Displaying 20 results from an estimated 39 matches for "onset".
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unset
2010 Oct 22
2
superscript characters in title with '+'
Hi,
How can I get the '2+' into superscript in the following title:
'[Ca2+]i onsets'
I tried the command below, but it doesn't work. What am I missing?
hist(X, main=expression(([Ca*]i^2+) 'onsets'), xlab = 'sec')
--
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Sent from th...
2002 Dec 29
3
lowess + turnpoints = doubling integers?
Happy New Year, r-helpers!
I am using lowess to smooth a scatter plot,
xx<-lowess(xinput,f=.04) #defaults for other args
followed by
turnpoints(xx$y) #defaults for other args
I plot the smoothed result as well as turnpoints (using yy$tppos) on top of raw
data plot.
Result is exactly as expected, graphically.
For another purpose, I calcuate the difference between turnpoints (representing
2005 Oct 28
3
Use voice onset timing to identify voiceless
In increasing the computation time and bit rate with VBR:
Has anyone considered implementing the standard audiological
recognition technique of using the duration of zero energy (voice
onset timing) to identify the presence of voiceless sounds?
I would like a means of determining whether or not a given window will
be full of voiced speech or not.
Matt
--
The swallow may fly south with the sun or the house martin or the
plover may seek warmer climes in winter yet these are not strange...
2004 Nov 17
1
Re: variations on the theme of survSplit
...least for
> some examples below.
>
Ditto the following, for the case where there are multiple time-varying
(irreversible) binary covariates, here slicing as coarsely as possible.
#
# Create dataset for survival analysis with time-dependent covariate
# Gill-Anderson model
#
x <- data.frame(onset=c(46, 32, 53, 76, 64, 43),
case=c(1,1,1,0,0,0),
ooph=c(NA, 30, 38, 50, NA, NA),
ocp=c(1,1,0,0,1,0),
parity=c(2,0,1,3,3,2),
age.preg=c(28,NA,27,20,22,23))
make.dep <- function(onset, case, time.dep, covs=NULL) {
if...
2009 Oct 21
2
three related time series with different resolutions
I have three time series, x, y, and z, and I want to analyse the
relations between them. However, they have vastly different
resolutions. I am writing to ask for advice on how to handle this
situation in R.
x is a stimulus, and y and z are responses.
x is a rectangular pulse 4 sec long. Its onset and offset are known
with sub-millisecond precision. The onset varies irregularly -- it
doesn't fall on neat 1/2 sec or sec boundaries for example.
y is a sampled continuous waveform. It is highly noisy, and it is
actually well represented by samples 1/2 sec apart or so.
z is a very short pul...
2011 Jan 05
0
Onset HOBOware under Wine (Issue with a Windows/Java hybrid)
I'm trying to get HOBOware Pro (http://www.onsetcomp.com/products/software/), a tool that interfaces with a USB based datalogger, to work under Wine.
I have installed it, and it fails with the message:
Code:
Error occurred during initialization of VM
Could not reserve enough space for object heap
This seems to be fairly common among Java ap...
2007 Jun 25
2
changing the position of the y label (ylab)
...can I change the position of the ylab, after
enlarging the margins with par(mar=...)?
Here is the relevant code snippet
----
par(mar=c(5.1,5.1,4.1,2.1))
plot(c(1979,2003),c(40,50),ylim=c(1,73),lab=c(20,10,1),pch=21,col='blue',bg='blue',axes=FALSE,xlab="Years",ylab="Onset/Withdrawl
Date",font.lab=2)
box()
axis(1,las=2)
axis(2,las=2,labels=c('JAN','FEB','MAR','APR','MAY','JUN','JUL','AUG','SEP','OCT','NOV','DEC','JAN'),at=seq(from=1,to=73,by=6))
axis(3,labels=...
2003 Jul 26
1
A model for disease progression
...indicates the progression of a certain age-related
disease. At a certain point in time, a population was sampled; and I have
measurements for the age of each individual, and their disease stage.
(Disease stage is an ordered factor, none<A<B<C<D.)
I hypothesize that the rate of disease-onset depends on age, but that
(once the disease has started) its rate of progression depends on the
current disease stage and not on age.
I would like to plot the data in a sensible way, to let me see if this
hypothesis is reasonable, and to let me explore possible functional forms
for the two rates....
2011 Jun 03
1
Surv(): Stop time must be > start time, NA created
I am writing to get a better handle on a warning I am getting from a coxph analysis I am doing.
I am analysing age of onset of dementia *after* the onset of parkinson disease. My data looks like:
age.park age.dem age.death censor x1 x2 x3 x4
1 76 87 88 0 16 33 E3 E3
2 75 84 84 0 33 36 E3 E3
3 77 81 81 1 NA NA <NA> <NA>
4...
