What does the sigma value returned from Friedman's test represent?

2 visualizaciones (últimos 30 días)
Diana Li
Diana Li el 30 de Oct. de 2016
Editada: Diana Li el 30 de Oct. de 2016
When I run the following for a Friedman's test:
M = [0.7876 0.7219 0.7743 0.7938
0.9045 0.7142 0.6346 0.7114
0.8912 0.8252 0.7809 0.7675
0.9031 0.7122 0.6132 0.6758
0.8296 0.7334 0.6563 0.6878];
[p tbl Fstats] = friedman(M)
I get:
p =
0.0293
tbl =
'Source' 'SS' 'df' 'MS' 'Chi-sq' 'Prob>Chi-sq'
'Columns' [15.0000] [ 3] [5.0000] [9.0000] [ 0.0293]
'Error' [10.0000] [12] [0.8333] [] []
'Total' [ 25] [19] [] [] []
Fstats =
source: 'friedman'
n: 5
meanranks: [3.8000 2.6000 1.4000 2.2000]
sigma: 1.2910
I understand where the values in tbl come from and what they represent, but I can't figure out what Fstats.sigma is supposed to be. Does anyone know?

Respuestas (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by