Thank you guys. But I also want 'check.names' to help keeping colnames unique. It seems there's no proper option for that in 'read.table'. I have to alter colnames with strsplit or other similar functions.

From: jim holtman [mailto:jholtman@gmail.com]
Sent: Thursday, May 28, 2009 3:40 PM
To: Zheng, Xin (NIH) [C]
Cc: r-help@r-project.org
Subject: Re: [R] how to avoid add 'X' before numeric colnames when read.table

?read.table  check.names=FALSE
On Thu, May 28, 2009 at 3:25 PM, Zheng, Xin (NIH) [C] <zhengxin@mail.nih.gov<mailto:zhengxin@mail.nih.gov>> wrote:
Hi all,

Is there any way to keep numeric colnames as is? Any hint will be appreicated.

Xin Zheng


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