On 3/15/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I
want to set some data frames as constant to avoid being modified
unintentionally. Thanks!
Although there is almost never a No in R
Michael Friendly wrote:
This is just the flexibility of R. I've just discovered a new class of
geometries based on
pi - 2.3
?Constants
This is a must-fortune.
Dieter
--
View this message in context:
http://r.789695.n4.nabble.com/Does-R-have-a-const-object-tp3356972p3381748.html
On 16/03/11 13:04, Michael Friendly wrote:
On 3/15/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I
want to set some data frames as constant to avoid being modified
unintentionally. Thanks
On Wed, Mar 16, 2011 at 10:54 AM, Allan Engelhardt all...@cybaea.com wrote:
On 16/03/11 13:04, Michael Friendly wrote:
On 3/15/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I
want
On 16/03/11 15:04, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 10:54 AM, Allan Engelhardtall...@cybaea.com wrote:
[...]
Yes, but you can still print(base::pi) and rm(pi) to get back to our flat
world, and you can't
assign(pi, 4, pos = package:base)
Error in assign(pi, 4, pos =
Just as a heads-up: it is likely that unlocking the bindings in base
for pi, T, F, probably all BULTIN and SPECIAL functions, and possibly
more, will start signaling warnings in the near future. Doing this
may be useful at times for debugging but it can mess up assumptions
others make about how
On Wed, Mar 16, 2011 at 6:04 AM, Michael Friendly frien...@yorku.ca wrote:
On 3/15/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I
want to set some data frames as constant to avoid being
On Wed, Mar 16, 2011 at 11:49 AM, luke-tier...@uiowa.edu wrote:
Just as a heads-up: it is likely that unlocking the bindings in base
for pi, T, F, probably all BULTIN and SPECIAL functions, and possibly
more, will start signaling warnings in the near future. Doing this
may be useful at times
On Wed, 16 Mar 2011, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 11:49 AM, luke-tier...@uiowa.edu wrote:
Just as a heads-up: it is likely that unlocking the bindings in base
for pi, T, F, probably all BULTIN and SPECIAL functions, and possibly
more, will start signaling warnings in the
On Wed, Mar 16, 2011 at 12:16 PM, luke-tier...@uiowa.edu wrote:
On Wed, 16 Mar 2011, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 11:49 AM, luke-tier...@uiowa.edu wrote:
Just as a heads-up: it is likely that unlocking the bindings in base
for pi, T, F, probably all BULTIN and SPECIAL
On Wed, Mar 16, 2011 at 4:16 PM, luke-tier...@uiowa.edu wrote:
That would defeat the purpose. Unlocking things in base may be useful
for experimenting or debugging but it is not a good idea otherwise.
You are making experimenting in R more awkward? Then I'm throwing
That would defeat the
On Wed, 16 Mar 2011, Barry Rowlingson wrote:
On Wed, Mar 16, 2011 at 4:16 PM, luke-tier...@uiowa.edu wrote:
That would defeat the purpose. Unlocking things in base may be useful
for experimenting or debugging but it is not a good idea otherwise.
You are making experimenting in R more
On Wed, 16 Mar 2011, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 12:16 PM, luke-tier...@uiowa.edu wrote:
On Wed, 16 Mar 2011, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 11:49 AM, luke-tier...@uiowa.edu wrote:
Just as a heads-up: it is likely that unlocking the bindings in
Its useful for being able to set defaults for arguments that do not
have defaults. That cannot break existing programs.
Until the next program decides do co change those defaults and either
can't or does and you end up with incompatible assumptions. It also
make the code with the added
On Wed, Mar 16, 2011 at 1:12 PM, luke-tier...@uiowa.edu wrote:
On Wed, 16 Mar 2011, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 12:16 PM, luke-tier...@uiowa.edu wrote:
On Wed, 16 Mar 2011, Gabor Grothendieck wrote:
On Wed, Mar 16, 2011 at 11:49 AM, luke-tier...@uiowa.edu wrote:
.
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Uwe Ligges
Sent: Tuesday, March 15, 2011 2:23 PM
To: xiagao1982
Cc: r-help
Subject: Re: [R] Does R have a const object?
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R
Hi, all,
Does R have a const object concept like which is in C++ language? I want to
set some data frames as constant to avoid being modified unintentionally.
Thanks!
xiagao1982
2011-03-15
[[alternative HTML version deleted]]
__
R-help@r
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I want to
set some data frames as constant to avoid being modified unintentionally. Thanks!
Although there is almost never a No in R, the best short answer is: No.
Best,
Uwe
On 15/03/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I want
to set some data frames as constant to avoid being modified unintentionally. Thanks!
Although there is almost never a No in R
On 03/15/2011 11:34 AM, Duncan Murdoch wrote:
On 15/03/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language?
I want to set some data frames as constant to avoid being modified
unintentionally. Thanks
On Tue, Mar 15, 2011 at 10:53 AM, xiagao1982 xiagao1...@gmail.com wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I want to
set some data frames as constant to avoid being modified unintentionally.
Thanks!
LockBinding will prevent a variable from being
On 15.03.2011 19:35, Martin Morgan wrote:
On 03/15/2011 11:34 AM, Duncan Murdoch wrote:
On 15/03/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language?
I want to set some data frames as constant
On 15/03/2011 2:35 PM, Martin Morgan wrote:
On 03/15/2011 11:34 AM, Duncan Murdoch wrote:
On 15/03/2011 2:23 PM, Uwe Ligges wrote:
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language?
I want to set some data frames
Sent: Tuesday, March 15, 2011 2:23 PM
To: xiagao1982
Cc: r-help
Subject: Re: [R] Does R have a const object?
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I want to
set some data frames as constant to avoid being modified
-help-boun...@r-project.org] On
Behalf Of Uwe Ligges
Sent: Tuesday, March 15, 2011 2:23 PM
To: xiagao1982
Cc: r-help
Subject: Re: [R] Does R have a const object?
On 15.03.2011 15:53, xiagao1982 wrote:
Hi, all,
Does R have a const object concept like which is in C++ language? I want
to set
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