R 3.6.1
OS X
Colleagues,
I read the first line of a CSV file using the readLines command; the only
option was n=1 (I am interested in only the first line of the file)
STRING <- readLines(FILE, n=1)
to which R responded:
Warning message:
In readLines(FILE, n = 1) : line 1 appears to contain an embedded nul
I then attempted to determine the number of characters in that string:
nchar(STRING)
to which R responded:
Error in nchar(STRING) : invalid multibyte string, element 1
I then went to examine the string:
print(STRING)
[1] "\xff\xfet”
and:
cat(STRING, "\n”)
??t
I was surprised to see the difference in the output of cat vs. string (see
above). But I assume this results from the multibyte characters.
Now to my question: I am trying to automate this process and I would like to
see the output from the print command but without the [1] that precedes the
string.
If I am working at the command line, RGUI, or RStudio, I can type
STRING<CR>
However, in a script, I need to preface STRING with either “print” or “cat” (or
something else).
Short of writing my own print method, is there any simple way to accomplish
this?
Dennis
Dennis Fisher MD
P < (The "P Less Than" Company)
Phone / Fax: 1-866-PLessThan (1-866-753-7784)
www.PLessThan.com
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
