Also you have to be very careful. e.g.
> BOD
Time demand
118.3
22 10.3
33 19.0
44 16.0
55 15.6
67 19.8
> attach(BOD)
> Time <- Time + 1
> BOD # oops! BOD was not changed
Time demand
118.3
22 10.3
33 19.0
44 16.0
55 15.6
6
>> From: hadley wickham
>>
>> Don't use attach?
>
> Obvously good advice but why?
Philosophically, it's better to be explicit than implicit, and the
extremely non-local effects of attach can make debugging difficult.
Hadley
--
http://had.co.nz/
__
If you are starting with an Excel file, then you should have R read
the xls file directly.
You should avoid the distortions often introduced by an intermediate
format such as .txt or .csv files.
I recommend using RExcel. You can get it from CRAN with
install.packages("RExcelInstaller")
library(R
Thanks a huge bunch John, David, Steve, Hadley and Erik!
I don't know how acceptable it is to mass thank everyone :), but seemed
like a good idea as everyone was in on the thread and here's how it worked:
Unmatched quotes was probably correct.
When exporting from excel, it did warn me that the
--- On Mon, 9/21/09, hadley wickham wrote:
> From: hadley wickham
>
> Don't use attach?
Obvously good advice but why?
__
The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo!
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vcl. Try
head(vcl)
str((vcl)
class(vcl)
and see if you can display the file (head()) and get some idea of the structure
from str() and class()
--- On Mon, 9/21/09, A Singh wrote:
> From: A Singh
> Subject: Re: [R] Working around 256 byte variable names? + trouble opening
> l
Read in the first few lines with readLines, try to "eyeball" the
errors and if not successful, then supply them to read.table through a
textConnection. Remember that single quotes do not match double
quotes. Also watch out for "smart-quotes". I don't think they match
anything.
?readLines
On Mon, Sep 21, 2009 at 3:04 PM, A Singh wrote:
> Dear R users,
>
> I am trying to read in a file with 105 columns, and when trying to attach
> it, get an error as follows:
>
>> vc1<-read.table("P:\\R\\Everything-I.txt", header=T, sep=" ", dec=".",
>
> na.strings=NA, strip.white=T)
>>
>> attach(vc
> I did just try to do that, and it is still returning the same error when I
> try to attach the csv file..
>
> > vc1<-read.table("P:\\R\\Everything-I.csv",header=T, sep=" ", dec=".",
> na.strings=NA, strip.white=T)
> > attach(vc1)
> Error in attach(vc1) : variable names are limited to 256 bytes
Hi Aditi,
On Sep 21, 2009, at 4:04 PM, A Singh wrote:
Dear R users,
I am trying to read in a file with 105 columns, and when trying to
attach it, get an error as follows:
vc1<-read.table("P:\\R\\Everything-I.txt", header=T, sep=" ",
dec=".",
na.strings=NA, strip.white=T)
attach(vc1)
E
:)
Well that does make even more sense.
Is there a way of fixing the unmatched quote problem though?
I do not have any clue as to how it can be done.
Will remaking the original file, and then re-reading it in help?
--On 21 September 2009 16:17 -0400 David Winsemius
wrote:
On Sep 21, 200
re header line as one variable.
Why not try exporting the Exce file as a csv file and loading that?
--- On Mon, 9/21/09, A Singh wrote:
From: A Singh
Subject: [R] Working around 256 byte variable names? + trouble opening
large file To: r-help@r-project.org
Received: Monday, September 21,
On Sep 21, 2009, at 4:04 PM, A Singh wrote:
Dear R users,
I am trying to read in a file with 105 columns, and when trying to
attach it, get an error as follows:
vc1<-read.table("P:\\R\\Everything-I.txt", header=T, sep=" ",
dec=".",
na.strings=NA, strip.white=T)
attach(vc1)
Error in at
, A Singh wrote:
> From: A Singh
> Subject: [R] Working around 256 byte variable names? + trouble opening large
> file
> To: r-help@r-project.org
> Received: Monday, September 21, 2009, 4:04 PM
> Dear R users,
>
> I am trying to read in a file with 105 columns, and wh
Dear R users,
I am trying to read in a file with 105 columns, and when trying to attach
it, get an error as follows:
vc1<-read.table("P:\\R\\Everything-I.txt", header=T, sep=" ", dec=".",
na.strings=NA, strip.white=T)
attach(vc1)
Error in attach(vc1) : variable names are limited to 256 byt
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