: @5 t* W* T: }! s$ t请问老师。我按照一阶变量 指向二阶变量,然后二阶变量指向 item. 最后按照自己的模型把线脸上。结果出不来结果。提示的是 3 i- t2 R$ z* N6 H6 C W_A_R_N_I_N_G: LAMBDA-Y does not have full column rank( U1 a- _9 H% Y, V7 F
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W_A_R_N_I_N_G: The solution was found non-admissible after 50 iterations. # x- M" v ~; o9 Q/ I) }' A% U The following solution is preliminary and is provided only - D$ v' _. X1 z1 @+ X for the purpose of tracing the source of the problem. 9 U& m9 g* Y9 x# v; k Setting AD> 50 or AD=OFF may solve the problem/ ?6 U9 B, m6 J% _, e6 y8 @