Crossed random effects in Python with Statsmodels Understanding and Implementing Crossed Random Effects in Python with Statsmodels The Challenge Modeling Complex Data Structures Imagine you re analyzing data on 3 min read 04-10-2024 41
Mixed-effects models: Does lmer function really do listwise deletion? Understanding Mixed Effects Models Does the lmer Function Really Use Listwise Deletion Mixed effects models are a powerful tool for analyzing complex data struc 3 min read 27-09-2024 51
How to Plot Difference Smooth with confidence Intervals using gamm4 in R How to Plot Difference Smooth with Confidence Intervals Using gamm4 in R In statistical modeling one often encounters the challenge of visualizing the effects o 3 min read 25-09-2024 55
"Error in initializePtr(): function 'cholmod_factor_ldetA' not provided by package Matrix" gets displayed while trying to generate mixed effects model Understanding the cholmod factor ldet A Error in Mixed Effects Models When working with statistical models in R particularly mixed effects models you may encoun 2 min read 20-09-2024 93
implementing an overall Wald test for a glmer model Implementing an Overall Wald Test for a GLMER Model In the world of statistical analysis mixed effects models are powerful tools for analyzing data that involve 3 min read 20-09-2024 60
df = 1 for an intercept-only linear mixed model, how to fix? (R) Understanding and Fixing the df 1 Problem in Intercept Only Linear Mixed Models in R When working with linear mixed models in R you may encounter a situation wh 2 min read 19-09-2024 47
I have multiple lmer models, how to adjust the p-values for multiple testing? Adjusting P values for Multiple Testing in LMER Models When conducting statistical analysis using multiple linear mixed effects regression LMER models a common 3 min read 18-09-2024 46
Pre-specifying Random Effect Covariance Matrix in glmer Pre specifying Random Effect Covariance Matrix in glmer In mixed effects modeling using the Generalized Linear Mixed Models glmer function from the lme4 package 2 min read 15-09-2024 55
“Error in initializePtr() : function 'cholmod_factor_ldetA' not provided by package 'Matrix'” when applying lmer function Resolving the Error Error in initialize Ptr function cholmod factor ldet A not provided by package Matrix When Using the lmer Function When working with mixed e 2 min read 15-09-2024 111
bootstrap for model estimation with a created function Bootstrap for Model Estimation Using a Custom Function In statistics model estimation is crucial for making predictions and understanding relationships within d 3 min read 14-09-2024 50
Extract the scale and shape parameter of Gamma-distribution GLMER model to calculate the prob. densities of unseen data Extracting Scale and Shape Parameters from a Gamma Distribution GLMER Model for Probability Densities of Unseen Data When working with Generalized Linear Mixed 2 min read 14-09-2024 54
Errors in glmer : Error in eval(expr, envir, enclos) : cannot find valid starting > values: please specify some Error in eval expr envir enclos cannot find valid starting values please specify some in glmer Troubleshooting Guide When working with mixed effects models in R 4 min read 06-09-2024 47
Applying lognormal distribution to my data using glm function in R Modeling Your Data with a Lognormal Distribution in R A Deep Dive This article explores the use of the lognormal distribution for modeling data in R focusing on 3 min read 05-09-2024 51
Add Random Effects to Stargazer table Displaying Random Effects in Regression Tables with Stargazer A Comprehensive Guide When working with mixed effects models understanding the variance explained 2 min read 01-09-2024 48
Factor Random Slope Models Showing Referece as Random Effects in Glmer Logit Understanding Random Slopes and Reference Levels in glmer Models When working with mixed effects models in R using the lme4 package understanding how reference 2 min read 01-09-2024 56
R - 95 CI for rmse from lmer Understanding and Calculating 95 Confidence Intervals for RMSE in Rs lmer Models This article delves into the crucial process of obtaining 95 confidence interva 2 min read 01-09-2024 65
Degrees of Freedom in Emmeans Understanding Degrees of Freedom in emmeans and How to Handle Large Datasets When working with linear mixed effects models in R using the emmeans package resear 2 min read 31-08-2024 46
Problem with factors with a linear model lmer Understanding Factor Order in Linear Mixed Models with lmer When working with linear models particularly in mixed models using the lmer function from the lme4 p 3 min read 31-08-2024 52