Displaying 20 results from an estimated 363 matches for "recurrently".
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2006 Oct 23
2
Recurrence plot in package "tseriesChaos"
Hi,
I'm a new user of the R package, and I need to generate recurrence plots for a set of 56 time series data. The package tseriesChaos has the function "recurr" that gives a plot. But what I really need are the recurrence plot parameters that are calculated from each plot (like %recur, %det, trend, etc...) and that can be stored dynamically in a output file for all the 56 datasets.
2010 Nov 13
0
using if statment and loops to create data layout of recurrent events
Hi ,
I have a data set with recurrence time (up to four) of myocardial infarction
(MI).
Part of the file is showing below:
Num1 Trt Sex Time T1 T2 T3 T4
1011 1 1 9
1211 0 1 59
3020 1 2 14 3
1245 0 1 18 12 16
3069 1 2 26 6 12 13
2051 0 1 53 3 15 46 51
The data consist of the following eight variables:
Num1 , patient number
Trt, treatment group (1=placebo and 2=drug)
Sex,
2011 Sep 16
3
Problematic If-Else statement
Hi guys,
My code (next 2 lines below) isn't doing what I'm expecting it to:
tmp <-
ifelse(uncurated$days_to_tumor_recurrence=="null","norecurrence","recurrence")
curated$recurrence_status <- tmp
I want the column "recurrence_status" in my output file to have values
"recurrence" (if the input value had a number in the
2017 Oct 12
1
Recurrence plots in R using different colours
Hello,
I am an absolutely beginner with regards to R, so forgive me for my
potentially very stupid questions.
I have been attempting to create recurrence plots using R. The data I am
using is based on a mutually exclusive and exhaustive coding scheme with
over 40 individual codes which can be assigned to 6 higher order categories.
When I carry out the usual rqa command, my plot is pretty much
2010 Dec 12
1
R Plots for Recurrent Events - Suggestions are needed
Hi,
I am wondering if there is a simple way to plot MCF(mean cumulative function) for recurrent events in R?
MCF (http://www.weibull.com/hotwire/issue57/relbasics57.htm)
And do you have some other recommendation in visualize recurrent events?
I did some research online. Some people use ggplot2 to plot MCF, but it requires some additional coding.
http://user2010.org/slides/Shentu.pdf
Your help
2011 Aug 04
2
survival probability estimate method
Hi, I was reading a paper published in JCO "Prediction of risk of distant recurrence using 21-gene recurrence score in node-negative and node-positive postmenopausal patients with breast cancer treated with anastrozole or tamoxifen: a TransATAC study" (ICO 2010 28: 1829). The author uses a method to estimate the 9-year risk of distant recurrence as a function of continuous recurrence
2010 Aug 09
2
recurrent events
Hello,
I have a cohort with approx 1,200 patients at the ages of 30-65 that had
their first myocardial infarction during 1992:
· They were in a follow up until 2005.
· About 400 of them died during this period of time (right censored)
· Each one of them had up to 4 mi recurrent events.
I am using the semi-parametric model in order to assess the relationship of
2015 Apr 01
2
[LLVMdev] Cast to SCEVAddRecExpr
Thanks Sanjoy.
> To be pedantic, "var[i<<1]" is not an add recurrence, but "&var[i <<
> 1]" is an add recurrence. I'll assume that's that you meant.
Yes, I meant the same.
> I think that is because in C, multiplication is nsw but left shift is
> not and so "i << 1" can legitimately sign-overflow but i * 2 cannot
>
2005 Jul 29
0
[LLVMdev] patch for pointer-to-array conversion
The enlosed patch for IndVarSimplify.cpp works even when the pointer
increment is deeply nested wrt pointer initialization, but note that it
needs to have loop structures preserved, as in the following:
int A[3000000], B[20000], C[100], Z;
volatile int I, J, K;
int main()
{
int i, j, k, *a, *b, *c;
for ( a = &A[0], i = 0; i != 300; i++ )
{
I++;
2003 Apr 17
1
Simulation of recurrent events
I'd like to program a simulation of recurrent events to test few models in
R. Is there anybody who has experience of that and could give me advice?
Your help is greatly appreciated!
Regards,
--
Peggy Ramlau
ramlau at gmx.de
+493080906358
Bitte l?cheln! Fotogalerie online mit GMX ohne eigene Homepage!
