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Error: number of observations (=337) <= number of random effects (=344) for term (1 + Predictor 2 | Grouping variable); the random-effects parameters and the residual variance (or scale parameter) are probably unidentifiable
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1
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123
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May 2, 2025
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Issue with lme4 and Matrix in RStudio
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1
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363
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March 4, 2025
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Estimate "manually" random effects and predict a new variable using a mixed model with -lme4- ?
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1
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330
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September 1, 2024
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Convergence warning
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1
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418
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July 25, 2024
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Error in loading "lme4" and "Matrix" packages to create a generalized linear mixed-effects model
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5
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9776
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March 12, 2024
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Suspicious values for a GLMM model
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6
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1342
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February 19, 2024
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Error with random effect: lmer
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3
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1549
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March 16, 2024
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Residuals assumptions in glmm not verified! Help
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2
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799
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January 10, 2024
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Error in initializePtr() : function 'cholmod_factor_ldetA' not provided by package 'Matrix'
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2
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17569
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January 6, 2024
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Advice on a model with 4 timepoints and 58 individuals
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1
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340
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January 27, 2024
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Probleme de convergence d'un modele poisson a effets mixtes
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2
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442
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December 26, 2023
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Fatal error - Running lmer
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2
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1276
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December 20, 2023
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Why is R-Studio Only Showing Comments from Some Package Functions, but not all?
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1
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758
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November 24, 2023
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lmer wrong fit residuals
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13
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1104
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December 13, 2023
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What is the difference between R and SPSS in estimating random effects?
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2
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1011
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November 5, 2023
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Installing minqa on Mac
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4
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963
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October 24, 2023
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LME output changing overnight, can't restore
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3
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605
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October 15, 2023
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How to get the Confidence intervals CI with upper and lower limits in for model estimates in Lmer R ?
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1
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936
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September 21, 2023
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Convert mixed linear model from lmer to lme to create model with equal variances for fixed effect
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1
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825
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September 29, 2023
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General linear mixed model effect with error
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3
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4164
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August 21, 2023
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Issues with powerSim: Simulating " new levels detected in new data: 120, 125, 336, 347"
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2
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851
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July 24, 2023
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one_sided confidence intervals and one sided p-value using mixed models in r
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1
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508
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June 15, 2023
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Needing help on Linear Mixed Models
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2
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859
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May 19, 2023
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Mixed model with time (baseline vs follow up) as a within subjects factor and group (injured vs healthy) as a between groups factor
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2
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1565
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May 8, 2023
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How to remove the reference group when doing a GLM
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1
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764
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May 25, 2023
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Non-significance after mean-centering
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1
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534
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May 4, 2023
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Nonlinear modeling using nls()
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2
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940
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May 7, 2023
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How to set up the contrasts for comparison between two contrasts (ie. difference of the difference)
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1
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633
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March 25, 2023
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Linear mixed effect model with years as random effect
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2
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1114
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February 22, 2023
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why do I not have an intercept in glmer model (fixed effects)?
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3
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1584
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January 31, 2023
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