Help me to fit my plot with pseudo-voigt function.

27 次查看（过去 30 天）
Mirtunjay Kumar
Mirtunjay Kumar 2017-4-12
回答： kk 2018-6-18
There are peak functions like Pseudo-Voigt function y = y0 + A * ( mu * (2/pi) * (w / (4*(x-xc)^2 + w^2)) + (1 - mu) * (sqrt(4*ln(2)) / (sqrt(pi) * w)) * exp(-(4*ln(2)/w^2)*(x-xc)^2) )
These functions are widely available in OriginLab. I have plotted (x,y) but unable to fit above equation and get the constants. How to fit this equation to graph and get these variables y0,xc,A,w and mu.

请先登录，再回答此问题。

回答（1 个）

kk
kk 2018-6-18
Hello, I found your pseudo-Voigt function and it seems to be working with a few small changes if x is a column vector: y = A*(mu*(2/pi)*(w./(4*(x-xc).^2 + w^2)) + (1 - mu)*(sqrt(4*log(2))/(sqrt(pi)*w))*exp(-(4*log(2)/w^2).*(x-xc).^2))

类别

在 Help Center 和 File Exchange 中查找有关 MATLAB 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