j*e
2 楼
45度角的话太阳就不会耀眼了
s*o
3 楼
请教各位大侠，有没有这样的time-series model:
Y_t=m(X_t, theta1)+s(X_t, theta2)*u_t
where X_t is some exogenous covariates, m and s are two functions of X_t and
/or X_t-1, X_t-2 ..., theta1 and theta2 are some parameters, u_t is error
term.
谢谢大家先
Y_t=m(X_t, theta1)+s(X_t, theta2)*u_t
where X_t is some exogenous covariates, m and s are two functions of X_t and
/or X_t-1, X_t-2 ..., theta1 and theta2 are some parameters, u_t is error
term.
谢谢大家先
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