what is the function which calculate the area under curve like ''normspec '' ?

1 次查看（过去 30 天）
Amr Hashem
Amr Hashem 2015-11-10
编辑： Torsten 2015-11-10
I am using a different probability distribution to fit a data but the tail didn't() reach zero (at x-axis)
I want to determine the 99% of the area under curve of this probability ditribution.
I use this code to produce the figure:
paramEsts = gevfit(data); %estimate parameter
xgrid = linspace(0,18,100);
pdfEst = gevpdf(xgrid,paramEsts(1),paramEsts(2),paramEsts(3)); hold on;
line(xgrid,pdfEst,'color','r')
when I was fitting the normal distribution. I got the value of 99% of the curve using:
p= normspec([6.5,inf],mu,sigma);
but I didn't know how to get it with generalized extreme value distribution?

请先登录，再回答此问题。

采纳的回答

Torsten
Torsten 2015-11-10
编辑：Torsten 2015-11-10
x = gevinv(0.01,paramEsts(1),paramEsts(2),paramEsts(3));
gives you the 99% x-value.
Best wishes
Torsten.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with Curve Fitting Toolbox 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by