我正在尝试在car库中使用deltaMethod ,但我得到了一个奇怪的错误.
library(car)
x=c(1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11)
y=c(-0.78636545259908996, -0.48499513735893701, -0.61035206318152102, -0.60156864486986295, -0.61323703005521701, -0.33091952573467498, -0.269895273193686, -0.32222378534205598, -0.53183084634683997, -0.96631869084439304, -0.77105781684519603, -0.524039870915605, -0.41181303531095498, -0.27581842299642001, -0.72085673574325404, -0.35874718580022702, -0.30752543764527501, -0.090745334342823197, -0.465889655296298, -0.20115970219526799, -0.0511742487116199, 0.0100170907454752, -0.176138595601495, 0.042138062483845398, 0.00081247733328697303, -0.0045220167465173499, 0.57326735553016905, 0.116862163616526, 0.0072264835163109399, 0.48714531471859701, 0.83738659120408598, …