IRT软件FACETS 里的DATA如何想使用小数，如何定义？
比如下例，运行至DATA的第一行时就提示数据必须为正整数，求解：
Title = speaking test
Facets = 3 ; examinees, raters,criteria
Positive = 1 ; for examinees higher score=higher measure
Noncentered= 1 ; examinees don't have mean score set to zero
Models=
?,?,?,R20
*
Labels=
1,examinees
1-10
1,s1
2,s2
3,s3
4,s4
5,s5
6,s6
7,s7
8,s8
9,s9
10,s10
*
2,raters
1-4
1,r1
2,r2
3,r3
4,r4
*
3,criteria
1-6
1,ZHFX
2,JHZZ
3,YYBD
4,RJJW
5,YB
6,JZYB
*
dvalues=3,1-6
data=
1,1,8.2,8,8.5,8.8,8,8.8
2,1,8.5,7.7,8.5,8.6,8.2,8.5
3,1,8.6,7.6,8.5,8.8,8.4,8.6
4,1,8.3,7.4,8.3,8.5,8.4,8.5
5,1,8.5,7.2,8.1,8.4,9,8.5
6,1,8,7.8,8.5,8.8,8.8,8.4
7,1,7.8,7.5,8.2,8.6,8.7,8.2
8,1,7.6,7.2,7.9,8.2,8.4,8.1
9,1,8.8,7.3,8,8.4,8.3,8.3
10,1,8.7,7.8,7.8,8.6,8.2,8.4
1,2,9,8.8,8.6,8.8,8.6,9
2,2,8.8,8.3,8.6,8.7,8.9,9
3,2,8.5,8.5,8.7,8.6,8.7,9
4,2,8.4,8.6,8.8,8.5,8.5,9
5,2,8.8,8.4,8.9,8.6,8.7,9
6,2,8,8.2,8.5,8.8,8.8,9
7,2,8.8,8.4,8.2,8.6,8.7,9
8,2,8.6,8.5,8.8,8.2,8.4,9
9,2,9,8.8,8.7,8.4,8.3,9
10,2,8.7,8.9,8.4,8.6,8.2,9
3,3,7,9,8,8,8,8
4,3,7,8,7,8,8,8
5,3,6,8,6,7,8,9
6,3,6,7,7,8,9,7
7,3,7,7,6,7,8,8
8,3,7,7,7,9,7,9
9,3,9,8,8,7,7,8
10,3,7,8,8,7,6,9
1,4,7,7,7,8,9,8
2,4,7,8,7,7,8,8
3,4,6,7,7,7,7,8
4,4,6,7,6,7,7,7
5,4,5,7,5,6,7,8
6,4,5,6,6,8,7,7
7,4,6,6,5,7,7,7
8,4,6,6,6,8,6,7
9,4,8,6,7,6,6,7
10,4,6,7,6,7,8,7