Testing for a non-zero linear trend.
显示 更早的评论
I am working with some station climate data. I am taking the pair-wise differences between neighboring stations' temperature values and plotting those differences in a time series. If I want to find out whether or not there is a significant non-zero trend in these data, would I use the regress(y,X) function? Here's an example of what I'm doing:
>> X=[x ones(92,1)];
>> y=0.00089303*x-2.1248;
>> [b,bint,r,rint,stats]=regress(y,X);
>> stats
The stats should return the F-statistic and its corresponding p-value which is testing for a non-zero slope, correct?
Thanks
ZH
回答（1 个）
Jason
2013-7-16
0 个投票
Yes that is correct as long as the constant vector is included. Else the F is not valid.
You can also use regstats for other models and more stats than are available in regress (leverages etc).
cheers.
类别
在 帮助中心 和 File Exchange 中查找有关 Linear Regression 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
