studying occurence of Behavior11, Behavior12,Behavior2,...
- 311
1
vote
1
answer
161
views
Combining outputs of ridge regression models?
I am facing an issue where I have 7 sets of different variables/columns/predictors.
I am trying to predict same target variable and I want to observe the importance/effect of all the sets according ...
- 1,811
1
vote
1
answer
608
views
r glm - Error in names(coef) <- xnames only for 2 columns in data
I am getting the below error when i run the R code for glm():
...
- 1,821
1
vote
1
answer
88
views
Changing reference class in imbalanced data drastically affects the error rate
Working on a binary classification problem that tries to predict customer churn, the data set is imbalanced with 2000 observations of non-churn cases vs 600 observations of churn cases.
On using GLM ...
- 1,551
2
votes
2
answers
1k
views
How do I compare coefficients from my glm when I have more than one factor variable in my formula?
I am trying to model a binary outcome in R that has many independent variables. 5 of the Ivs are factors with more than two levels. When I try to remove the intercept it only does it for one of the ...
- 101
3
votes
1
answer
267
views
Searching interactions with RandomForest and/or GBM
I'm trying to explain a count variable and a continious variable > 0 with GLM, using R.
In order to improve the quality of the regression, I want to add some interactions that can be useful for the ...
CommunityBot
- 1
13
votes
4
answers
17k
views
Is GLM a statistical or machine learning model?
I thought that generalized linear model (GLM) would be considered a statistical model, but a friend told me that some papers classify it as a machine learning technique. Which one is true (or more ...
- 399
-1
votes
1
answer
334
views
R how to find the top key parameters contribute to the response var change in two tables?
For example, if I create two tables, both contain multiple kinds of data: numeric (integer), numeric (continuous), and factor (character) like below:
...
- 571
2
votes
0
answers
39
views
Outputting risk groups for a logistic regression model
I have a problem with outputting the terms for a logistic regression model in R. For a given list of independent values, say list l of terms {w,y,z} to determine dependent variable {x}, I want to ...
2
votes
0
answers
114
views
How can I use idh and random when I use hupossion in mcmcglmm?
Here is my problem: I need to use hupossion in MCMCglmm package. Here is my prior:
...
- 207
2
votes
1
answer
12k
views
Extracting model equation and other data from 'glm' function in R
I've made a logistic regression to combine two independent variables in R, using pROC package and I obtain this:
...
- 6,543
3
votes
2
answers
210
views
Extrapolating GLM coefficients for year a product was sold into future years?
I've fit a GLM (Poisson) to a data set where one of the variables is categorical for the year a customer bought a product from my company, ranging from 1999 to 2012. There's a linear trend of the ...
- 6,634