Displaying 20 results from an estimated 4864 matches for "raced".
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2013 Sep 21
1
Translating recoding syntax from SPSS to R
Colleagues,
I am in the process of learning R. I've been able to import my dataset (from Stata) and do some simple coding. I have now come to coding situation that requires some assistance. This is some code in SPSS that I would like to be able to execute in R:
if (race eq 1 and usborn=0) confused=1 .
if (race eq 2 and usborn=0) confused=1 .
if (race eq 1 and usborn=1) confused=0 .
if (race
2011 Oct 06
1
Urgent help needed for honours project - breaks between races in one year
Hi to anyone who is willing to help,
I have a csv. file which has 1999 horses as the rows and the age(in years)
of the horse at each race as columns. Ive read this file into R and called
it 'horses'.
Im trying to find the longest break between each race in the horse's first
year of racing. I already have a numeric called 'age.first' which is the age
at which each horse had its
2012 Apr 04
0
[LLVMdev] Publication: Data Races vs. Data Race Bugs: Telling the Difference with Portend
Hello,
We have a publication in ASPLOS 2012 that uses the LLVM
infrastructure. Is it possible to add this to the publications web
page: http://llvm.org/pubs/ ?
Publication: Data Races vs. Data Race Bugs: Telling the Difference with Portend
Link: http://dl.acm.org/citation.cfm?id=2150997
Abstract:
Even though most data races are harmless, the harmful ones are at the
heart of some of the worst
2008 Jan 22
2
Help - linear regression
Hi,
I am trying a linear regression model where the dependent variable is the size of the heart corrected for the patient's height and weight. This is labelled as LAVI. The independent variables are race (european or non-eurpoean), age, sex (male or female) of the patient and whether they have diabetes and high blood pressure. sample size 2000 patients selected from a community.
when I
2015 Oct 06
3
[PATCH 1/2] tests: Fix test-launch-race.
This test has been broken for a while. It is meant to test that when
the appliance cachedir is empty, two simultaneous runs of libguestfs
(both rebuilding the full appliance) will not cause conflicts, because
(eg) the locking in either supermin or libguestfs is not working.
However the test only set $TMPDIR, but the ./run script sets
$LIBGUESTFS_CACHEDIR which overrides $TMPDIR, so it was simply
2007 Feb 19
1
random effect nested within fixed effects (binomial lmer)
I have a large dataset where each Subject answered seven similar
Items, which are binary yes/no questions. So I've always used Subject
and Item random effects in my models, fit with lmer(), e.g.:
model<-lmer(Response~Race+Gender+...+(1|Subject_ID)+(1|
Item_ID),data,binomial)
But I recently realized something. Most of the variables that I've
tested as fixed effects are properties
2018 Nov 08
1
[nbdkit PATCH] nbd: Fix race during close
ThreadSanitizer [1] pointed out that in the nbd plugin, nbd_close() can
attempt close() in the main thread while the worker thread is still
attempting to start a read(). Normally, if the read() loses the race,
it will get a harmless EBADF that exits the worker thread (which is what
we want, as we are closing the connection anyway); but if another
connection happens to start in that window, we
2020 Jun 23
2
Races in llvm-objcopy
Hi Jake,
About a year ago in commit 5049c3422d26b2b68877307c41b35d7e6aae3235, you attempted to solve a race in llvm-objcopy. What was the race? I ask because unless "last change wins" is the result you want, then the race isn't solved. The problem is that `sys::fs::rename` is just a thin wrapper around POSIX semantics, and replacing an existing file is not an error.
Dave
2012 Mar 19
5
[LLVMdev] recognizing DTORs and vptr updates in LLVM.
On Mon, Mar 19, 2012 at 4:30 PM, Chris Lattner <clattner at apple.com> wrote:
>
> On Mar 19, 2012, at 2:52 PM, Kostya Serebryany wrote:
>
> Hello,
>
> While instrumenting LLVM IR in ThreadSanitizer (race detector), I need
> to distinguish between a store to vtable pointer (vptr) and any other
> regular store.
> This special treatment should be limited to class
2009 Aug 25
1
Clogit or LRM?
Hello
I believe that I'm getting very close in my modeling application.
