Error with nlme
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: For IGF data from nlme library, I'm getting this error message: lme(conc ~ 1, data=IGF, random=~age|Lot) Error in lme.formula(conc ~ 1, data = IGF, random = ~age | Lot) : nlminb problem, convergence error code = 1 message = iteration limit reached without convergence (10) But everything is fine with this code lme(conc ~ age, data=IGF) Linear mixed-effects model fit by REML Data: IGF Log-restricted-likelihood: -297.1831 Fixed: conc ~ age (Intercept) age 5.374974367 -0.002535021 Random effects: Formula: ~age | Lot Structure: General positive