mixed-models

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How can I create a day number variable in R based on dates?

Calculating Day Numbers in R A Comprehensive Guide Working with dates in R often involves the need to convert them into numerical representations particularly w

How can I create a day number variable in R based on dates?

Using pmap to parallelize fitting linear mixed models in Julia

Accelerating Linear Mixed Model Fitting with pmap in Julia Linear mixed models LMMs are powerful tools for analyzing data with complex dependencies but fitting

Using pmap to parallelize fitting linear mixed models in Julia

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

Crossed random effects in Python with Statsmodels

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

Mixed-effects models: Does lmer function really do listwise deletion?

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

df = 1 for an intercept-only linear mixed model, how to fix? (R)

Appropriate Statistical Test for pre to post data with imputed data sets?

Understanding Appropriate Statistical Tests for Pre to Post Data with Imputed Data Sets In statistical analysis determining the right test to apply to your data

Appropriate Statistical Test for pre to post data with imputed data sets?

Multinomial mixed models: glmmTMB vs. mblogit. Why does glmmTMB works and mblogit gives the 'a' is computationally singular error?

Understanding Multinomial Mixed Models glmm TMB vs mblogit In the realm of statistical modeling multinomial mixed models serve an important role when dealing wi

Multinomial mixed models: glmmTMB vs. mblogit. Why does glmmTMB works and mblogit gives the 'a' is computationally singular error?

Confounding Variable in Regression Model: Simpson's Paradox

Simpsons Paradox The Surprising Power of Hidden Variables Imagine you re trying to determine if a new medication is effective in treating a particular illness Y

Confounding Variable in Regression Model: Simpson's Paradox

Omnibus effect size r2glmm

Understanding Omnibus Effect Sizes in Mixed Models with r2glmm In the realm of statistical analysis effect sizes are crucial for understanding the practical sig

Omnibus effect size r2glmm

How do I correctly specify nesting in the sommer R package?

Mastering Nesting in the sommer R Package A Guide for Mixed Effects Models The sommer package in R is a powerful tool for fitting mixed effects models particula

How do I correctly specify nesting in the sommer R package?

Converting a SAs nol linear mixed model (nlmixed) to R nlme

Bridging the Gap Converting SAS NLMIXED to R nlme for Non Linear Mixed Effects Models This article explores the process of converting a SAS non linear mixed mod

Converting a SAs nol linear mixed model (nlmixed) to R nlme

Getting results output for random factors in glmer()

Getting Results Output for Random Factors in glmer Introduction Generalized linear mixed effects models GLMMs are powerful tools for analyzing data with both fi

Getting results output for random factors in glmer()

Sommer Package: mmer prediction error because of singular matrix

Sommer Package Sommer Prediction Error Because of Singular Matrix Understanding the Error You re encountering a LAPACK dgetrf matrix is exactly singular error i

Sommer Package: mmer prediction error because of singular matrix