On 11/23/2011 09:38 PM, peter dalgaard wrote:
On Nov 23, 2011, at 10:03 , Jim Lemon wrote:
On 11/23/2011 06:47 AM, lucky7 wrote:
Hi,
I just start to use R today! I am reading the R Help on read.csv and the
description for header says "header is set to TRUE if and only if the first
row contai
On Nov 23, 2011, at 10:03 , Jim Lemon wrote:
> On 11/23/2011 06:47 AM, lucky7 wrote:
>> Hi,
>>
>> I just start to use R today! I am reading the R Help on read.csv and the
>> description for header says "header is set to TRUE if and only if the first
>> row contains one fewer field than the numbe
On 11/23/2011 06:47 AM, lucky7 wrote:
Hi,
I just start to use R today! I am reading the R Help on read.csv and the
description for header says "header is set to TRUE if and only if the first
row contains one fewer field than the number of columns". Why is that? My
data has the same number of fie
a b
A 1 2
B 3 4
C 5 6
The assumption above is that the rownames don't have a header and
the columns do. Therefore the default is header=TRUE.
r a b
A 1 2
B 3 4
C 5 6
In the second example, the first column is called "r" and it is not
clear whether that is a column with a variable
If you explicitly convert your categorical covariates to factors before you
regress, you can use the dot notation (see help on lm) to refer to "the rest"
of the columns not otherwise specified in your formula.
---
Jeff Newmil
Paul Evans wrote:
Hi All,
I hadn't realized the 'a-1' will open such a can of worms!
Actually, the header elements will look something like
'ABCD-002-234-01D' (instead of 'a-1'). I get the files from somwhere
else, so I cannot change how the input file is.
Should I go ahead with the check.na
rik Iverson
>
> Cc: r-h...@stat.math.ethz.ch
> Sent: Wed, February 3, 2010 4:27:11 PM
> Subject: Re: [R] Header in read.table() function
>
>> If you're data.frame had a
>> column named 'a', what should
>>
>>> mm$a-1
>>
>> do?
d with the check.names=FALSE option?
From: Erik Iverson
Cc: r-h...@stat.math.ethz.ch
Sent: Wed, February 3, 2010 4:27:11 PM
Subject: Re: [R] Header in read.table() function
>If you're data.frame had a
> column named 'a', what should
>
&
If you're data.frame had a
column named 'a', what should
mm$a-1
do? Print out mm$a-1, or subtract 1 from mm$a ? If you want your
original matrix back (i.e., object of class matrix), you could just use
save/load functions.
David found a way to get this in. I read the file in, converted to
On Feb 3, 2010, at 3:08 PM, Paul Evans wrote:
> Hi,
>
> I wanted to read in a table that had hyphens in the header / column names.
> When I read it in however, it replaces the hyphens with a dot. Which
> parameter in the read.table function do I need to set to change this
> behaviour?
> Exampl
Tena koe Paul
a-1 is not valid syntax in a name hence the conversion. See ?make.names
for more information. You could change the names after importing with
read.table; e.g.
names(whatever)[2] <- 'a-1'
but you may regret it later.
HTH .
Peter Alspach
> -Original Message-
> From:
Paul Evans wrote:
Hi,
I wanted to read in a table that had hyphens in the header / column
names. When I read it in however, it replaces the hyphens with a dot.
Which parameter in the read.table function do I need to set to change
this behaviour? Example code: jm <- matrix(1:4,2,2) rownames(jm)
On Feb 3, 2010, at 4:08 PM, Paul Evans wrote:
Hi,
I wanted to read in a table that had hyphens in the header / column
names. When I read it in however, it replaces the hyphens with a
dot. Which parameter in the read.table function do I need to set to
change this behaviour?
Example code:
On 01/24/2010 04:37 AM, David Lubbers wrote:
I have 6 or 7 nice constants (for example 1852 meters per nautical mile)
I would like to have available to 4 or 5 functions in an R package. In
C this would just be a header .h file and I would just "include" I am
stuck trying to figure out how to
See the check.names= argument to read.table.
On Mon, Sep 14, 2009 at 9:40 PM, Steven Kang wrote:
> Dear R users,
>
>
> Suppose the csv file contains header names such as *"Nike, dunk"*, *"Converse,
> All stars"* etc
>
> When imported to R (with header = T option), the column names are given by:
>
---
From: Neuer Arkadasch <[EMAIL PROTECTED]>
To: Neuer Arkadasch <[EMAIL PROTECTED]>; [EMAIL PROTECTED]
Sent: Friday, October 19, 2007 9:30:38 AM
Subject: Re: [R] header
Maybe I had to write that the original data what I read are
name 20_1_TT_Z_e4 20_2_TT_Z_e4
A1 102
See ?make.names, specifically the Details section which notes:
A syntactically valid name consists of letters, numbers and the dot or
underline characters and starts with a letter or the dot not followed by
a number. Names such as ".2way" are not valid, and neither are the
reserved words.
The cha
Maybe I had to write that the original data what I read are
name 20_1_TT_Z_e4 20_2_TT_Z_e4
A1 10222
A2 10321
A3 10720
Thatk you!
Neuer Arkadasch <[EMAIL PROTECTED]> schrieb:
Hi everyone, I read the following
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