Questions tagged [posthoc]
181 questions
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Post-Hoc Statistical Analysis for Repeated Measures ANOVA Treatment within Time Effect
I am having trouble finding a post hoc test to decipher at what "Session" or time I have a treatment within session affect.
This is my data:
TR SESSION MAC FISHD ID
1 1 1 3.285714286 1
2 1 2 0.571428571 2
2 1 3 …
Berin
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Post hoc comparisons for three-way interaction effect for linear mixed models (lme4)
I want to conduct post hoc comparisons for a model with a three-way interaction:
FullModel <- lmer(CIVADmc ~ 1 + Factor1 * Factor2 * Factor3 + (1|ID) + (1 | Item), data=EXP3)
I tried the following, but this does not work.
summary(glht(FullModel,…
Katharina Voigt
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How to order groups when using HSD.test() from the Agricolae package?
my question about displaying the homogeneous subsets after a Tukey HSD test is already been asked in the past (see https://stats.stackexchange.com/questions/31547/how-to-obtain-the-results-of-a-tukey-hsd-post-hoc-test-in-a-table-showing-groupe, at…
Jelle
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R: One Way Anova and pairwise post hoc tests (Turkey, Scheffe or other) for numerical columns
I have three columns in the dataframe dune (below - bottom of the page) describing the % cover of marram grass recorded for three different sand dune ecosystems:
(1) Restored;
(2) Degraded; and
(3) Natural;
I have performed two different One Way…
Alice Hobbs
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Anova-post hoc-no normal distribution
i want to apply Anova to a no-normal response variable, verify if residuals are normal and use post-hocs.How can i make it?
Helly
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Multiple comparison for repeated measures ANOVA in matlab
I want to find possible differences between different conditions. I have n subjects for which I have a mean value for every condition for every subject respectively. The values between subjects vary a lot, that's why I wanted to perform a repeated…
phill.short
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Run multcompLetters on data.frame with 2 grouping columns
I am running a Tukey's test on sub-groups in a melted data.frame. The result shows pairwise comparisons that are grouped by two columns: CLASS and comparison. I am now trying to use multcompLetters to obtain a compact letter display, however this…
J.Con
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About post hoc test in the package "agricoale"
I need a little of help. The function kruskal in the package "agricolae" seems to use a post hoc test. Unfortunately I cant find which post hoc test is in the manuals (even in the spanish one)nor the forums. The man in charge of that package doesnt…
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How to exclude unwanted comparisons in two-way ANOVA in R
I have asked about this already on stats.exchange (original question), now I re-posted the same content here - hoping to get help from a wider population.
I would like to know the way to exclude all the unwanted pairs from the output generated…
katie lu
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Post hoc tukey in R
I have done a ANOVA on 92 proteins to test difference between groups at the same time using
x <- data.frame(p.value=sapply(df[,2:93], function(i) summary(aov(i ~ df$X.Alcohol))[[1]][["Pr(>F)"]][[1]]))
pAlcohol<-x[x$p.value < 0.05/92,,drop=F]
To…
PrincessJellyfish
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TurkeyHSD on Anova in R includes unintended comparisons
I have a dataset partially shown below. I have used an anova to look at the difference between genders in the value with region as a covariate. However, when using TukeyHSD for multiple comparisons correction I find that is shows more comparisons…
Jon
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Contrasts in lmer
I have specified a mixed effect linear model with lmer and I don't know how to specify the contrasts for it. In my data I have a Condition with two levels, while in each Condition I have 20-20 Players. In each condition I present 7 Scenarios which…
Pio
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2 answers
Anova posthoc labels on bwplot from lattice in R
I would like to add significance labels following out of post-hoc analysis to box-and-whiskerplots from the function bwplot from the lattice package in R. I have read the ggplot2-based solution in Posthoc labels on anova boxplot in R however this…
FM Kerckhof
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How to do Tukey's HSD post-hoc test after 1-way RM ANOVA in SAS?
I run the following lines:
DATA abc;
INPUT AA BB CC DD EE;
CARDS;
...
;
RUN;
PROC GLM DATA = abc;
MODEL AA BB CC DD EE = / NOUNI;
REPEATED conditions 5 (1 2 3 4 5) / PRINTE;
MEANS / TUKEY ALPHA = 0.05;
RUN;
But the MEANS…
abc
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Dunnett Test with two different factors in R
I am trying to conduct Dunnett test. I have two different factors: 1) group, 2) condition
I can run the code with one factor using this code
Dunnett <- glht(anova_growth,
linfct = mcp(group= "Dunnett"))
summary(Dunnett)
However I…
mervet
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