What type of multiple comparisons is used in multcompare?
3 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Hi everybody,
I've used the following function after performing Kruskal Wallis test:
c = multcompare(KW_stats(1,1).name)
Does anyone know what type of multiple comparisons is used? FDR, Bonferroni?
Best,
Eric
0 Commenti
Risposte (1)
Qu Cao
il 23 Ago 2016
Modificato: Qu Cao
il 23 Ago 2016
Hi Eric,
You can specify the type of comparison as documented at the following link:
The default type is 'tukey-kramer'.
Thanks,
Qu
1 Commento
Lingyun GUO
il 10 Lug 2020
Modificato: Lingyun GUO
il 10 Lug 2020
Dear Cao:
I want to ask :
I have 3 sets of data. It has been organized into two columns The first column is basedata; The second column is the grouping basis.
G1(:,1)=rand(30,1);
G1(:,2)=1;
G2(:,1)=rand(32,1);
G2(:,2)=2;
G3(:,1)= rand(30,1);
G3(:,2)=3;
X=[G1;G2;G3]; % size is (92*2).
[P,anovatab,stats] = kruskalwallis(X(:,1),X(:,2));
c2=multcompare(stats);
The answer is:
1 2 -18.21 -2.31 13.60 0.94
1 3 -11.96 4.20 20.36 0.82
2 3 -9.40 6.51 22.41 0.60
In order to verify that the data is accurate, I continued to carry out two separate KW test data.
A= [G1;G2];
[P,anovatab,stats] = kruskalwallis(A(:,1),A(:,2));
c2=multcompare(stats);
The answer is:
1 2 -10.34 -1.35 7.63 0.77
Got the p value of their difference. Why, Which p value can truly reflect the difference between G1 and G2?
I'm looking forward to your reply very much.
Vedere anche
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!