Putting all elementes of the list in an enviorment of a function

Hello!

I have two functions.

The first one prepares the arguments for the second one. What is the best
way to put all resoults of the first one into the second one? I tried
attach, however the object in the "main" enviorment have a priority over the
ones in list. An example is at the end.

Thanks in advance for any suggestions!
Ales Ziberna

For example - I would like to use just "a" instead of "list$a" in fuction
"second"

first<-function(a,b){
   if(length(a)!=1) a <- a[1]
   if(length(b)!=1) b <- b[1]
   list(a=a,b=b)
}

second<-function(list,c){
   list$a + list$b + c
}

a<-c(2,3)
b<-4:64
c<-5

res<-first(a,b)
second(res,c)

?with will help you.

I would avoid using 'list' as a function name, as it will confuse people
and might confuse R too.

On Tue, 2 Aug 2005, [iso-8859-2] Alea }iberna wrote:

Hello!

I have two functions.

The first one prepares the arguments for the second one. What is the best
way to put all resoults of the first one into the second one? I tried
attach, however the object in the "main" enviorment have a priority over 
the
ones in list. An example is at the end.

Thanks in advance for any suggestions!
Ales Ziberna

For example - I would like to use just "a" instead of "list$a" in fuction
"second"

first<-function(a,b){
   if(length(a)!=1) a <- a[1]
   if(length(b)!=1) b <- b[1]
   list(a=a,b=b)
}

second<-function(list,c){
   list$a + list$b + c
}

a<-c(2,3)
b<-4:64
c<-5

res<-first(a,b)
second(res,c)

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

Thank you!

However, this does not do exacty what I want. I would like somehow to modify 
only the function second.

BTW, I used "list" only to create a "list", it is not one of my functions.

Thanks again,
Ales Ziberna

----- Original Message ----- From: "Prof Brian Ripley" 
<ripley at stats.ox.ac.uk>
To: "Ales Ziberna" <ales.ziberna at guest.arnes.si>
Cc: "R-help" <r-help at stat.math.ethz.ch>
Sent: Tuesday, August 02, 2005 10:35 AM
Subject: Re: [R] Putting all elementes of the list in an enviorment of a 
function

?with will help you.

I would avoid using 'list' as a function name, as it will confuse people
and might confuse R too.

On Tue, 2 Aug 2005, [iso-8859-2] Alea }iberna wrote:

Hello!

I have two functions.

The first one prepares the arguments for the second one. What is the best
way to put all resoults of the first one into the second one? I tried
attach, however the object in the "main" enviorment have a priority over 
the
ones in list. An example is at the end.

Thanks in advance for any suggestions!
Ales Ziberna

For example - I would like to use just "a" instead of "list$a" in fuction
"second"

first<-function(a,b){
   if(length(a)!=1) a <- a[1]
   if(length(b)!=1) b <- b[1]
   list(a=a,b=b)
}

second<-function(list,c){
   list$a + list$b + c
}

a<-c(2,3)
b<-4:64
c<-5

res<-first(a,b)
second(res,c)

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

On Tue, 2 Aug 2005, Ales Ziberna wrote:

Thank you!

However, this does not do exacty what I want. I would like somehow to 
modify only the function second.

What happened when you tried my suggestion as

second <- function(l, c) with(l, a + b + c)

?  It does work for me.

BTW, I used "list" only to create a "list", it is not one of my 
functions.

You used it as a variable within second()!

Thanks again,
Ales Ziberna

----- Original Message ----- From: "Prof Brian Ripley" 
<ripley at stats.ox.ac.uk>
To: "Ales Ziberna" <ales.ziberna at guest.arnes.si>
Cc: "R-help" <r-help at stat.math.ethz.ch>
Sent: Tuesday, August 02, 2005 10:35 AM
Subject: Re: [R] Putting all elementes of the list in an enviorment of a 
function

?with will help you.

I would avoid using 'list' as a function name, as it will confuse people
and might confuse R too.

On Tue, 2 Aug 2005, [iso-8859-2] Alea }iberna wrote:

Hello!

I have two functions.

The first one prepares the arguments for the second one. What is the 
best
way to put all resoults of the first one into the second one? I tried
attach, however the object in the "main" enviorment have a priority 
over the
ones in list. An example is at the end.

Thanks in advance for any suggestions!
Ales Ziberna

For example - I would like to use just "a" instead of "list$a" in 
fuction
"second"

first<-function(a,b){
   if(length(a)!=1) a <- a[1]
   if(length(b)!=1) b <- b[1]
   list(a=a,b=b)
}

second<-function(list,c){
   list$a + list$b + c
}

a<-c(2,3)
b<-4:64
c<-5

res<-first(a,b)
second(res,c)

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595