fixed-effect model matrix is rank deficient so dropping 5 columns / coefficients (lme4 package) afte...

Plot of predicted probabilities of interaction term with sjPlot - CI level does not change...

Multiple imputation for longitudinal data with 2l.pan or panImpute (mice package in R)...

specifying group-level effects in brms...

How does the metafor aggregate() function affect single-outcome studies in a multi-level meta-analys...

Adding random noise to a group level variable...

R mice package error: "Error in .imputation.level2 ... clusteres with partially missing level-2...

sjplot plot_model with own color palette...

Interactions and Rlang: Error: ! `class` must be a character vector, not a list...

Pandas: how to deal with data associated with higher levels of hierarchical index?...

Multilevel modeling for repeated measures data - time and lagged variables...

Mediation package R - continuous treatment variable: How to define treatment and control values?...

lme4 1.1-27.1 error: pwrssUpdate did not converge in (maxit) iterations...

Looping over multiple multilevel ordered logits, tidying the results, dropping one observation at a ...

Create a time varying and time invariant contextual variables in r...

Resampling multilevel data by group...

compare different multi level regressions...

Multilevel model using glmer: Singularity issue...

Create a new Variable of values of another variable-multilevel regression...

Multilevel Regression with 3 Levels...

How to obtain monotonic effect of ordered factor predictor in lme4 package...

Metafor updated degrees of freedom...

How do I sum on the outter most level of a multi index (row)?...

Uploading a .dat file into R to use the lme() function, having trouble...

Filter columns by values in a row in Pandas...

Multilevel R squared error in package 'mitml'...

Generalized Additive Mixed Model (GAMM) in R mgcv Package Formula Implementation for Grouping Variab...

Arrage dataframe based on the data presence in columns in multilevel dataframe...

Looping over variables for multilevel regression produces type error...

Grouping Variables in Multilevel Linear Models...