On Nov 10, 2011, at 7:36 PM, Worik R wrote:
Thanks.
Thinking like a C programmer again....
You are thinking of something else:
> length(NULL)
[1] 0
W
On Fri, Nov 11, 2011 at 1:27 PM, Peter Langfelder <
peter.langfel...@gmail.com> wrote:
On Thu, Nov 10, 2011 at 4:17 PM, Worik R <wor...@gmail.com> wrote:
It seems obvious to me that the empty string "" is length 0.
You are using the wrong function to find the length of a character
string.
length() returns the length of the object, and length of (non-NULL)
scalars is always 1. If you want the number of characters in a
string,
use nchar():
nchar("")
[1] 0
Peter
David Winsemius, MD
West Hartford, CT
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