R语言入门

在RGUI软件环境建立脚本并保存，使用菜单运行脚本

n <-floor(rnorm(5000, 500, 50))　    #生5000个正态分布随机数并取整

t <- table (n)                                           #统计n中所有整数出现的次数

barplot (t)                                                       #画出柱状图

barplot (table (floor (rnorm (5000, 500, 50))))                 #画柱状图

print ("Hello, World")

x <- c (1,1,2,3,5,8,13,21,34,55)                        #函数c()用于创建向量

mean (x)

x <- rnorm (10)

x

mean(x)                                                         #均值

sd(x)                                                              #标准差

summary(x)                                                    #概要