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Welcome to Open Discussion (2004-02-12 16:36 by 匿名 #7875)

Welcome to Open Discussion

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Re: Welcome to Open Discussion (2022-10-05 22:22 by 家鴨 #91820)

ファイル norminv.sl 内の関数

func stat_calnormsinv(x){
check1 = stat_checkisscalar(x);
check2 = stat_checkpvalue(x);

a1 = 1.570796288;
a2 = 0.03706987906;
a3 = -8.364353589 * 10^(-4);
a4 = -2.250947176 * 10^(-4);
a5 = 6.841218299 * 10^(-6);
a6 = 5.824238515 * 10^(-6);
a7 = -1.04527497 * 10^(-6);
a8 = 8.360937017 * 10^(-8);
a9 = -3.231081277 * 10^(-9);

y = - log(4 * x * (1 - x));
y = y * (a1 + y * (a2 + y * (a3 + y * (a4 + y * (a5 + y * (a6 + y * (a7 + y * (a8 + y * a9))))))));
ret = sqrt(y);

if(x > 0.5){
ret = -ret;
}

return ret;
}

の最後の所ですが、もしかして if ( x < 0.5 ) ではないでしょうか？
間違っていたらすいません。。。
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