how to plot smooth line plot?

23 次查看(过去 30 天)
Vishnu Dhakad
Vishnu Dhakad 2020-2-5
I have data in x,y.
I have plotted x,y in log scale in both axises
but I did not getting smooth plot.
How to get it like excel plot.
please find the attached data and pics of the plot
Figure01 from MATLAB
Figure02 from Excel
I dont have signal processing tool.
  4 个评论
Rik
Rik 2020-2-5
If you want a smooth line in the loglog domain, you should interpolate in that domain as well.
Vishnu Dhakad
Vishnu Dhakad 2020-2-5
thanks for your suggetion
how to do?

请先登录,再进行评论。

回答(2 个)

Hiro Yoshino
Hiro Yoshino 2020-2-5
How about increasing the number of data by using interpolation?:

Rik
Rik 2020-2-5
The code below generates some example data and then interpolates the data in the loglog domain.
%generate some example data
X=exp(linspace(log(0.25),log(32),40));
Y1=randi([15 25],1,numel(X)).*exp(X./15);
xq = (0.25:0.001:32);
V = exp(interp1(log(X), log(Y1), log(xq), 'spline'));
figure(1),clf(1)
loglog(X,Y1,'.b')%plot orignal data
hold on
loglog(xq,V,'r')%add interpolation
hold off
  3 个评论
Rik
Rik 2020-2-6
I didn't use your data, but generated some random data. Did you try using your data and my code?
Vishnu Dhakad
Vishnu Dhakad 2020-2-7
Yes, I have used your code.

请先登录,再进行评论。

类别

Help CenterFile Exchange 中查找有关 Smoothing 的更多信息

标签

产品


版本

R2019b

Community Treasure Hunt

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

Start Hunting!

Translated by