How to get curve fitting equation
4 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Abdallah Magour
am 23 Jan. 2024
Kommentiert: Abdallah Magour
am 24 Jan. 2024
Is there a way I can get the equation shwon in the figure or in the basic fitting window? The 8th degree polynimial.
I want to get this equation through a code line not through the graph tools, I also need it in the exact same form.(Including x)
I will repeiat this for a large number of plots or x and y data directly if possible.
Please ignore the red line at the bottom.![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1598156/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1598156/image.png)
2 Kommentare
akshatsood
am 23 Jan. 2024
Bearbeitet: akshatsood
am 23 Jan. 2024
Could you please provide me with the data needed to replicate the issue on my end, allowing me to assist you better?
Akzeptierte Antwort
Walter Roberson
am 23 Jan. 2024
Bearbeitet: Walter Roberson
am 23 Jan. 2024
6 Kommentare
Sam Chak
am 24 Jan. 2024
The data is not the same as what is shown in the image above. However, you can remove the NaN values by utilizing the isnan() function.
T = readtable("Data from a similar graph.xlsx", VariableNamingRule="preserve")
x = T{:,1};
y = T{:,2}; % contains NaN
data= [x, y];
%% Omit row contains NaN
data_clean = data(~isnan(data(:, 2)), :)
%% Extract from clean data
x_clean = data(:,1);
y_clean = data(:,2);
plot(x_clean, y_clean, '-o'), grid on
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Interpolation finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!