//exam0203.txt
Name Sex Age Height Weight
Alice F 13 56.5 84.0
Becka F 13 65.3 98.0
Gail F 14 64.3 90.0
Karen F 12 56.3 77.0
Kathey F 12 59.8 84.5
Mary F 15 66.5 112.0
Sandy F 11 51.3 50.5
Sharon F 15 62.5 112.5
Tammy F 14 62.8 102.5
Alfred M 14 69.0 112.5
Duke M 14 63.5 84.0
Guido M 15 67.0 133.0
James M 12 57.3 83.0
Jeffrey M 13 62.5 84.0
John M 12 59.0 99.5
Philip M 16 72.0 150.0
Robert M 12 64.8 128.0
Thomas M 11 57.5 85.0
William M 15 66.5 112.0
由于该文件第一行是属性名称，即是含标题的.txt，所以head=TRUE。然后，编写.R脚本文件，如下：
//exam0203.R
setwd("G:\\myProject\\RDoc\\Unit1")
rt <- read.table("exam0203.txt",head=TRUE)rt
lm.sol <- lm(Weight~Height,data=rt)
summary(lm.sol)
可以先读入文件，再取第三列1000-2000行data <- read.table("c:/text.txt",sep=“”）
need <- data[1000:2000,3]
tempA <- c(1,2,3,6,7,9)tempB <- c(2,6,7)
tempC <- tempA[-tempB]# 注意有个负号
print(tempC)
