trend line calculation and display

Hi, how can I obtain and display a trend line from some points? I need the equation of the trend line. Thanks

[Alex Backer]

https://www.mathworks.com/matlabcentral/fileexchange/76467-trendline

Answer 1

[Harry MacDowel]

First, plot the data like usual.

Then go to Tools -> Basic Fitting

Choose one of the fittings you like, then check Show Equation

Remember to click the Right Arrow key at the bottom right to view the values of the coefficients for the fit.

Answer 2

[Sarah Weihmann]

Hi Aravind S,

try the fit command for trendline calculation: http://de.mathworks.com/help/curvefit/fit.html Display the equation y=m*x+n as >> m=3; >> n=4; >> legend(sprintf('y=%f*x+%f',m,n));

Cheers, S

Answer 3

[aravind S]

Is there command available?

[Pablo López]

Sure! Take a look of polyfit for polynomial curve fitting.

Polynomial curve fitting

Hope that helps!