Re: [R] Ignoring initial rows in a text file import

From: Uwe Ligges <>
Date: Tue, 01 Jun 2010 18:33:29 +0200

On 01.06.2010 02:19, David Winsemius wrote:
> On May 31, 2010, at 8:14 PM, jim holtman wrote:
>> try this:
>> input <- readLines("yourfile.txt")
>> # determine start
>> start <- grep("\tBegin Main\t", input)[1] # first line if many
> Puzzled. I thought backslashes in grepping patterns needed to be
> doubled? I guess not.

Well, yes, for a backslash, but here a tab is specified, but no backslash at all.

Additionally, see ?regex:
"The current implementation interprets \a as BEL, \e as ESC, \f as FF, \n as LF, \r as CR and \t as TAB."

Uwe Ligges mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Tue 01 Jun 2010 - 16:35:56 GMT

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