Displaying 20 results from an estimated 400 matches similar to: "serialize changes for 2.4.0"
2011 Jul 08
4
How to label specific points on a scatterplot
Command I am using for the plot:
plot(Raw[][Plate==101]~well[][Plate==101], xlab="Well", ylab="Raw",
main="Plate 101")
I only want to label points on the graph where well equals B13, G13, K14 and
N14 with the name of the well.
Thank you for your help.
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2013 Jul 15
2
Serialize data.frame to database
Dear R-Users,
I need a very fast and reliable database solution so I try to serialize a data.frame (to binary data) and to store this data to an SQLite database.
This is what I tried to do:
library(RSQLite)
con <- dbDriver("SQLite")
db <- dbConnect(con, "test")
dbSendQuery(db, 'CREATE TABLE frames("simID" INT, "data" BLOB)')
data.bin <-
2008 Sep 25
1
Saving R-objects to a database
Someone solved the problem of saving R-objects to a database?
These are the two varaints I've tried so far without success:
1)
ser = rawToChar(serialize(obj, NULL, ascii=TRUE))
dbSendQuery(link, paste("insert into table values(1, '",ser,"')",sep=''))
The field to save the object in the MySQL Database is of type text.
unser = dbGetQuery(link,"select
2000 Jan 11
0
still having problem from version 2.0.2 5)
hi,
in the WHATSNEW.txt it is stated that the problem with
root-processes in version 2.0.2 is solved. (fromw WHAT'S NEW):
> 5). Attempt to fix the AIX 4.1.x/3.x problems where smbd runs as
> root. As no-one has given us root access to such a server this
> cannot be tested fully, but should work.
we have on our samba-server n14:
AIX 4.3.2
DCE 2.2.0.5
Samba version 2.0.5a
i have it
2012 Nov 04
1
what is the function naming convention?
Dear R people,
In typing names of functions (built in or from a package) I often guess wrong, and have to look the name up.
In other words, I don't understand the logic in naming functions (if there is any):
- most names are plain, lower case: cos, plot, sapply, t, toupper, unserialize, (etc)
- some are capitalized: Filter, Machine, Map, NCOL, RNGversion, T (etc)
-
2017 Feb 26
6
[Bug 99968] New: [NV4C] System crashes reliably with glxinfo
https://bugs.freedesktop.org/show_bug.cgi?id=99968
Bug ID: 99968
Summary: [NV4C] System crashes reliably with glxinfo
Product: Mesa
Version: 12.0
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: Drivers/DRI/nouveau
Assignee:
2011 Sep 28
1
serialize/unserialize vector improvement
Hi folks,
I've attached a patch to the svn trunk that improves the performance
of the serialize/unserialize interface for vector types. The current
implementation: a) invokes the R_XDREncode operation for each element
of the vector type, and b) uses a switch statement to determine the
stream type for each element of the vector type. I've added
R_XDREncodeVector/R_XDRDecodeVector functions
2006 Feb 08
1
corruption of data with serialize(ascii=TRUE)
I noticed the following peculiarity with `serialize()' when `ascii = TRUE' is
used. In today's (svn r37299) R-devel, I get
> set.seed(10)
> x <- rnorm(10)
>
> a <- serialize(x, con = NULL, ascii = TRUE)
> b <- unserialize(a)
>
> identical(x, b) ## FALSE
[1] FALSE
> x - b
[1] -3.469447e-18 2.775558e-17 -4.440892e-16 0.000000e+00
2010 Apr 02
2
How to save a model in DB and retrieve It
I'm wondering how to save an object (models like lm, loess, etc) in a DB to retrieve and use it afterwards, an example:
wind_ms <- abs(rnorm(24*30)*4+8)
air_kgm3 <- rnorm(24*30, 0.1)*0.1 + 1.1
wind_dg <- rnorm(24*30) * 360/7
ms <- c(0:25)
kw_mm92 <- c(0,0,0,20,94,205,391,645,979,1375,1795,2000,2040)
kw_mm92 <- c(kw_mm92, rep(2050, length(ms)-length(kw_mm92)))
modelspline
2007 Aug 31
1
Consistency of serialize(): please enlighten me
Hi,
I am puzzled with serialize(). It comes down generating identical
hash codes for (apparently) identical objects using digest::digest(),
which in turn relies on serialize(). Here is an example illustration
the issue:
ser <- function(object, ...) {
list(
names = names(object),
namesRaw = charToRaw(names(object)),
ser = serialize(names(object), connection=NULL, ascii=FALSE)
2018 Nov 07
2
error unserializing ascii format (v2 or v3)
I ran into an interesting error unserializing a file created with
ascii=TRUE:
R 3.5.1 (Windows or Linux):
> unserialize(serialize(list(raw=as.raw(c(39,41))), NULL, version=2,
ascii=TRUE))
Error in unserialize(serialize(list(raw = as.raw(c(39, 41))), NULL,
version = 2, :
ReadItem: unknown type 29, perhaps written by later version of R
The same error happens when the
2008 May 21
1
rawToChar(raw(0))
Hi,
right now we have (on R v2.7.0 patched (2008-04-23 r45466)) that:
> rawToChar(raw(0))
[1] ""
> rawToChar(raw(0), multiple=TRUE)
character(0)
Is this intended or should both return character(0)? Personally, I
would prefer that an empty input vector returns an empty output
vector. Same should then apply to charToRaw(), but right now we get:
> x <- character(0)
>
2008 Apr 28
4
R 2.7.0, match() and strings containing \0 - bug?
