Hi, all
There are 62 samples in my data and I tested 3 times for each one, then I
want to use ICC(intraclass correlation) from irr package to test the
consistency among the tests.
*combatexpdata_p[1:62] is the first text results and combatexpdata_p[63:124]
* is the second one and *combatexpdata_p[125:186]* is the third.
Here is the result:
result<-icc(cbind(combatexpdata_p[1:62],combatexpdata_p[63:124],combatexpdata_p[125:186]),
"twoway")
result
Single Score Intraclass Correlation
Model: twoway
Type : consistency
Subjects = 62
Raters = 3
ICC(C,1) = -0.0664
F-Test, H0: r0 = 0 ; H1: r0 > 0
F(61,122) = 0.813 , p = 0.814
95%-Confidence Interval for ICC Population Values:
-0.184 < ICC < 0.086
I can get the p value by result$p but when i try result$icc to get the ICC
value, it doesn't work. Is there anybody here know how to extract the
-0.0664 from the result? Many thanks.
--
Chen, Chao
Psychiatry
University of Chicago
924 E 57th St, Chicago, IL 60637
U. S. A.
MOE Key Laboratory of Contemporary Anthropology and Center for
Evolutionary Biology,
School of Life Sciences and Institutes of Biomedical Sciences,
Fudan University
220# Handan Road, Shanghai (200433)
P.R.China
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