Message-ID: <Pine.A41.4.61b.0504190904560.309968@homer05.u.washington.edu>
Date: 2005-04-19T16:06:53Z
From: Thomas Lumley
Subject: Printing a single "\" character
In-Reply-To: <Pine.GSO.4.33_heb2.09.0504191856260.29688-100000@csd.cs.technion.ac.il>
On Tue, 19 Apr 2005, Firas Swidan wrote:
> Hi,
> I have a small R question: how to print a single "\" character? I have the
> following results:
>> print("\") does not work
>
>> print("\\")
> [1] "\\"
Use cat("\\").
> I need to make the following substitution as well, but it does not work
> either:
>> sub("_","\_","g_g")
> [1] "g_g"
Use
sub("_","\\\\_","g_g")
If you print() the result it will look as though it has a double \, but
that's an optical illusion. cat() will show it correctly with a single \
(and nchar() will confirm that it has 4 characters).
-thomas