Displaying 20 results from an estimated 10000 matches similar to: "splitting a factor column into binary columns for each level"
2010 Jan 26
1
splitting a factor column into binary columns for each factor
Yesterday I posted the following question (my apologies for not putting a subject line):
=================question======================
Hello -- I would like to know of a more efficient way of writing the following piece of code. Thanks.
options(stringsAsFactors=FALSE)
orig <- c(rep('11111111',100000),rep('22222222',200000),rep('33333333'
2010 Jan 25
2
(no subject)
Hello -- I would like to know of a more efficient way of writing the following piece of code. Thanks.
options(stringsAsFactors=FALSE)
orig <- c(rep('11111111',100000),rep('22222222',200000),rep('33333333',300000),rep('44444444',400000))
orig.unique <- unique(orig)
system.time(df <- as.data.frame(sapply(orig.unique, function(x) ifelse(orig==x, 1, 0))))
2014 Mar 14
2
[LLVMdev] [ARM] [PIC] optimizing the loading of hidden global variable
Hi Rafael,
Yes, merging gv prevents linker to do garbage collection. Should it be implemented as a peephole pass? If we do it too early, the distance between GVs are not fixed yet.
PS:
Below is the GCC output with "extern" hidden:
ldr r2, .L2
stmfd sp!, {r3, lr}
.save {r3, lr}
.LPIC0:
add r0, pc, r2
bl _Z4initPv(PLT)
ldr r1, .L2+4
.LPIC1:
add r0, pc, r1
bl _Z4initPv(PLT)
ldr
2012 Apr 19
1
Question about glusterfs quotas on debian wheezy?
Hello list,
I'm experimenting with a little GlusterFS cluster on debian wheezy:
=== snip ===
muzzy:~# cat /etc/debian_version
wheezy/sid
muzzy:~# dpkg -l | grep gluster
ii glusterfs-client 3.2.6-1 clustered file-system (client package)
ii glusterfs-common 3.2.6-1 GlusterFS common libraries and translator
modules
ii glusterfs-server 3.2.6-1 clustered file-system (server package)
=== snip
2014 Mar 12
3
[LLVMdev] [ARM] [PIC] optimizing the loading of hidden global variable
Hi,
When Im compiling a code with fvisibility=hidden fPIC for ARM, I find
that LLVM generates less optimized code than GCC.
For example:
test.cpp:
void init(void *);
int g0[100];
int g1[100];
int g2[100];
void foo() {
init(&g0);
init(&g1);
init(&g2);
}
Clang will emit 1 GOT entry for each GV and 2 instructions to get the
address:
ldr
2011 Jun 23
1
Generate the next column from previous column
Hi, I'm quite new to R and are stuck with the following problem.
Lets say I have a column consisting of a 1 and the rest zero's, called G0.
G0 <- c(1,rep(0,5))
Now what I would like to do is to generate G1 from G0, and G2 from G1 etc...
Just for the simplicity, let's say I need the first entry of the column to
be increased by 5 each time.
How could I do this?
Thanks already!
2002 Nov 21
1
[LLVMdev] get TopDown DSGraph
Thanks, Chris. Actually I got the following graph from my program:
digraph DataStructures {
label="Function fini";
edge [arrowtail="dot"];
size="10,7.5";
rotate="90";
Node0x100ae1c40 [shape=record,shape=Mrecord,label="{ %struct.a:
HIMR\n|{<g0>|<g1>|<g2>}}"];
Node0x100ae1c40:g1 -> Node0x100ae1e00;
2012 May 23
0
gam (mgcv) vs. multiple regression breakpoint analysis: inconsistencies?
Dear useRs,
I have a question with respect to fitting a non-linearity using gam
(mgcv package, version 1.7-16).
In a study I'm currently conducting, I'd like to find out if there is
a breakpoint after which the effect of Age of Acquisition (AOA) of the
second language changes. I.e. if the slope of AOA before the
breakpoint (at a certain AOA) is different from the slope past the
2014 Dec 12
2
[Bug 991] New: Exactly after 24h of uptime system hungs
https://bugzilla.netfilter.org/show_bug.cgi?id=991
Bug ID: 991
Summary: Exactly after 24h of uptime system hungs
Product: netfilter/iptables
Version: unspecified
Hardware: sparc64
OS: Debian GNU/Linux
Status: NEW
Severity: blocker
Priority: P5
Component: ip_tables (kernel)
2014 Jul 10
0
Warnings in dmesg and results of mmiotrace 10de:1140 Geforce620m Optimus Laptop Acer E1-531G
Od: "Ilia Mirkin" <imirkin at alum.mit.edu>
Do: "Lampshade" <lampshade at poczta.fm>;
Wys?ane: 19:07 Czwartek 2014-07-10
Temat: Re: [Nouveau] Warnings in dmesg and results of mmiotrace 10de:1140
Geforce620m Optimus Laptop Acer E1-531G
> On Thu, Jul 10, 2014 at 11:01 AM, Lampshade wrote:
> > Hello
> > in dmesg I always have these informations (I
2016 Apr 05
1
[Bug 94826] New: Cannot set external display as primary in optimus mode
https://bugs.freedesktop.org/show_bug.cgi?id=94826
Bug ID: 94826
Summary: Cannot set external display as primary in optimus mode
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
2023 Oct 31
1
weights vs. offset (negative binomial regression)
[Please keep r-help in the cc: list]
I don't quite know how to interpret the difference between specifying
effort as an offset vs. as weights; I would have to spend more time
thinking about it/working through it than I have available at the moment.