2010 Jan 09
1
Reducing the size of a large script top speed onset of execution
Colleagues,
(R 2.10 on all platforms)
I have a lengthy script (18000 lines) that runs within a graphical
interface. The script consists of 100's of function followed by a
single command that calls these functions (execution depends on a
number of environment variables passed to the script). As a result,
nothing is executed until the final line of code is read. It takes
15-20
2015 Aug 02
3
ayuda con anĂ¡lisis de supervivencia
...://www.dropbox.com/s/d96itird8ms42yx/dataframe.Rdata?dl=0>
sapply(levels(df0$bmi0),function (x){ #####SURVIVAL CURVE
dfx=filter(df0,bmi0==x)
surv2=Surv(dfx$bmi,dfx$MetS)
km2=survfit(surv2~dfx$apoe4)##start.time=20,type='kaplan')
plot(km2,lty=2:1,xlim=c(20,41),xlab='BMI at onset',main=x,mark.time = F)
legend('bottomleft',c('E4','no-E4'),lty=2:1)
cox=list(coxph(surv2~relevel(dfx$apoe4,ref='no-E4')))
})
sapply(levels(df0$bmi0),function (x){ #####CUMULATIVE HAZARDs
dfx=filter(df0,bmi0==x)
surv2=Surv(dfx$bmi,dfx$MetS)
km2=survf...
2006 Oct 17
2
RODBC and NULL values
...ual's
ODBC driver. I have all my data in Filemaker 8.5, but it is
automatically exported into PostgreSQL for analysis as Filemaker's ODBC
and JDBC access is awful, slow and has a tendency to crash.
I have disability data where for each patient there is a survival time
in years from disease onset to a particular disease stage, namely
unilateral support, bilateral support, wheelchair use, and death. Valid
values may include NULL (patient hasn't reached that stage), 0 (for
example, patient needed support immediately at disease onset), and any
positive integer.
When I query the database m...
2008 Nov 14
3
video chapters and subtitles in ogg containers
On Fri, Nov 14, 2008 at 5:11 AM, Hans J. Koch <hjk at linutronix.de> wrote:
>> I don't think anything currently in Ogg can do this. The closest I can
>> think of is CMML's clip concept, but you'd still have to parse the entire
>> stream to find them all.
>
> That's nearly useless for DVD-like applications.
I don't know. Wouldn't it work if
2006 May 19
2
Checking div generation technique
Hi guys,
just wanted to ask, on the onset of our page, we generate several div''s.
What we noticed on an intermittent connection is that several divs don''t
get to generate all the div''s sometimes so we had to reload our page.
Would you have any technique on how we can do this?
thanks
bing
--
Posted via http...
2004 Jun 29
1
strucchange-esque inference for glms ?
...sical
linear regression model."
i'd like to test/assess deviations from stability in the Poisson model.
is there a way to modify the strucchange package to suit my purposes, or should
i use be using another package, or is this a tough nut to crack? :)
my application is detecting the onset of a flu outbreak as new daily data
trickles in from each morning from local hospitals. seems to me like the same
sort of inferential goal that strucchange refers to as "monitoring of
structural change."
thank you in advance.
cheers,
alexis
2006 Jan 16
1
gplots
...sked before ... appologies in
advance
This - which comes out very nicely - better than the commercial stuff.
plotmeans (cdpy~Dodefordpy, Data = Dataset, connect = False, minbar = 1,
mean.labels = FALSE, col = "blue", barwidth = 1.5, barcol = "red",
ci.label = FALSE, xlab="Onset", pch = 15, par(las =2)).
Only one snag I want to order the X axis by the way it is sorted in the
data not by the n size group categories.
The data are sorted by the Dodefordpy categories - not mumeric -
confering to the way I'd like the x axis.
Hence how do I order the x axis not by n...
2007 Dec 09
2
Getting estimates from survfit.coxph
...ly)
> survfit(surv.results$cox)
Call: survfit.coxph(object = surv.results$cox)
n events median 0.95LCL 0.95UCL
136 96 6 6 8
#
# predict a curve for a patient: (these are the answers I really want
to extract)
#
> survfit(surv.results$cox, newdata=data.frame(onset=50, ic.duration=10, simple.msa=c('MSA','Not MSA'), autoimmune=F, carcinoma=F))
Call: survfit.coxph(object = surv.results$cox, newdata = data.frame(onset = 50,
ic.duration = 10, simple.msa = c("MSA", "Not MSA"), autoimmune = F,
carcinoma = F))
n ev...
2007 Feb 27
3
Preprocessor denoise. Does it work?
Jean-Marc Valin wrote:
> The noise suppressor will only attempt to remove stationary noise,
> such as thermal noise, fans, ... The AGC can indeed do strange
> things in these cases, but it's been improved in svn (compared to
> 1.2beta1).
OK, then the problem is that I misunderstood the feature. I assumed
that dynamic squelch was part of it, but it's really something more
2012 Nov 09
9
lm function - strange error
I am following a document teaching how to use regression and right at the
onset I get an R error. I understand that variables "conc" and "signal"
should have the same length but I am using the what R manual suggests to
drop the error and it is not cooperating. What gives? The manual says
that the default is na.ombit by the way, not that it's additi...
2008 Oct 15
1
combining same-day lab measurements with 'apply'
...me that I could use strsplit as well..).
It may be irrelevant, but the 'date' variable is a Date class object.
I've tried first converting this to a character object but didn't get
anywhere. Further, I'll use the dates later with difftime to figure
the subjects' age at the onset of their condition, so I'd like to
avoid converting between classes too much.
Any advice would be greatly appreciated. Here is the code to build
the sample data and the working for loop as well:
> dum <- data.frame(
+ id = c(2,2,2,3,4,4,4,4,5,5),
+ x = sample(15:30,length(id)),...