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雷达卡
estimation is as following:<br/>
<br/>
y*=x'b+e, e follows N(0,sigma^2) , normal distribution<br/>
<br/>
y*&lt;a1 y&lt;0 <br/>
<br/>
a1=&lt;y*=&lt;a2 y=0 <br/>
<br/>
y*&lt;a2 y&gt;0 <br/>
<br/>
How could I get the Ln[G(yj | Xj,a,b)] in order to implement the Maximum Lilelyhood estimation<br/>
for a1 and a2?<br/>
<br/>
Could anyone please help me ?<br/>
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