求助Mplus问题。
已经用SPSS分组了,80组,一组3个数据。还是报错。
INPUT INSTRUCTIONS
TITLE: this is multilevel regression, m y are level 2, x is level 1
DATA: FILE IS 1.dat;
VARIABLE: NAMES ARE id a1-a5 b1-b4 c1-c3; USEVARIABLE = id x m y;
DEFINE: x = sum(a1-a5);
m= sum(b1-b4);
y=sum(c1-c3);
WITHIN = m y;
BETWEEN = x;
MISSING = blank;
CLUSTER = id;
ANALYSIS: TYPE = TWOLEVEL RANDOM; MODEL:
%WITHIN% s | y ON m; %BETWEEN% s ON x;
OUTPUT: TECH8 SAMPSTAT;
*** ERROR in VARIABLE command TYPE=TWOLEVEL requires specification for the CLUSTER option.