Re: [R] How to make a deep copy of a list?
В Sat, 12 Nov 2022 20:04:57 + Giovanni Petris пишет: > The problem is that the C code modifies elements of the list so that, > after the R function returns, I end up with a modified version of the > list argument. I believe passing to the function a deep copy of the > list argument would solve my problem. Is it an option to change the C code? I think that the fault lies with it, not with its caller. Except when using reference types, it should be safe to make the assumption that variables in R are passed as if by copy. In the interest of getting a quick workaround, does unserialize(serialize(L, NULL)) help? I would expect that to work unless your list contains something like environments. -- Best regards, Ivan __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
Re: [R] How to make a deep copy of a list?
Or modifying the C code to conform with the usual functional copy-on-write paradigm used throughout most of R. On November 12, 2022 12:04:57 PM PST, Giovanni Petris wrote: >Hello everybody, > >Does anybody know how to obtain a deep copy of a list? > >The context is the following. I am passing a list to a function which, in >turn, passes it to compiled C code via .Call. The problem is that the C code >modifies elements of the list so that, after the R function returns, I end up >with a modified version of the list argument. I believe passing to the >function a deep copy of the list argument would solve my problem. > >Thank you in advance for the help! > >Giovanni > >-- >Giovanni Petris >Professor and Director of Statistics >Department of Mathematical Sciences >University of Arkansas >Fayetteville, AR 72701 >USA > > > > [[alternative HTML version deleted]] > >__ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >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. -- Sent from my phone. Please excuse my brevity. __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
[R] How to make a deep copy of a list?
Hello everybody, Does anybody know how to obtain a deep copy of a list? The context is the following. I am passing a list to a function which, in turn, passes it to compiled C code via .Call. The problem is that the C code modifies elements of the list so that, after the R function returns, I end up with a modified version of the list argument. I believe passing to the function a deep copy of the list argument would solve my problem. Thank you in advance for the help! Giovanni -- Giovanni Petris Professor and Director of Statistics Department of Mathematical Sciences University of Arkansas Fayetteville, AR 72701 USA [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
Re: [R] Logistic regression for large data
Hi George,
I did not get an attachment.
My first step would be to try simplifying things. Do all of these work?
fit_1=glm(Base[,2]~Base[,1],family=binomial(link="logit"))
fit_1=glm(Base[,2]~Base[,10],family=binomial(link="logit"))
fit_1=glm(Base[,2]~Base[,11],family=binomial(link="logit"))
fit_1=glm(Base[,2]~Base[,12],family=binomial(link="logit"))
fit_1=glm(Base[,2]~Base[,13],family=binomial(link="logit"))
This is not a large dataset. That said, if your computer is nearly out of
memory, even a small dataset might be too much. It might have plenty of
physical memory, but also lots of (open files, cookies, applications, other
stuff) that eat memory.
Regards,
Tim
-Original Message-
From: R-help On Behalf Of George Brida
Sent: Friday, November 11, 2022 4:17 PM
To: r-help@r-project.org
Subject: [R] Logistic regression for large data
[External Email]
Dear R users,
I have a database called Base.csv (attached to this email) which
contains 13 columns and 8257 rows and whose the first 8 columns are dummy
variables which take 1 or 0. The problem is when I wrote the following
instructions to do a logistic regression , R runs for hours and hours without
giving an output:
Base=read.csv("C:\\Users\\HP\\Desktop\\New\\Base.csv",header=FALSE,sep=";")
fit_1=glm(Base[,2]~Base[,1]+Base[,10]+Base[,11]+Base[,12]+Base[,13],family=binomial(link="logit"))
Apparently, there is not enough memory to have the requested output. Is there
any other function for logistic regression that handle large data and return
output in reasonable time.
Many thanks
Kind regards
George
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[ESS] flymake + lintr do not work as expected on emacs 27.2 linux Mint
Hi all, here is Ottorino from Florence, Italy.
After many years of emacs+ESS I'm not able to switch to RStudio, and I
won't, even if all my students and PhDs like it: you can't teach an old
dog new tricks
After neglecting my init files for some years, and loosing some
hotkeys, I'm now determined to restore all the functionalities I had
some time ago.
My current problem is that flymake + lintr do not work as expected on
my desktop, while they do on my laptop.
On both systems I have:
Linux Mint 20.3 una
ess-version: 18.10.3snapshot [elpa: 20221108.1714] (loaded from
/home/user/.emacs.d/elpa/ess-20221108.1714/)
R version 4.2.2 (2022-10-31)
While on my laptop I have
GNU Emacs 27.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30) of
2021-12-14
while
GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.14) of
2020-03-26, modified by Debian
is on my desktop.
The desktop was not working and it was on Mint Tricia 19.03. so before
writing this mail, I upgraded it during last night to 20.3 una (both
based on Ubuntu focal).
In both systems, .emacs.d is in common under GIT, so the configuration
files are exactly the same.
Two similar copies of .lintr files are under the working dir
linters: linters_with_defaults(
line_length_linter(120),
object_name_linter(styles = c("dotted.case", "symbols"))
)
and under my home
linters: linters_with_defaults(
line_length_linter(119),
object_name_linter(styles = c("snake_case", "symbols"))
)
Well: it seems that emacs 27.2 do not cooperate well with flymake + lintr.
Any suggestion, beside downgrading emacs to 26.3 ?
Thanks
Ottorino
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