Rnotes

Mirrors

> options()$repos  ## 查看使用install.packages安装时的默认镜像
> options()$BioC_mirror ##查看使用bioconductor的默认镜像
> options(BioC_mirror="https://mirrors.ustc.edu.cn/bioc/") ##指定镜像，这个是中国科技大学镜像
> options("repos" = c(CRAN="https://mirrors.tuna.tsinghua.edu.cn/CRAN/")) ##指定install.packages安装镜像，这个是清华镜像

lme4

Formula	Alternative	Meaning
(1|g)	1+(1|g)	Random intercept with fixed mean
0+offset(o)+(1|g)	-1+offset(o)+(1|g)	Random intercept with a prior means
(1|g1/g2)	(1|g1)+(1|g1:g2)	Intercept varying among g1 and g2 within g1
(1|g1)+(1|g2)	1+(1|g1)+(1|g2)	Intercept varying among g1 and g2
x+(x|g)	1+x+(1+x|g)	Correlated random intercept and slope
x+(x||g)	1+x+(1|g)+(0+x|g)	Uncorrelated random intercept and slope

ggplot