[R] How to access a column by its label?

Hi all, Is there any way to access a column of a data frame by its label (title) rather than its column index? For example, I'd like to be able to select animals[,weight] rather than animals[,3], if the third column of the animals data frame has the label weight. Thank you!

Re: [R] How to access a column by its label?

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Re: [R] How to access a column by its label?

On Thu, 2006-08-03 at 14:44 -0400, Neil McLeod wrote: Hi all, Is there any way to access a column of a data frame by its label (title) rather than its column index? For example, I'd like to be able to select animals[,weight] rather than animals[,3], if the third column of the animals data