OPTMODEL算法及其现有BUG

shiyiming

From dwdus's blog on Baidu


               
                <p><strong><span>SAS 9.2 PROC OPTMODEL BUG:</span></strong></p>
<p><strong><span>proc optmodel:</span></strong></p>
<p><strong><span>sum{i in k}&nbsp; (f(x1)* sum{j in p} f(x2));</span></strong></p>
<p><strong><span>expand; </span></strong><span><strong><span style="COLOR: #ff0000">/*解析出来的表达式会出现局部偏差*/</span></strong></span></p>
<p><span></span>&nbsp;</p>
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