文档介绍：第七讲导入导出数据
导入数据
()
scan()
(file,
header = FALSE,
sep = "",
quote = "\"'",
dec = ".",
,
,
= FALSE,
= "NA",
colClasses = NA,
nrows = -1,
skip = 0,
= TRUE,
fill = !,
= FALSE,
= TRUE,
= "#")
team,name,level,worktime,bouns
batch,SuNan,B,135,"9,818"
batch,ChenQi,E,121,"6,050"
batch,JiangXu,F,97,"4,189"
online,ZhouXi,F,63,
online,ChenHe,H,36,"1,064"
例子:
>("D:/work/",header=TRUE,sep=",")->TeamInfo
> TeamInfo
team name level worktime bouns
1 batch SuNan B 135 9,818
2 batch ChenQi E 121 6,050
3 batch JiangXu F 97 4,189
4 online ZhouXi F 63
5 online ChenHe H 36 1,064
file: “”, 文件名的绝对路径, 或工作目录下的文件
> setwd("D:/work")
> getwd()
[1] "D:/work"
> ("",header=TRUE,sep=",")->TeamInfo
head:TRUE,第一行为数据名;
FALSE(缺省),第一行被命名为V1,V2,…
>("D:/work/",header=FALSE,
sep=",")->TeamInfo
> TeamInfo
V1 V2 V3 V4 V5
1 team name level worktime bouns
2 batch SuNan B 135 9,818
3 batch ChenQi E 121 6,050
4 batch JiangXu F 97 4,189
5 online ZhouXi F 63
6 online ChenHe H 36 1,064
>("D:/work/",header=TRUE,
sep=" ")->TeamInfo
> TeamInfo
1 batch,SuNan,B,135,9,818
2 batch,ChenQi,E,121,6,050
3 batch,JiangXu,F,97,4,189
4 online,ZhouXi,F,63,
5 online,ChenHe,H,36,1,064
sep: 字段分割符号
“”任意空格
“,”逗号分割 cammo seperated values
“\t” tab
nrows = -1:可读取的最大行数
skip = 0 : 跳过的行数
>("D:/work/",header=TRUE,sep=",",
nrows=3,skip=0)->TeamInfo
> TeamInfo
team name level worktime bouns
1 batch SuNan B 135 9,818
2 batch ChenQi E 121 6,050
3 batch JiangXu F 97 4,189
>("D:/work/",header=TRUE,sep=",",
nrows=3,skip=2)->TeamInfo
> TeamInfo
batch ChenQi E X121
1 batch JiangXu F 97 4,189
2 online ZhouXi F 63
3 online ChenHe H 36 1,064
:
(file, header = TRUE, sep = ",",