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以下是set trace on 后的显示
. myprog price mpg rep78,noconstant
- syntax varlist(numeric ts min=2 ) [if] [in] [,noCONStant]
- marksample touse
- gettoken depvar indeps: varlist
- tempname b V t
- mata: ols2("`depvar'","`indeps'","`touse'","`constant'")
= mata: ols2("price"," mpg rep78","__000001","noconstant")
1 2 3
+----------------------------------------------+
1 | -271.6425431 666.9567638 9657.754439 |
+----------------------------------------------+
[symmetric]
1 2 3
+----------------------------------------------+
1 | 3337.506101 |
2 | -7957.607523 117207.5816 |
3 | -43953.02457 -229768.9308 1813170.961 |
+----------------------------------------------+
1 2 3
+-------------------------------------------+
1 | -4.7020447 1.948138498 7.172272494 |
+-------------------------------------------+
- matrix `b'=r(b)
= matrix __000002=r(b)
- matrix `V'=r(V)
= matrix __000003=r(V)
- matrix `t'=r(t)
= matrix __000004=r(t)
- ereturn post `b'`V',esample(`touse')
= ereturn post __000002__000003,esample(__000001)
matrix __000002__000003 not found
r(111);
很奇怪!明明都可以显示matrix b和V,为什么在ereturn post `b'`V'的时候又找不到矩阵了呢!
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