R language Introductory video note--4--r data entry

The data input of R can be roughly three kinds:

1. Keyboard output

2. Import from a text file

3. Import data from Excel

One, from the keyboard input

First create a data frame, play, blind build a

MyData <-Data.frame (age =numeric (0), gender= character (0), weight=numeric (0)) #建一个空数据框, but the element type has been declared

MyData <-Edit (MyData) #可以进行编辑

Fix (MyData) #跟上面一样可以进行编辑, • is easier than edit

Ii. entering data from a text file

Data <-read.table ("path", header= true,sep= ",") #注意文件需要是ANSI编码的, it is necessary to note whether the contents of the file are separated by a space.

Iii. entering data from Excel

Data1 <-read.csv ("path, need to be aware of backslashes and slashes", header=ture,sep= ",") #文件用csv格式的 pretty good

R language Introductory video note--4--r data entry