[R] Removing columns from data frame referenced by column index

[sayan dasgupta]

data(airquality)
head(airquality)
Suppose you want to remove the 1st and the 3rd column this will do
 airquality[,-c(1,3)]



suman dhara wrote:
> 
> Can you suggest me any way to remove a column of a data frame by the
> column
> number,not by the column name.
> 
> Thanks,
> Suman Dhara
> 
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> 
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