2013 Nov 02
2
[LLVMdev] SCEV and GEP NSW flag
----- Original Message -----
>
> On Oct 31, 2013, at 1:24 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>
> > Andy, et al.,
> >
> > If I start with C code like this:
> >
> > void foo(long k, int * restrict a, int * restrict b, int * restrict
> > c) {
> > if (k > 0) {
> > for (int i = 0; i < 2047; i++) {
> > a[i] =
2009 Jun 24
1
Coxph frailty model counting process error X matrix deemed singular
Hello,
I am currently trying to simulate data and analyze it using the frailty option in the coxph function. I am working with recurrent event data, using counting process notation. Occasionally, (about 1 in every 100 simulations) I get the following warning:
Error in coxph(Surv(start, end, censorind) ~ binary + uniform + frailty(subject, :
X matrix deemed to be singular; variable 2
My
2008 Jun 10
2
[LLVMdev] SCEV Question
Is there a document describing the guts of SCEV anywhere?
I have a simple question. When looking at a linear SCEVAddRecExpr
with a constant step recurrence (that is, getStepRecurrence returns
SCEVConstant), is the constant in terms of bytes or in terms of "index,"
in that the byte offset is calculated by taking the step and multiplying it
by the data size of any memory operation its
2009 Mar 17
2
General help on sample size based on recurrent events
Hello,
I have a general help question that some of you might be able able to help.
I would like to design a study (a two group comparison) based on reduction on events(say hospital admissions). In a previous study hospital admission rate of 140 admissions per 72 patients (over a 4 month period) has been observed. That is rate is about 1.9. In order to see the admission rate reduction of 50% over
2011 Jun 27
7
cumulative incidence plot vs survival plot
Hi, I am wondering if anyone can explain to me if cumulative incidence (CI) is
just "1 minus kaplan-Meier survival"? Under what circumstance, you should use
cumulative incidence vs KM survival? If the relationship is just CI =
1-survival, then what difference it makes to use one vs. the other?
And in R how I can draw a cumulative incidence plot. I know I can make a
Kaplan-Meier
2013 Nov 02
0
[LLVMdev] SCEV and GEP NSW flag
On Oct 31, 2013, at 1:24 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> Andy, et al.,
>
> If I start with C code like this:
>
> void foo(long k, int * restrict a, int * restrict b, int * restrict c) {
> if (k > 0) {
> for (int i = 0; i < 2047; i++) {
> a[i] = a[i + k] + b[i] * c[i];
> }
> }
> }
>
> Clang -O3 will produce code like
2006 Aug 31
0
sample size for recurrent events
Dear All,
I'm a relative novice in R, with some experience with S-plus and quite a
bit in SAS. In R and S-Plus, I've primarily worked with Frank Harrell's
Design and Hmisc libraries. I have R 2.3.1 for windows (XP) installed.
I have a project coming up in which the outcome will be recurrent
events. There will be right censoring and likely to be a good stack of
0s on the left.
2019 May 02
2
llvm is illegally vectorizing with a recurrence on skylake
Hi -- I have found a bug in an HPC code where llvm is vectorizing a loop on
Skylake that has an obvious recurrence. I derived a small test case based
on the original benchmark below:
/*****************************************************************/
static void __attribute__ ((always_inline)) one(
const int *restrict in, const int *const end,
const unsigned shift, int *const restrict index,
2003 Jan 17
1
Survr error
I am trying to analyse recurrent failure times using survfitr
from the survrec package. To do this, I need to "Create a survival
recurrent object" using Survr. But, when I do this, I get an error
"Error in Survr(r1d[, 1], r1d[, 5], r1d[, 6]) : data doesn't match".
Here, r1d[,1] is the identifier for each case, r1d[,5] is the time
of recurrence, r1d[,6] is the status
2017 Nov 22
2
[SCEV][ScalarEvolution] SE limitation impacting LV
Thanks for the feedback, Sanjoy.
> SCEV is fairly conservative around PHI nodes that aren't recurrences and aren't obviously equivalent to a min-max branch-phi idiom. Is that the limitation you're running into here?
Yes, that's exactly the problem. The problematic PHI nodes (%bc.resume.val and %bc.resume.val1) aren't either recurrences or related to min-max idioms. I