R help - Dec 2008 - Extracting the name of an object into a character string

Dear List,

I am writing a function in R with the facility to store models for later
use in scoring.
It would be very useful if I could include in the name of the file
stored the name of
the model object being stored, this name being chosen by the user in the
function
call. A simple function to store the name of an object as a character
string would fit the
bill, but I have not found one. name() doesn't appear to do what I want,
maybe I'm using
it wrongly.  Any suggestions please ? I'm running 2.8.0 on windows XP,

Thanks,

Philip
 



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	[[alternative HTML version deleted]]

do you mean something like the following:

f <- function (x) {
     deparse(substitute(x))
}

x <- 5
y <- 6
z <- 7

f(x)
f(y)
f(z)


I hope it helps.

Best,
Dimitris


Philip Whittall wrote:
> Dear List,
> 
> I am writing a function in R with the facility to store models for later
> use in scoring.
> It would be very useful if I could include in the name of the file
> stored the name of
> the model object being stored, this name being chosen by the user in the
> function
> call. A simple function to store the name of an object as a character
> string would fit the
> bill, but I have not found one. name() doesn't appear to do what I
want,
> maybe I'm using
> it wrongly.  Any suggestions please ? I'm running 2.8.0 on windows XP,
> 
> Thanks,
> 
> Philip
>  
> 
> 
> 
> This message should be regarded as confidential. If you have received this
email in error please notify the sender and destroy it immediately.
> Statements of intent shall only become binding when confirmed in hard copy
by an authorised signatory.  The contents of this email may relate to dealings
with other companies within the Detica Group plc group of companies.
> 
> Detica Limited is registered in England under No: 1337451.
> 
> Registered offices: Surrey Research Park, Guildford, Surrey, GU2 7YP,
England.
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> 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.
> 
-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center

Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014

Dear List,

I have two dataframes with overlapping colnames and want to merge them. 
  Actually, what I want is more similar to rbind, but the dataframes 
differ in their columns. Here are the examples:

df1 <- data.frame(A = c(1,2), B = c("m","f"), C =
c("at home", "away"))
df2 <- data.frame(A = c(2), C = c("at home"))

Here the desired result:

   A B        C
1 1 m  at home
2 2 f     away
3 2 NA at home

Thanks for any help,
Stefan

have a look at merge(), e.g.,

df1 <- data.frame(A = c(1,2), B = c("m","f"), C =
c("at home", "away"))
df2 <- data.frame(A = c(2), C = c("at home"))

merge(df1, df2, all = TRUE, sort = FALSE)


I hope it helps.

Best,
Dimitris


Stefan Uhmann wrote:
> Dear List,
> 
> I have two dataframes with overlapping colnames and want to merge them. 
>  Actually, what I want is more similar to rbind, but the dataframes 
> differ in their columns. Here are the examples:
> 
> df1 <- data.frame(A = c(1,2), B = c("m","f"), C =
c("at home", "away"))
> df2 <- data.frame(A = c(2), C = c("at home"))
> 
> Here the desired result:
> 
>   A B        C
> 1 1 m  at home
> 2 2 f     away
> 3 2 NA at home
> 
> Thanks for any help,
> Stefan
> 
> ______________________________________________
> R-help at r-project.org mailing list
> 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.
> 
-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center

Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014

Dear Stefan,

Why not use merge() if you want to merge two datasets? ;-)

df1 <- data.frame(A = c(1,2), B = c("m","f"), C =
c("at home", "away"))
df2 <- data.frame(A = c(2), C = c("at home"))
merge(df1, df2, all = TRUE) 

HTH,

Thierry

------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium 
tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be 
www.inbo.be 

To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to
say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of
data.
~ John Tukey

-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org]
Namens Stefan Uhmann
Verzonden: donderdag 11 december 2008 13:46
Aan: r-help op r-project.org
Onderwerp: [R] merging data.frames columnwise (rbind with different
variables,lengths)

Dear List,

I have two dataframes with overlapping colnames and want to merge them. 
  Actually, what I want is more similar to rbind, but the dataframes 
differ in their columns. Here are the examples:

df1 <- data.frame(A = c(1,2), B = c("m","f"), C =
c("at home", "away"))
df2 <- data.frame(A = c(2), C = c("at home"))

Here the desired result:

   A B        C
1 1 m  at home
2 2 f     away
3 2 NA at home

Thanks for any help,
Stefan

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http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

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