小弟我帮老师做个数据分析项目，临时学了半个月《潜变量建模与Mplus应用》，老师给的模型在附件里
求大神解救求大神解救，实在是看不懂了
软件代码如下

Mplus VERSION 6.11
MUTHEN & MUTHEN
03/14/2017   5:31 PM

INPUT INSTRUCTIONS

  TITLE:  text5

  DATA:
    FILE IS "C:\Users\Administrator\Desktop\data\final data base99.dat";

  VARIABLE:
    NAMES ARE a1-a3 b1-b10;
    USEVARIABLES ARE a1-a3 b1-b10;
    CATEGORICAL = a2 a3 b1-b10;
    MISSING ARE ALL (99);

  ANALYSIS:
    TYPE IS MISSING;
    ESTIMATOR IS ML;
    ITERATIONS = 1000;
    CONVERGENCE = 0.00005;
    COVERAGE = 0.10;

  MODEL:                     positive BY  b1-b5 *;

                    negative BY  b6-b8 *;

                    support BY b9 b10 *;
                    positive@1;
                    negative@1;
                    support@1;
                    positive ON a1-a3;
                   negative ON a1-a3;
                    support ON negative positive;



  OUTPUT: SAMPSTAT  STANDARDIZED;



*** WARNING in ANALYSIS command
  Starting with Version 5, TYPE=MISSING is the default for all analyses.
  To obtain listwise deletion, use LISTWISE=ON in the DATA command.
*** WARNING
  Data set contains cases with missing on x-variables.
  These cases were not included in the analysis.
  Number of cases with missing on x-variables:  20
*** WARNING
  Data set contains cases with missing on all variables except
  x-variables.  These cases were not included in the analysis.
  Number of cases with missing on all variables except x-variables:  1
   3 WARNING(S) FOUND IN THE INPUT INSTRUCTIONS



text5

*** FATAL ERROR
     THIS MODEL CAN BE DONE ONLY WITH MONTECARLO INTEGRATION.