[R] How to show classes of all columns of a data frame?

From: T Mu <muster_at_gmail.com>
Date: Wed 16 Aug 2006 - 03:10:46 EST

Hi all,

Suppose I have a data frame myDF, col A is factor, col B is numeric, col C is character. I can get their classes by

> class(myDF$A)

but is there a quick way to show what classes of all columns are? Thank you.


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