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Questions tagged [emmeans]

Refers to estimated marginal means. These are means predicted by statistical models. A package in R called emmeans is dedicated to predicting these estimates.

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interpret estimated marginal means (emmans aka lsmeans): negative response values

I am working on a a model with lmer where I would like to get estimated marginal means with the emmeanslibrary. This is my dataframe: df <- structure(list(treatment = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,…
BAlpine
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Tukey test after LMM keeping contrasts

I want to test a 2x3 factorial design and contrasted the variables like this library(lme4) library(emmeans) my.helmert = matrix(c(2, -1, -1, 0, -1, 1), ncol = 2) contrasts(Target3$mask) = my.helmert …
Laura S
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Tuckey correction for planned contrasts with emmeans and pairs() in R

I have a mixed design with 1 between factor (Group: ASD, CTR) and three within factors (Time: pre, post; Trustee: good, bad; Step: 1,2,3,4,5). I performed a mixed model anova (type III) with aov_car: anova <- aov_car(rating ~ time*trustee*step*group…
claudia
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R emmeans CLD on a predefined prediction grid

I'm running a regression model with multiple factor and continuous predictors. I need to follow up with multiple comparisons. Following this post, I'm able to run the emmeans correctly, and I seem to get appropriate pairwise comparisons. However, I…
user2602640
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How to successfully download the old version of lsmeans package

I'd like to download version 2.26-3 of lsmeans package. An error occurs when I try to download an old version of the lsmeans package. I've tried two options for downloading the old versions of lsmeans. Option 1) path<-…
SkipT
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post hoc - comparison of point on slope to another group

I have a model that combines a dummy and a continuous variable to describe an outcome following a disturbance. So if there was a disturbance, I have time measurements at times 1:16 following the disturbance. If there was no disturbance in the recent…
user2602640
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Can I use emmeans with LME model?

I am using LME model defined like: mod4.lme <- lme(pRNFL ~ Init.Age + Status + I(Time^2), random= ~1|Patient/EyeID,data = long1, na.action = na.omit) The output is: > summary(mod4.lme) Linear mixed-effects model fit by REML Data: long1 …
Lili
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Emmeans in LME and adjusting for "time since"

I would like to reassure myself that what I'm doing is right. I am applying an LME model to my data. And I would like to know if the use of EMMEANS to get multiple comparisons is right. emmeans(mod1.lme, pairwise ~ Status, adjust="bonferroni") The…
Lili
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Problem analysing LME outcomes when I reduce the number of factors in a variable

I have a variable with 4 factors that I put into the LME model as an independent variable (Status). The outcome in lme gives me 1 factor as a reference value and the other 3 referenced to that one. I have tried to apply 'emmeans' to get multiple…
Lili
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Different Kenward-Roger degrees of freedom between pbkrtest and emmeans

The Days variable of the sleepstudy dataset is numerical. Therefore it corresponds to a slope in the model M1: Reaction ~ Days + (1|Subject). Let's test the Days effect by comparing M1 to M0: Reaction ~ (1|Subject) with the pbkrtest…
Stéphane Laurent
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R: post-hoc comparisons using estimated marginal means but not assuming equal variances

I am trying to use R to run post-hoc comparisons following a significant interaction for a mixed-method Anova. I would like to do the post-hoc similar to SPSS [EMMEANS=TABLES(Group*time) COMPARE(Group) ADJ(BONFERRONI)], using estimated marginal…
CRI
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specs argument in emmeans function with R

I'm trying to figure out to do posthoc test in R with emmeans function from emmeans package. However, I couldn't find out what should I put in specs argument. as far as I understand it is where I put the variables that I want to contrast (my…
Erdem
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How are computed the confidence intervals of emmeans when adjusted with Tukey method?

I have troubles to get back to the "CL" values given by the emmeans package. My first goal was to perform a kind of power study : I am working on plants and I want to see how much I can improve my experimental design for next season to have more…
Maxime
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estimated marginal means of a MANCOVA in R

I have constructed a model that accounted for a covariate. There are two dependent variables ("A","B") and two independent variables ("C", "D") and one continuous covariate ("E"). I ran a MANCOVA as follows: x<-cbind(A,B) #combining dependent…
Douglas
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multiply text in Emmet using any loop

How do you multiply text in Emmet? For example, div{Some Text} where Some Text repeats in div div{Some Text*3} and div{Some Text}*3 do not work. should output
Some Text Some Text Some Text
user9371847
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