A model for cross-tabulated data. The idea is that the apparently complex relationship between the observed variables can be explained by a simple relationship that holds for unobserved latent variables. See also contingency table.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。