I've come across a challenge that I am unable to solve and would really
appreciate the group's opinion.
I've been using the val.prob function from the Design library (Thanks
Frank!!) to both evaluate and visualize my model.
From the scores and graph, it appears as my model is very accurate in
2008 May 28
1
manipulating multiply imputed data sets
Hi folks,
I have five imputed data sets and would like to apply the same
recoding routines to each. I could do this sort of thing pretty
easily in Stata using MIM, but I've decided to go cold turkey on other
stats packages as a incentive for learning more about R. Most of the
recoding is for nominal variables, like race, religion, urbanicity,
and the like. So, for example, to recode race
2012 Nov 29
4
[PATCH] x86/hap: fix race condition between ENABLE_LOGDIRTY and track_dirty_vram hypercall
There is a race condition between XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY
and HVMOP_track_dirty_vram hypercall.
Although HVMOP_track_dirty_vram is called many times from qemu-dm
which is connected via VNC, XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY is
called only once from a migration process (e.g. xc_save, libxl-save-helper).
So the race seldom happens, but the following cases are possible.
2009 Sep 17
1
Grouped Logistic (Or conditional Logistic.)
Hi,
I'm not sure of the correct nomenclature or function for what I'm trying
to do.
I'm interested in calculated a logistic regression on a binary dependent
variable (True,False).
There are a few ways to easily do this in R. Both SVM and GLM work easily.
The part that I want to add is "group wise" awareness. So that the
algorithm computes the coefficients to maximize
2012 Mar 19
5
[LLVMdev] recognizing DTORs and vptr updates in LLVM.
Hello,
While instrumenting LLVM IR in ThreadSanitizer (race detector), I need
to distinguish between a store to vtable pointer (vptr) and any other
regular store.
This special treatment should be limited to class DTORs, so I should also
know when a function is a DTOR.
Rationale: need to distinguish benign and harmful races on vptr (
2006 Mar 19
4
elemental race conditions question
What''s the standard way to prevent race conditions in controllers?
Say user has many posts.
Post controller has action add_post that receives user id, post
controller find()s the user and while he is creating the post entry
an administrator deletes that user in a separate session. We cannot
assume the database checks foreign key integrity. How do you get that
right?
-- fxn
2004 Oct 13
1
"Centered" dummy variables; non zero/one coding
I'm uncertain if this is perhaps a stupid question:
I want to create "centered" dummy variables to use in a call to glm(), and
wondering if there's some slick method in R to do so. That is, rather than
have a factor, which results in a glm() fit returning coefficients
specifying either absence or presence of the factor, I'd like to fit a glm()
without intercept such that
2011 Mar 17
2
Incorrect degrees of freedom in SEM model using lavaan
I have been trying to use lavaan (version 0.4-7) for a simple path model,
but the program seems to be computing far less degrees of freedom for my
model then it should have. I have 7 variables, which should give (7)(8)/2 =
28 covariances, and hence 28 DF. The model seems to only think I have 13
DF. The code to reproduce the problem is below. Have I done something
wrong, or is this something I
2006 Oct 23
2
Help with "recode" and "factor" functions
I have a data set with seven inputs. Four of which are categorical. For my
midterm, my professor wants us to scale all the inputs. This means, I
pressume, that I have to use 'recode' or 'factor' to transform the
categorical data in numerical. For example, one input variable is
'race=(b,w,h,o)'. I just want to assign a numerical value to all
'b,w,h,o'. I
2007 Nov 27
2
lme object manipulation
Hello:
I have an lme object, say lme_res2, which was generated using the varIdent. I'm trying to extract the double 1.532940 from the object, but I can't find it by attributes(lme_res2) or attributes(summary(lme_res2)). How can I pull it out (so that I can save it to another variable)? Thanks.
Shin
Linear mixed-effects model fit by REML
Data: dat
Log-restricted-likelihood:
2010 Oct 02
3
Non-Parametric Adventures in R
I just started using R and I'm having all sorts of "fun" trying different
things.
I'm going to document the different things I'm doing here as a kind of case
study. I'm hoping that I'll get help from the community so that I can use R
properly.
Anyways, in this study, I have demographic data, drug usage data, and side
effect data. All of this is loaded into a csv