Displaying 20 results from an estimated 6127 matches for "age".
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2009 Nov 12
1
XML: Reading transition matrices into R
Hello,
from a software I have the following output in xml (see below):
It is a series of matrices, for each age one. I have 3 categories
(might vary in the application), hence, 3x3 matrices where each
element gives the probability of transition from i to j. I would like
read this data into R (preferably in a list, where each list element
is one of the age specific matrices) and - after altering the values
in...
2016 Jan 16
2
Does Xapian support query string like "(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: 35..50)"?
Hi, All
Does Xapian support query string like "(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: 35..50)"?
I?want?to?get?the?results?with?age?range?from?1?to?25, 35?to?50.
I?tested,?"(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: 35..50)" doesn't work.
Thanks
Best wish-Rafael Gu
2005 Sep 13
11
if() command
Hi everyone !
Could you please help me with this problem ?
I??ve trying to write a code that assign to a variable the content from
another, but all I??ve got is a message error. For example:
if (age <=10) {group == 1}
else if (age > 10 & age <= 20) {group == 2}
else {group == 3}
Syntax error
Or
if (age <=10) {group == 1}
else (age > 10 & age <= 20) {group == 2}
else {group == 3}
Syntax error
I know that is possible to find the solutio...
2007 Nov 02
3
writing a categorical var. with condition
Hello,
I want to create a new variable which includes 4 age categories in this way:
if (age>=12 && age<32) age1==1
if (age>=32 && age<52) age1==2
if (age>=52 && age<72) age1==3
if (age>=72 && age<100) age1==4
but I get the results only for the first observation.
how can I apply this condition to...
2006 Feb 15
1
no convergence using lme
Hi. I was wondering if anyone might have some suggestions about how I can
overcome a problem of "iteration limit reached without convergence" when
fitting a mixed effects model.
In this study:
Outcome is a measure of heart action
Age is continuous (in weeks)
Gender is Male or Female (0 or 1)
Genotype is Wild type or knockout (0 or 1)
Animal is the Animal ID as a factor
Gender.Age is Gender*Age
Genotype.Age is Genotype*Age
Gender.Genotype.Age is Gender*Genotype*Age
If I have the intercept (but not the slope) as a rando...
2010 Apr 23
2
Problem with parsing a dataset - help earnestly sought
Dear fellow R-help members,
I hope to seek your advice on how to parse/manage a dataset with hundreds of
columns. Two examples of these columns, 'cancer.problems', and
'neuro.problems' are depicted below. Essentially, I need to parse this into
a useful dataset, and unfortunately, I am not familiar with perl or any such
language.
data <- data.frame(id=c(1:...
2008 Jul 20
2
fill in area between 2 lines with a color
...ad
any luck using polygon or rect. (In reality, I'd like to do this for twice
- once for a low group and once for a high group - and then I'd like to plot
a set of data points for a 'normal' group together with these 2 grey areas.)
Here's a simple example of the 2 lines:
age=1:10
y.low=rnorm(length(age),150,25)+10*age
y.high=rnorm(length(age),250,25)+10*age
plot(age,y.high,type='n',ylim=c(100,400),ylab='Y Range',xlab='Age (years)')
lines(age,y.low,col='grey')
lines(age,y.high,col='grey')
Is it possible to fill the area between t...
2009 Apr 24
3
Help with for/if loop
I have a set of data that includes various data columns. One if the survival
time and another if a continuous variable of ages. I want to put the ages
into intervals so that I can then perform the Kalpan Meier test. I am trying
to use the following code to build a column with the age group numbers in
agecatagory<-c( )
for (i in 1:137)
{
{
if(age[i]<=46) {agecat[i]<-1}
if(age[i]>46 & age[i]<= 58) {agec...
2006 Jul 21
1
Parameterization puzzle
Consider the following example (based on an example in Pat Altham's GLM
notes)
pyears <- scan()
18793 52407 10673 43248 5710 28612 2585 12663 1462 5317
deaths <- scan()
2 32 12 104 28 206 28 186 31 102
Smoke <- gl(2,1,10,labels=c("No","Yes"))
Age <- gl(5,2,10,labels=c("35-44","45-54","55-64","65-74","75-84"),
ordered=TRUE)
mod1.glm <- glm(deaths ~ Age * Smoke + offset(l),family=poisson)
summary(mod1.glm)
age <- as.numeric(Age)
mod2.glm <- aso1.glm <- glm(deaths ~ p...
2002 Jun 06
2
More ext3 fileserver woes ...
...calculations suggest that the journal on one of
these machines would take 10 minutes to fill under a very high (but
realistic) load. Under normal load I would expect longer.
This seems to suggest that there are dirty buffers lying around that
are more than 10 minutes old. Given that bdf_prm.b_un.age_buffer is
the default 3000, or 30 seconds, this seems like a problem.
I have resolved the problem for now by running "sync" every minute
which seems to work, but is hardly elegant.
I'm not in a position at the moment to spend time testing whether the
inefficacy of bdflush is ext3 sp...
2011 Nov 04
4
How to delete only those rows in a dataframe in which all records are missing
...missing, as opposed to the first row in which no records are missing or the third one, in which only one record is missing. How can I get R identify the row in which all records are missing? Or, how can I get R delete/omit only this row?
