Hello,
I would like for my C function to be able to manipulate some values stored in
an R data frame.
To achieve this, a need the (real) memory address where the R data frame stores
its data (hopefully in a contiguous way). Then, from R, I call the C function
and passing this memory address as
Hi,
I would like to know if the Garbage Collector (GC) changes the address of a
variable in R. In other words, assuming the following code:
library(pryr)
x <- 1:1024
addr <- address(x) # save address of variable "x" in "addr"
.
.
Hi,
I am trying to build R using Visual Studio 2010 but without success. My
question is if it possible build R with this compiler anyway?
If not, could someone please tell how to link one's C code against both the
static and shared libraries of R for Windows (that comes from the official
web
Hi,
To get the memory address of where the value of variable "x" (of datatype
"numeric") is stored one does the following in R (in 32 bit):
library(pryr)
x <- 1024
addr <- as.numeric(address(x)) + 24 # 24 is needed to jump the
variable info and point to the data itself (i
Hi,
Given the following R code:
library(pryr)
data <- array(dim = c(5))
for(x in 1:5)
{
data[x] <- as.integer(x * 2)
}
add = address(data) # save address of "data"
for(x in 1:5)
{
data[x] <- as.integer(0)
}
if (add == addr
printing it) thus changing the array's address?
Thank you once more!
Sent: Sunday, November 12, 2017 at 6:02 PM
From: "David Winsemius"
To: "lille stor"
Cc: r-devel@r-project.org
Subject: Re: [Rd] Array changing address unexpectedly
> On Nov 12, 2017, at 8:47 A
