July 2014
M T W T F S S
« May    
 123456
78910111213
14151617181920
21222324252627
28293031  

Dropping columns in subset command

Use “select=c(var1,var2)” in the subset command to select var1 and var2.

Use “select=-c(var1,var2)” in the subset command to drop var1 and var2.


Technorati Tags:

Comments are closed.