similar to: survival probability estimate method

Displaying 20 results from an estimated 3000 matches similar to: "survival probability estimate method"

2005 Jun 22
1
analyzing suvival data using splines (a.k.a., piecewise log-hazard-ratio models)
I'm looking for software that makes plots such as fig 4 (a)-(e), fig 5 anf fig 7 of Gray, Robert, "Flexible Methods for Analyzing Survival Data Using Splines, with Applications to Breast Cancer Prognosis," 1992, J Am Stat Assoc, pp 942-51. In other words, I'm looking for software that takes survival data and a continuous covariate as input and computes a curve giving log hazard
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.
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
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
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
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 >
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] =
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
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 Feb 16
1
How do i compute predicted failure time from a cox model?
Given a cox model: library(Hmisc); library(survival); (library(Design); cox.model=cph(Surv(futime, fustat) ~ age, data=ovarian, surv=T) str(cox.model) What I need is the total estimated time until failure (death), not the probability of failing at a given time (survival probability), or hazard etc, which is what I get from survest and predict for example. I suspect the answer is
2013 Apr 19
2
NAMESPACE and imports
I am cleaning up the rms package to not export functions not to be called directly by users. rms uses generic functions defined in other packages. For example there is a latex method in the Hmisc package, and rms has a latex method for objects of class "anova.rms" so there are anova.rms and latex.anova.rms functions in rms. I use:
2012 Dec 10
3
[LLVMdev] [PATCH] Teaching ScalarEvolution to handle IV=add(zext(trunc(IV)), Step)
Hello all, I wanted to get some feedback on this patch for ScalarEvolution. It addresses a performance problem I am seeing for simple benchmark. Starting with this C code: 01: signed char foo(void) 02: { 03: const int count = 8000; 04: signed char result = 0; 05: int j; 06: 07: for (j = 0; j < count; ++j) { 08: result += (result_t)(3); 09: } 10: 11: return result; 12: } I
2018 Jul 07
2
LoopVectorize fails to vectorize more complex loops
Hello. Could you please tell me why the first loop of the following program (also maybe the commented loop) doesn't get vectorized with LoopVectorize (from a recent LLVM build from the SVN repository from Jun 2018)? typedef short TYPE; TYPE data[1400][1200]; void kernel_covariance(int m, int n, TYPE mean[1200]) { int i, j, k; for (j = 0; j < m; j++) { mean[j] =
2008 Jun 10
0
[LLVMdev] SCEV Question
Hi, > Is there a document describing the guts of SCEV anywhere? If you're looking for theoretical background of SCEV (chains of recurrences algebra), you may take a look at this article: http://citeseer.ist.psu.edu/vanengelen00symbolic.html I'm not aware of any LLVM-specific document describing SCEV. > I have a simple question. When looking at a linear SCEVAddRecExpr > with a
2008 Dec 30
3
integration of tzinfo with icalendar
My interest in icalendar is more on the ical generation side instead of the ical parsing side. As such, I did a bit of work on a tzinfo mixin that will generate the timezone rules based on the tzinfo gem. This lets you do the following: estart = DateTime.new(2008, 12, 29, 8, 0, 0) eend = DateTime.new(2008, 12, 29, 11, 0, 0) tstring = "America/Chicago" tz =
2018 Jun 11
2
LoopVectorize fails to vectorize code with condition on reduction
Hello. I'm not able to vectorize this simple C loop doing basically what could be called predicated sum-reduction: #define NMAX 1000 int colOccupied[NMAX]; void Func(int N) { int numSol = 0; for (int c = 0; c < N; c++) { if (colOccupied[c] == 0) numSol++; } return numSol; } The compiler
2012 Dec 17
0
[LLVMdev] [PATCH] Teaching ScalarEvolution to handle IV=add(zext(trunc(IV)), Step)
On Mon, Dec 10, 2012 at 2:13 PM, Matthew Curtis <mcurtis at codeaurora.org> wrote: > Hello all, > > I wanted to get some feedback on this patch for ScalarEvolution. > > It addresses a performance problem I am seeing for simple benchmark. > > Starting with this C code: > > 01: signed char foo(void) > 02: { > 03: const int count = 8000; > 04: signed char
2011 Aug 05
1
a question
Hi, I read on a paper the below statement, don't know how that was calculated. Basically, there are 2 continuous variables x1 and x2, as independent variable for predicting cancer recurrence. So this is a survival analysis. Now the author try to check the correlation between x1 and x2. He calculated Spearman rand correlation (~0.22), then he had the following statement: "Only
2009 Apr 14
1
Function call error in cph/survest (package Design)
Dear UseR, I do not know if this a problem with me, my data or cph/survest in package design. The example below works with a standard data set, but not with my data, but I cannot locate the problem. Note that I am using an older package of survival to avoid a problem with the newly renamed function in survival meeting Design. Dieter # First, check standard example to make sure library(Design)
2006 May 22
2
[vpim] Some small rrule.rb changes
Quoting cosmin at speakeasy.net, on Sat, May 20, 2006 at 11:40:06AM -0700: > I did some changes to the rrule.rb. I needed some getters/setters for > each of the attributes from RRULE. Attached is the diff. If it makes > sense to you to be included in the lib, please do so. If you think > it''s worth to be included, I can add more validation to the setters. I