Displaying 20 results from an estimated 6000 matches similar to: "survival curve for only certain values of a factor"
2009 Feb 17
3
Survival-Analysis: How to get numerical values from survfit (and not just a plot)?
Hi!
I came across R just a few days ago since I was looking for a toolbox
for cox-regression.
I?ve read
"Cox Proportional-Hazards Regression for Survival Data
Appendix to An R and S-PLUS Companion to Applied Regression" from John Fox.
As described therein plotting survival-functions works well
(plot(survfit(model))). But I?d like to do some manipulation with the
survival-functions
2007 Oct 15
2
some question about partial prediction in survival
Hi there:
i got a problem to get the prediction from a model recently. for
example if i use a survival analysis to predict the risk. i use the code
like below: i found the the prediction is not equal to (coef * x + coef
* sex) , could someone help me with why this happened? and can someone
explain to me how this command "predict(f, type="terms")" works? is
every partial
2006 Jun 10
1
Calculating survival for set time intervals
Hello friends and fellow R users,
I have successfully tabulated and entered my survival data into R and
have generated survival curves. But I would like to be able to determine
what the survival rates are now at one month, three months, six months
and one year.
I have a data set, via.wall, which I have entered into R, and which
generates the following Surv object:
Surv(Days,Status==1)
[1]
2006 Jul 11
2
new object
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2011 Apr 18
1
time dependent hazard ratios
Hi, I am new to time-dependent Cox model to estimate time dependent hazard
ratios. Let me use aml dataset from survival package:
> aml3<-survSplit(aml2,cut=c(5,10,20),end="time",start="start",
event="status",episode="i")
If I want to esimate hazard ratio for each of the time intervals 0-5, 5-10,
10-20 and >=20, would the following calculate
2007 Jun 17
1
error bars on survival curve
I am using plot(survfit(Surv(time,status) ~...) and would like to add
error bars rather than the confidence intervals. Am I able to do this
at specified times? e.g. when time = 20 & 40.
leukemia.surv <- survfit(Surv(time, status) ~ x, data = aml)
plot(leukemia.surv, lty = 2:3,xlim = c(0,50))
#can i add error bars at times 20 & 40?
legend(100, .9, c("Maintenance", "No
2006 Jan 20
3
command in survival package
Hi there,
I have a question about one command sentence when I follow the example
in the book of "Survival analysis in S":
> aml1<-aml[aml$group==1]
but I got the error warning: NULL data frame with 23 rows
Thus, I couldn't keep going on the next command:
esf.fit<-survfit(Surv(aml1,status)~1).
and also when I try
> aml1<-aml[aml$group==1,]
2019 Nov 21
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 12:03 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
>
> On Thu, Nov 21, 2019 at 11:14 AM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Wed, Nov 20, 2019 at 10:36:31PM +0100, Karol Herbst wrote:
> > > with the branch and patch applied:
> > >
2019 Nov 21
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 12:03:52PM +0100, Rafael J. Wysocki wrote:
> On Thu, Nov 21, 2019 at 11:14 AM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Wed, Nov 20, 2019 at 10:36:31PM +0100, Karol Herbst wrote:
> > > with the branch and patch applied:
> > >
2010 Dec 27
1
Problem using pkg "survival"
Hello all.
I've been attempting to utilize the "survival" pkg (
http://cran.r-project.org/web/packages/survival/index.html), while reading
through this guide (http://www.ms.uky.edu/~mai/Rsurv.pdf). I figured working
through the guide would be the best way to go, before attempting my own
data.
I tried to utilize the Kaplain-Meier estimator as shown in the guide:
2019 Nov 22
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Fri, Nov 22, 2019 at 12:30 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
>
> On Fri, Nov 22, 2019 at 11:36 AM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Thu, Nov 21, 2019 at 11:39:23PM +0100, Rafael J. Wysocki wrote:
> > > On Thu, Nov 21, 2019 at 8:49 PM Mika Westerberg
> > > <mika.westerberg at intel.com>
2019 Nov 20
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Wed, Nov 20, 2019 at 1:06 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
>
> On Wed, Nov 20, 2019 at 12:51 PM Karol Herbst <kherbst at redhat.com> wrote:
> >
> > On Wed, Nov 20, 2019 at 12:48 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
> > >
> > > On Wed, Nov 20, 2019 at 12:22 PM Mika Westerberg
> > > <mika.westerberg
2019 Nov 21
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 01:46:14PM +0200, Mika Westerberg wrote:
> On Thu, Nov 21, 2019 at 12:34:22PM +0100, Rafael J. Wysocki wrote:
> > On Thu, Nov 21, 2019 at 12:28 PM Mika Westerberg
> > <mika.westerberg at intel.com> wrote:
> > >
> > > On Wed, Nov 20, 2019 at 11:29:33PM +0100, Rafael J. Wysocki wrote:
> > > > > last week or so I found
2019 Nov 21
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 1:53 PM Karol Herbst <kherbst at redhat.com> wrote:
>
> On Thu, Nov 21, 2019 at 12:46 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Thu, Nov 21, 2019 at 12:34:22PM +0100, Rafael J. Wysocki wrote:
> > > On Thu, Nov 21, 2019 at 12:28 PM Mika Westerberg
> > > <mika.westerberg at intel.com> wrote:
2019 Nov 21
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Wed, Nov 20, 2019 at 11:29:33PM +0100, Rafael J. Wysocki wrote:
> > last week or so I found systems where the GPU was under the "PCI
> > Express Root Port" (name from lspci) and on those systems all of that
> > seems to work. So I am wondering if it's indeed just the 0x1901 one,
> > which also explains Mikas case that Thunderbolt stuff works as devices
>
2019 Nov 21
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 11:39 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
>
> On Thu, Nov 21, 2019 at 8:49 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Thu, Nov 21, 2019 at 04:43:24PM +0100, Rafael J. Wysocki wrote:
> > > On Thu, Nov 21, 2019 at 1:52 PM Mika Westerberg
> > > <mika.westerberg at intel.com>
2019 Nov 20
3
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Wed, Nov 20, 2019 at 12:48 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
>
> On Wed, Nov 20, 2019 at 12:22 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Wed, Nov 20, 2019 at 11:52:22AM +0100, Rafael J. Wysocki wrote:
> > > On Wed, Nov 20, 2019 at 11:18 AM Mika Westerberg
> > > <mika.westerberg at intel.com>
2019 Nov 21
3
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 04:43:24PM +0100, Rafael J. Wysocki wrote:
> On Thu, Nov 21, 2019 at 1:52 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Thu, Nov 21, 2019 at 01:46:14PM +0200, Mika Westerberg wrote:
> > > On Thu, Nov 21, 2019 at 12:34:22PM +0100, Rafael J. Wysocki wrote:
> > > > On Thu, Nov 21, 2019 at 12:28 PM Mika
2019 Nov 21
5
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 12:34:22PM +0100, Rafael J. Wysocki wrote:
> On Thu, Nov 21, 2019 at 12:28 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Wed, Nov 20, 2019 at 11:29:33PM +0100, Rafael J. Wysocki wrote:
> > > > last week or so I found systems where the GPU was under the "PCI
> > > > Express Root Port" (name
2006 May 05
2
How to access results of survival analysis
Hi List,
A friend of mine recently asked the same question as Heinz T?chler. Since
I've already written the code I'd like to share with the list.
# x is an object returned by "survfit";
# "smed" returns a matrix of 5 columns of
# n, events, median, 0.95LCL, 0.95UCL.
# The matrix returned has rownames as the
# group labels (eg., treatment arms) if any.
smed <-