R：定义数据框的行名和列名

标签：ar   strong   数据   sp   c   on   r   bs   as   

> weight = c(150, 135, 210, 140)
> height = c(65, 61, 70, 65)
> gender = c("Fe","Fe","M","Fe")

> study = data.frame(weight,height,gender)
> study
  weight height gender
1    150     65     Fe
2    135     61     Fe
3    210     70      M
4    140     65     Fe

> study = data.frame(w=weight,h=height,g=gender)
> study
    w  h  g
1 150 65 Fe
2 135 61 Fe
3 210 70  M
4 140 65 Fe

> names(study) <- c("wei","hei","gen")
> study
  wei hei gen
1 150  65  Fe
2 135  61  Fe
3 210  70   M
4 140  65  Fe

> row.names(study)<-c("Mary","Alice","Bob","Judy")
> study
      wei hei gen
Mary  150  65  Fe
Alice 135  61  Fe
Bob   210  70   M
Judy  140  65  Fe

R：定义数据框的行名和列名

标签：ar   strong   数据   sp   c   on   r   bs   as   

原文地址：http://my.oschina.net/letiantian/blog/324224