请教关于可靠度曲线的绘制。
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论坛的老师:您好!
假设随机变量服从对数正态分布,计算可靠度曲线R(t),我要算的R(t)中分子和分母均含有log(t)
代码如下:
t=1:3e4;
f=(log(15)+12.4750-1.0975*log(t))./(0.9851-0.0983*log(t));
R=normcdf(f,0,1);
plot(t,R)
为什么不能得到一条光滑曲线呢?是我的f表达式中的参数有问题吗?
谢谢老师!
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