Displaying 20 results from an estimated 200 matches similar to: "packBits (PR#9374)"
2008 May 09
1
Typo in man page for "packBits" (PR#11435)
One occurence of 'packbits' should be 'packBits' (version information
below):
Index: src/library/base/man/rawConversion.Rd
===================================================================
--- src/library/base/man/rawConversion.Rd (revision 55)
+++ src/library/base/man/rawConversion.Rd (working copy)
@@ -41,7 +41,7 @@
of 32 times the length of an integer vector with
2008 Aug 16
1
unique.default problem (PR#12551)
Full_Name: Vilmos Prokaj
Version: R 2.7.1
OS: windows
Submission from: (NULL) (213.181.195.84)
Dear developers,
The following line of code (produced by a mistake) caused an infinite loop
unique("a",c("a","b"))
or also
unique(1,1:2)
I made a little investigation, and it seems to be that the following function
from unique.c is looping infinitely
static int
2007 Aug 23
1
missing --vanilla option in INSTALL (PR#9877)
Full_Name: Vilmos Prokaj
Version: 2.5.1
OS: windows
Submission from: (NULL) (81.183.3.216)
I'm not sure that this is really a bug, if not I do not understand why should it
be in this way.
Most of the scripts used to build and install new packages calls the R program
with the
--slave --vanilla command line options. In the INSTALL script however we can
find the following lines
2008 Oct 15
1
aggregate(empty data.frame) (PR#13167)
Full_Name: Vilmos Prokaj
Version: R-2..7.1
OS: Win XP
Submission from: (NULL) (157.181.227.218)
The 'aggregate' function on an empty data.frame generate an error, however it
should return according to the documentation an empty data.frame.
e.g.
z<-data.frame(a=integer(0),b=numeric(0))
aggregate(z,by=z[1],FUN=sum)
In a more realistic situation 'z' is of the form
2013 Apr 03
1
Question: how to convert raw to numeric
I know that there is a function to convert binary data to string named
rawToChar.but I wander is there any similar function for "Integer" and
"float".I need to read some binary file in "integer" and "float" data.
I can do this job in this way: (as below)
first convert 4 byte raw to bits then pack bits back to "integer", but it
not work for
2006 Mar 17
1
[PATCH] OpenSSL RNG initialization
Hi,
dovecot tries to use OpenSSL's PRNG to generate random numbers if
there is no /dev/urandom found. Unfortunately, it is flawed in its
present
form, since the PRNG is not seeded before RAND_bytes() is called in
src/lib/randgen.c (on systems which have /dev/urandom, OpenSSL
automatically seeds its PRNG from the urandom device).
Here's a patch to address this issue: it tries to seed
2006 Jan 27
1
rbind/cbind unimplemented for raw (RAWSXP) types. (PR#8529)
Full_Name: Hin-Tak Leung
Version: R 2.2.1
OS: x86_64-redhat-linux-gnu
Submission from: (NULL) (131.111.186.92)
rbind/cbind is unimplemented for raw (RAWSXP) types.
I have a working patch implementing the functionality,
to follow.
--please do not edit the information below--
Version:
platform = x86_64-redhat-linux-gnu
arch = x86_64
os = linux-gnu
system = x86_64, linux-gnu
status =
major
2005 Oct 13
0
fax consult
Dear sirs,
I believe that this question should go to Steve Underwood, but if someone
else also has something to say, I have my ears totally open.
After differents tests (None of them worked), I'm ready to install spandsp,
app_txfax & app_rx fax to try fax to email & email to fax.
This is my environment.
A server with a PRI card Digium TE405, a Pentium 4 HT 3.2 GHz with
2009 Jan 08
0
STAR_0.2-2 on CRAN
Hi all,
The new version of STAR (0.2-2) is now available on CRAN.
* An error in function varianceTime has been corrected (thanks to Chong Gu).
* The vignette has been updated.
* A new vignette is available on STAR web sire:
http://sites.google.com/site/spiketrainanalysiswithr/
* The new goodness-of-fit test for spike train models announced in the
previous release in now fully functional
2009 Jan 08
0
STAR_0.2-2 on CRAN
Hi all,
The new version of STAR (0.2-2) is now available on CRAN.
* An error in function varianceTime has been corrected (thanks to Chong Gu).
* The vignette has been updated.
