Significance test for least squares line

Hello everyone,

I would like to ask how is it possible to do a significance test in the least squares line i plotted of 40 values reffering to wind direction. The least squares line is plotted with the lsline command.

What command do i need to conclude whether the tilt of this line is significant or not. What would be the inputs in this case?

Thanks in advance

Answer 1

[Jeff Miller]

Look at the regress command. You will want something like:

[b,bint,r,rint,stats] = regress(Wind,Year);

stats will contain the p-value that most people use to test whether the tilt is significant.