安装在R3.5版本或低于3.5版本的方法
# R < 3.5 version
install.packages(c("fields","RColorBrewer","mapplots"))
source("http://bioconductor.org/biocLite.R")
biocLite("LEA")
安装在R4.0版本或高于3.5版本的方法
# R > 3.5 version
install.packages(c("fields","RColorBrewer","mapplots"))
if (!requireNamespace("BiocManager", quietly = TRUE))
install.packages("BiocManager")
BiocManager::install("LEA")