I don't know that specifying effort as weights is *wrong*, but I
don't know that it's right or what it is doing: if I were
2007 Jul 24
2
Dial out through multiple Zap groups
Hi,
I'm trying to set a rule to dial out through multiple
Zap groups so that, say, g0 is the cheaper POTS lines
group
and must be used first. However, if g0 is busy or
disconnected then try dialing out g1.
My g0 group is made up of 4 analog lines connected to
a 4-FXO card. I disconnected the RJ-11 wires from the
FXO card
to simulate a line disconnection. So theoretically all
calls should
2012 Jan 12
1
[LLVMdev] A question of Sparc assembly generated by llc
Hi,
There are some generated Sparc assembly code like this:
main: ! @main
! BB#0:
save %sp, -112, %sp
sethi 0, %l0
or %g0, 5, %l1
st %l0, [%fp+-4]
st %l1, [%fp+-8]
st %l1, [%fp+-12]
sethi %hi(.L.str), %l1
ld [%fp+-8], %o1
add %l1, %lo(.L.str), %l1
or %g0, %l1, %o0
call printf
nop
ld [%fp+-12], %o2
ld [%fp+-8], %l2
sethi %hi(.L.strQ521), %l3
add
2017 Oct 03
0
Revert to R 3.2.x code of logicalSubscript in subscript.c?
Suharto,
If you're interested in performance with subscripting, you might want
to look at pqR (pqR-project.org). It has some substantial performance
improvements for subscripting over R Core versions. This is
especially true for the current development version of pqR (probably
leading to a new release in about a month).
You can look at a somewhat-stable snapshot of recent pqR development
2011 Dec 28
1
Subsetting a data frame vs. subsetting the columns
Hi all,
There seems to be rather a large speed disparity in subsetting when
working with a whole data frame vs. working with just columns
individually:
df <- as.data.frame(replicate(10, runif(1e5)))
ord <- order(df[[1]])
system.time(df[ord, ])
# user system elapsed
# 0.043 0.007 0.059
system.time(lapply(df, function(x) x[ord]))
# user system elapsed
# 0.022 0.008 0.029
2023 Dec 02
1
Try reproduce glmm by hand
Dear all,
In order to be sure I understand glmm correctly, I try to reproduce by
hand a simple result. Here is a reproducible code. The questions are in
_________________
Of course I have tried to find the solution using internet but I was not
able to find a solution. I have also tried to follow glmer but it is
very complicated code!
Thanks for any help.
Marc
# Generate set of df with nb
2009 Sep 27
0
Is channel local what I need?
On 1.6.0.16-rc1:
I'm using app_fax.so to send a fax, and then send a confirm.
'send' => 1.
Set(UniqueFile=/var/spool/asterisk/outgoing/call-${UNIQUEID}) [pbx_config]
2. System(env echo -e
"Channel:DAHDI/g0/........\\nContext:fax-tx\\nExtension: s\\nPriority:
1\\n" >${UniqueFile}) [pbx_config]
[ Context 'fax-tx' created by
2015 Apr 11
2
[LLVMdev] __eh_frame info changes in Clang?
Nick,
Do you happen to know why the version reported in 'dwarfdump
--eh-frame' for object files now differs when compiled with and
without -g? The test used in FSF gcc's configure produces a diff of..
% diff -u conftest.o.g.stripped.dwarfdump conftest.o.g0.stripped.dwarfdump
--- conftest.o.g.stripped.dwarfdump 2015-04-10 21:43:15.000000000 -0400
+++
2006 Apr 28
1
Odd internal vs. External dialplan issue
I have the following in my extensions.conf
[ext-local]
exten => _53XX,1,Wait(2)
exten => _53XX,2,NoOp,Dialing ${EXTEN} from ext-local-custom
exten => _53XX,3,Macro(dialout-trunk,2,${EXTEN},,)
This is used to match inbound caller-id for my legacy PBX.
It works fine for inbound calls, but not for internal SIP calls.
If I call from a SIP phone that is also in [ext-local], it looks like it