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Significance test for least squares line

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Dimitrios Bentis
Dimitrios Bentis 2019-1-21
回答： Jeff Miller 2019-1-21
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.
NyAlesund spring.jpg
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

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Jeff Miller
Jeff Miller 2019-1-21
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.

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