search for: lifet

Dear list: I have tried demography package in my Ubuntu(10.04). What I interested in was lifetable analysis. Chiang(1984)'s reference have been copied to steeper my learning curve. step by step, the example presented by the textbook also have been examined. In the course I find that the paramter "fraction of last age intervl of life" could not be take as a option in the module...

...7323D5 at yale.edu> MIME-version: 1.0 From: Diana Fischer <diana.fischer at yale.edu> To: maechler at stat.math.ethz.ch Subject: R-Project Date: Wed, 25 Oct 2000 11:42:36 -0500 I briefly looked at the R documentation of available statistical procedures. It appears that there are no "lifetable" or survivorship-failure model procedures. Am I correct? Thanks, Diana B. Fischer, Ph.D. Dept. Therapeutic Radiology Yale School of Medicine ------- end of forwarded message ------- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Re...

Dear all, in the past I have been able to access websites with data directly. For example the following code works nicely mydata <- read.table("http://www.lifetable.de/data/MPIDR/POL_2004.txt", header=TRUE) But what happens if I need a username and password (a different site)? How do I do that? Or is it not possible to this in R? I tried something like this mydata.frame <- read.table("myusr:mypswd at www.mydata.com/adir/afile.txt") b...

Hello, I have a question about the function lifetab in package KMsurv. The description of the output value surv says "the estimated survival function at the start of the intervals". Are these estimates the ones calculated via Kaplan-Meier probability of survival ? Thanks in advance! -- View this message in context: http://r.789695.n...

...a statistic, px, the proportion of a cohort that survives through the interval x:x+1. I have the vector from which the calc is to be made but I can't figure out how to tell R to take the current value and divide it by the next value. The formula is P0=L1/LO The following is an example of the lifetable I'm constructing: example=as.vector(c(8,2,1,5,6,7,7,0,8,10,13,8,11,11,11,2,7,1,5,6,8,6)) #prime k=1 #Deaths# deaths=numeric(k) for(k in 0:max(example)) { deaths[k]=sum(example==k)} #adjust for no zero!!# deaths=c(0,deaths) #Alive, Kx# alive=sum(deaths)-cumsum(deaths) #Day, or age class,x...

Dear all, I am having a (really) hard time getting pyears to work together with a ratetable to give me the number of expected events (deaths). I have the following data: dos, date of surgery, as.Date dof, date of last follow-up, as.Date dos, date of surgery, as.Date sex, gender, as.factor (female,male) ev, event(death), 0= censored at time point dof, 1=death at time point dof Could someone

...rvival distributions between different groups. I understand that the medical field is most often dealing with censored data and that survival analysis, at least in the package survival, is largely built around these conventions and differs from a classical biological perspective. For example, for lifetable analysis of insects there is often no need to estimate survival using a Kaplan-Meir estimate because it is relatively easy to follow a cohort of individuals through the entire course of life. Thus I question the appropriateness of using survdiff in my analysis; I have exact data yet I would be...

CRAN (and crantastic) updates this week New packages ------------ * allan (1.0) Alan Lee http://crantastic.org/packages/allan Automates Large Linear Analysis Model Fitting * andrews (1.0) Jaroslav Myslivec http://crantastic.org/packages/andrews Andrews curves for visualization of multidimensional data * anesrake (0.3) Josh Pasek http://crantastic.org/packages/anesrake This