大家好 我在做差分GMM模型的Arellano-Bord 序列相关检验时出现以下情况 ,view--residual diagnostics--Arellano-Bond serial correlation test做这个老是显示Instrument weights were not saved with this equation.
Please re-estimate the equation with the 'keep weights'option selected.
请问大家知道怎么处理么 keep weights 这个选项在哪呢 跪求