* A new vignette is available on STAR web sire:
http://sites.google.com/site/spiketrainanalysiswithr/
* The new goodness-of-fit test for spike train models announced in the
previous release in now fully functional
2009 May 10
2
In C, a fast way to slice a vector?
Hello,
Suppose in the following code,
PROTECT(sr = R_tryEval( .... ))
sr is a RAWSXP vector. I wish to return another RAWSXP starting at
position 13 onwards (base=0).
I could create another RAWSXP of the correct length and then memcpy
the required bytes and length to this new one.
However is there a more efficient method?
Regards
Saptarshi Guha
2010 Aug 22
1
Handle RAWSXP in inspect.c:typename()
Hi all
I had written a gdb macro to dump the string representation of an SEXPREC
type when I realised everything I needed was in inspect.c already in the
typename() function. However, the typename function doesnt handle the RAWSXP
type, so if possible, could the following patch be applied (I've just put in
inline as it is a trivial 1-liner)?
Index: src/main/inspect.c
2010 Jun 19
1
more powerful iconv
R community,
As you may know, R's iconv doesn't work well converting to and from
encodings that allow embedded nulls. For example
> iconv("foo", to="UTF-16")
Error in iconv("foo", to = "UTF-16") :
embedded nul in string: '\xff\xfef\0o\0o\0'
However, I don't believe embedded nulls are at issue here, but rather
that R's iconv
2005 Aug 20
1
Implementing a single-precision class with raw
A package that I develop (xcms) sometimes needs to read and process
vectors several hundreds of megabytes in size. (They only represent
parts of a large data sets which can approach nearly 100GB.)
Unfortunately, R sometimes hits the 2GB memory limit of Win32. To help
cut the memory footprint in half, I'm implementing a "float" class as a
subclass of "raw". Because
2006 Dec 18
0
R 2.4.1 is released
I've rolled up R-2.4.1.tar.gz a short while ago. This is a maintenance
release and fixes a number of mostly minor bugs. See the full list
of changes below.
You can get it (in a short while) from
http://cran.r-project.org/src/base/R-2/R-2.4.1.tar.gz
or wait for it to be mirrored at a CRAN site nearer to you. Binaries
for various platforms will appear in due course.
For the R Core
2006 Dec 18
0
R 2.4.1 is released
I've rolled up R-2.4.1.tar.gz a short while ago. This is a maintenance
release and fixes a number of mostly minor bugs. See the full list
of changes below.
You can get it (in a short while) from
http://cran.r-project.org/src/base/R-2/R-2.4.1.tar.gz
or wait for it to be mirrored at a CRAN site nearer to you. Binaries
for various platforms will appear in due course.
For the R Core
2017 Mar 29
3
Transferring ownership of R-managed buffer
I have a use case where I would like to create an SEXP around an existing
buffer that is managed by R, thus avoiding a copy operation. If I have
something like:
void *p = (void*) RAW(PROTECT(Rf_allocVector(RAWSXP, n)));
... additional maniupulation ...
SEXP x = somefunc(SXPTYPE, n, p); // ????
Is there a "placement" constructor available? (I have arranged for the
corresponding
2015 Mar 17
2
Reduce memory peak when serializing to raw vectors
Hi,
I've been doing some tests using serialize() to a raw vector:
df <- data.frame(runif(50e6,1,10))
ser <- serialize(df,NULL)
In this example the data frame and the serialized raw vector occupy ~400MB each, for a total of ~800M. However the memory peak during serialize() is ~1.2GB:
$ cat /proc/15155/status |grep Vm
...
VmHWM: 1207792 kB
VmRSS: 817272 kB
We work with very
2008 Jan 25
3
strsignif.c, util.c (PR#10635)
In R 2.6.1, a couple of places (discovered using valgrind) where the
requested size of string buffers fails to account correctly for the
trailing null byte:
1. In src/appl/strsignif.c, 'f0' and 'form' at l. 108-9 each need at
least 1 extra byte.
2. In src/main/util.c, 'out' at l. 1081 needs at least one extra byte.
(Remember that the return value of strlen does not
2015 Mar 17
2
Reduce memory peak when serializing to raw vectors
Presumably one could stream over the data twice, the first to get the size,
without storing the data. Slower but more memory efficient, unless I'm
missing something.
Michael
On Tue, Mar 17, 2015 at 2:03 PM, Simon Urbanek <simon.urbanek at r-project.org>
wrote:
> Jorge,
>
> what you propose is not possible because the size of the output is
> unknown, that's why a