Hi,
A piece of my code that uses readBin() to read a certain file type is
behaving strangely with R 2.7.0. This seems to be because of a failure
to match() strings after using rawToChar() when the original was
terminated with a "\0" character. Direct equality testing with ==
still works as expected. I can reproduce this as follows:
> x <- "foo"
> y <-
2007 Aug 07
2
Embedded nuls in strings
Hi,
?rawToChar
'rawToChar' converts raw bytes either to a single character string
or a character vector of single bytes. (Note that a single
character string could contain embedded nuls.)
Allowing embedded nuls in a string might be an interesting experiment but it
seems to cause some troubles to most of the string manipulation functions.
A string with an embedded 0:
2013 May 08
1
getting corrupted data when using readBin() after seek() on a gzfile connection
Hi,
I'm running into more issues when reading data from a gzfile connection.
If I read the data sequentially with successive calls to readBin(), the
data I get looks ok. But if I call seek() between the successive calls
to readBin(), I get corrupted data.
Here is a (hopefully) reproducible example. See my sessionInfo() at the
end (I'm not on Windows, where, according to the man page,
2020 Oct 29
2
Something is wrong with the unserialize function
Hi all,
I am not able to export an ALTREP object when `gctorture` is on in the
worker. The package simplemmap can be used to reproduce the problem. See
the example below
```
## Create a temporary file
filePath <- tempfile()
con <- file(filePath, "wrb")
writeBin(rep(0.0,10),con)
close(con)
library(simplemmap)
library(parallel)
cl <- makeCluster(1)
x <- mmap(filePath,
2013 May 03
1
untar() error
Dear List,
I have a list of 600+ *.gz files that I would like to extract and read the
geotiffs contained within them. I tried using the untar() function to
simplify this task but I am stumped by an error. I've combed the Internet
for a solution without luck. The details are below, and any help in solving
this matter is appreciated.
> files = list.files(path = "J:/GIMMS/NDVI",
2011 Dec 06
1
unserialize and eager execution
Hi,
While debugging a network server I'm developing I noticed something unusual
- call to unserialize() resulted in
an error about loading a namespace.
I was a bit taken back by this - why should unserializing an object cause a
namespace lookup?
Are there any other side-effects of unserialize() that I should be cautious
about? I've been
digging through the R_Unserialize() call, I
2020 Oct 29
2
[External] Something is wrong with the unserialize function
This
Index: src/main/altrep.c
===================================================================
--- src/main/altrep.c (revision 79385)
+++ src/main/altrep.c (working copy)
@@ -275,10 +275,11 @@
SEXP psym = ALTREP_SERIALIZED_CLASS_PKGSYM(info);
SEXP class = LookupClass(csym, psym);
if (class == NULL) {
- SEXP pname = ScalarString(PRINTNAME(psym));
+ SEXP pname =
2012 Jan 09
1
serializing recordedplot object
I use recordPlot() to save plots to disk that I render later to a
variety of formats. This works fine for base R plots and ggplot2
plots, and also used to work for lattice plots. However somewhere in
version 2.14 things stopped working for lattice plots. Here is an
example:
library(lattice);
histogram(rnorm(100));
x <- recordPlot();
saveRDS(x, "myplot.rds");
y <-