Thanks in advance,
José
José Iparraguirre
Chief Economist
Age UK
T 020 303 31482
E Jose.Iparraguirre@ageuk.org.uk<mailto:Jose.Iparraguirre@ageuk.org.uk>
Tavis House, 1- 6 Tavistock Square
London, WC1H 9NB
www.ageuk.org.uk<http://www.ageuk.org.uk> | ageukblog.org.uk<http://ageukblog.org.uk/> | @AgeUKPA<http://twitter.com/ageukpa>
Ag...
2016 Apr 15
4
simple interactions
I'd like to get interaction terms in a model to be in another form. Namely, suppose I had
variables age and group, the latter a factor with levels A, B, C, with age * group in the
model. What I would like are the variables "age:group=A", "age:group=B" and
"age:group=C" (and group itself of course). The coefficients of the model will then be
the age effect in group...
2006 Jan 10
2
lmer(): nested and non-nested factors in logistic regression
Thanks to some help by Doug Bates (and the updated version of the Matrix
package), I've refined my question about fitting nested and non-nested
factors in lmer(). I can get it to work in linear regression but it
crashes in logistic regression. Here's my example:
# set up the predictors
n.age <- 4
n.edu <- 4
n.rep <- 100
n.state <- 50
n <- n.age*n.ed...
2005 Dec 08
3
Reshaping data
Dear all,
given I have data in a data.frame which indicate the number of people in
a
specific year at a specific age:
n <- 10
mydf <- data.frame(yr=sample(1:10, size=n, replace=FALSE),
age=sample(1:12, size=n, replace=FALSE),
no=sample(1:10, size=n, replace=FALSE))
Now I would like to make a matrix with (in this simple example)
10 columns (for the years) and 12 rows (...
2006 May 01
4
table of means/medians across bins used for a histogram
Hi
I am trying to get a table of means of parameter 1
across BINS of parameter 2.
I am working in proteomics and a sample of my data is
as follows
cluster-age clock-rate(evolutionary rate) scopclass
0.002 10 A
0.045 0.1 B
0.13 15 A
0.15 34 D
....
....
....
....
Scop class has only 9 distinct categories (A-I)
Wher...
2005 May 26
1
Survey and Stratification
...omprehend the concept of
stratification and apply it with Survey to a small example. My question
is more of theoretic nature, so I apologize if this does not fully fit
this board's intention, but I have come to a complete stop in my efforts
and need an expert to help me along. Please help:
age<-matrix(c(rep(1,5), rep(2,3), 1:8, rep(3,5), rep(4,3), rep(5,5),
rep(3,3), rep(15,5), rep(12,3), 23,25,27,21,22, 33,27,29), ncol=6, byrow=F)
colnames(age)<-c("stratum", "id", "weight", "nh", "Nh", "y")
age<-as.data.frame(age)
##...
2013 Jan 24
1
predicted HR in coxph with psline
...ference value
for each of predictions type (linear predictor, risk and terms) is the mean
covariate within strata.
If the psline is specified for the covariate, what's the reference value
for the predictions?
I did some test code below:
###
par(mfrow = c(1,3))
test = coxph(Surv(time, status) ~ age, cancer)
test2 = coxph(Surv(time, status) ~ pspline(age, df=2), cancer)
test3 = coxph(Surv(time, status) ~ pspline(age, df=5), cancer)
pptest3=predict(test3, type="lp")
pptest2= predict(test2, type="lp")
pptest = predict(test, type="lp")
plot(cancer$age, exp(pptest))
a...
2003 May 07
1
[R ] Query : problems with the arithmetic operator "^" with function "lme" and "lmList"
Dear all,
I've got a problem in including square variables in lme and lmlist
functions. I've tried to work on Oxboys data of Pinheiro and
Bates'book, which consist of the heights of 26 boys, each mesured on
nine different occasions :
> Oxboys
Grouped Data: height ~ age | Subject
Subject age height Occasion
1 1 -1.0000 140.50 1
2 1 -0.7479 143.40 2
3 1 -0.4630 144.80 3
4 1 -0.1643 147.10 4
5 1 -0.0027 147.70 5
...
A quadratic model in "age" would be fit with lmList
(heigh...
2010 Feb 25
1
error in lmLists in lme4 package (bug?)
Hello,
I am trying to use lmLists in the lme4 package and copying over very
standard code from the nlme package given in 'Mixed-Effects Models in S
and S-Plus'. It appears to not accept an 'I(age-11)' in the formula,
though it will accept the formula with out the subtraction of 11 from
age. This seems like it would be a bug, since...
2016 Jan 17
0
Does Xapian support query string like "(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: 35..50)"?
On 16 January 2016 at 19:15, ??? <shoutrain_goo at aliyun.com> wrote:
> Hi, All
> Does Xapian support query string like "(age: 1..25) OR (age: 35..50)"? or
> "(age: 1..25) - (age: 35..50)"?
> I want to get the results with age range from 1 to 25, 35 to 50.
>
> I tested, "(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age:
> 35..50)" doesn't work.
> Thanks
>...