黃河泉 发表于 2018-3-13 06:36 
请 help suest，例子
恩恩，谢谢老师。执行命令后出现如下错误提示：matsize too small
You have attempted to create a matrix with too many rows or columns or attempted to fit a model with too many variables. You need to
increase matsize; it is currently 400. Use set matsize; see help matsize.
If you are using factor variables and included an interaction that has lots of missing cells, either increase matsize or set emptycells
drop to reduce the required matrix size; see help set emptycells.
If you are using factor variables, you might have accidentally treated a continuous variable as a categorical, resulting in lots of
categories. Use the c. operator on such variables.
r(908);
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