Dear All, I am trying to estimate the non -linear trend value from smooth spline trend fit (using the generalized additive model (GAM)).
I want to estimate the trend value from a temperature dataset (spatial averaged annual meantime from 1906 to 2005) as given in the Box 2.2, Table 1 in the attached Google doc pdf. (That pages are from IPCC Assessment Report 5 chapter 2 <https://www.ipcc.ch/site/assets/uploads/2017/09/WG1AR5_Chapter02_FINAL.pdf>, page number 21-22 ) I do not understand how they estimate the single value trend with 95% confidence interval from a time-series data as given in the Box 2.2, Figure 1. Is there any easy way to extract the trend value using mgcv library of R.? Google Doc Link: https://drive.google.com/file/d/1z3XLW-154dsZE6GrvQ4rH_fev9lqdsho/view?usp=sharing Thank you all in advance Dileepkumar R [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
