R一次性安装和加载多个软件包(ggplot2，devtools等R包)

#函数ipak <- function(pkg){    new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])]    if (length(new.pkg))         install.packages(new.pkg, dependencies = TRUE)    sapply(pkg, require, character.only = TRUE)}# 使用packages <- c("ggplot2", "plyr", "reshape2", "RColorBrewer", "scales", "grid")  ###安装的R包ipak(packages)####更多其它方式all.pcg <- c("car","MASS","plyr","lmtest","zoo","stats")sapply(all.pcg, library, character.only = T) ###安装sapply(all.pcg, require, character.only = T)###导入

ipak函数作用: 安装和加载多个R包

实现：检查是否安装了软件包。 如果没有安装，则把它们安装并加载到R会话中。

单细胞分析相关软件的安装

install.packages("devtools", dependencies=TRUE)install.packages('BiocManager')BiocManager::install('multtest')install.packages('Seurat')