r-黄土预测返回NA

本文介绍了r-黄土预测返回NA的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 限时删除！！ 我正在努力使用loess进行样本外"预测.我得到原始样本之外的新x的NA值.我可以得到这些预测吗?I am struggling with "out-of-sample" prediction using loess. I get NA values for new x that are outside the original sample. Can I get these predictions?x <- c(24,36,48,60,84,120,180)y <- c(3.94,4.03,4.29,4.30,4.63,4.86,5.02)lo <- loess(y~x)x.all <- seq(3,200,3)predict(object = lo,newdata = x.all)我需要模拟完整的收益率曲线，即不同期限的利率.I need to model full yield curve, i.e. interest rates for different maturities.推荐答案在predict.loess的手册页中:如果将曲面参数更改为"direct"，则可以外推值.If you change the surface parameter to "direct" you can extrapolate values.例如，这将起作用(附带说明:在绘制预测后，我的感觉是您应该稍微增加loess调用中的span参数):For instance, this will work (on a side note: after plotting the prediction, my feeling is that you should increase the span parameter in the loess call a little bit):lo <- loess(y~x, control=loess.control(surface="direct"))predict(lo, newdata=x.all) 这篇关于r-黄土预测返回NA的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 1403页，肝出来的..