search for: wbs

Hello 1/ 'priors' is a table looking like: "W123" "T678" "S789" 23 42 11 12 35 9 etc 2/ WBS <- labels(priors) gives me a result of class list and length 1 looking like: "W123" "T678" "S789" I want to read W123 into X[1] as W, T687 into X[2] as T and S789 into X[3] as S using substr(X[1],1,1) but I'm having trouble extracting each group of 4 digits...

...with a relatively straightforward problem that I am struggling with? I am simply trying to plot a baseline survivor and hazard function for a simple data set of lung cancer survival where `futime' is follow up time in months and status is 1=dead and 0=alive. Using the survival package: lung.wbs <- survreg( Surv(futime, status)~ 1, data=lung, dist='weibull') plot (lung.wbs) Returns the error msg: Error in xy.coords(x, y, xlabel, ylabel, log) : x and y lengths differ Using the Design package: lung.wbd <- psm (Surv (futime, status)~ 1, dist="weibull&quot...

Dear all - I have followed the thread the reply to which was lead by Thomas Lumley about using pweibull to generate fitted survival curves for survreg models. http://tolstoy.newcastle.edu.au/R/help/04/11/7766.html Using the lung data set, data(lung) lung.wbs <- survreg( Surv(time, status)~ 1, data=lung, dist='weibull') curve(pweibull(x, scale=exp(coef(lung.wbs)), shape=1/lung.wbs $scale,lower.tail=FALSE),from=0, to=max(lung$time)) lines(survfit(Surv(time,status)~1, data=lung), col="red") Assuming this is correct, why does the inf...

Hallo all, I`ve read a lot of things in this forum about an Excel export via R. It is no problem to export my data frames via write.table or write.xls (xls or csv), but some things are not very convenient for me: I always have to adjust the column with to see all the numbers or the text and there is no frame between the cells. And I missing the possibility to make some headers bold or coloured.

Hi All: the package "MuMIn" can be used to select the model based on AIC or AICc. The code is as follows: data(Cement) lm1 <- lm(y ~ ., data = Cement) dd <- dredge(lm1,rank="AIC") print(dd) If I want to select the model by BIC, what code do I need to use? And when to select the best model based on AIC, what the differences between the function "dredge" in

...> > I have followed the thread the reply to which was lead by Thomas > Lumley about using pweibull to generate fitted survival curves for > survreg models. > > http://tolstoy.newcastle.edu.au/R/help/04/11/7766.html > > Using the lung data set, > > data(lung) > lung.wbs <- survreg( Surv(time, status)~ 1, data=lung, dist='weibull') > curve(pweibull(x, scale=exp(coef(lung.wbs)), shape=1/lung.wbs > $scale,lower.tail=FALSE),from=0, to=max(lung$time)) > lines(survfit(Surv(time,status)~1, data=lung), col="red") > > Assuming this is co...

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Hello list. I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without modifications. How did I try it? Created a (non-root) build environment (not a mock ) Installed the kernel.scr.rpm and did a rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee prep-out.log The build failed at the end: Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL Checking

Hi All: Recently I am researching my dissertation about the quantile model selection by bayesian approach. I have the dependent variable(return) and 16 independent variables and I need to select the best variable for each quantile of return. And the method I used is the bayesian approach, which is based on calculating the posterior distibution of model identifier. In other words, I need to obtain

Hi, I'm trying to call some of R's statistical functions within my C++ code, developed under VS2005, but I can't seem to find out how to do it. I tried RInside and Rcpp, but they either don't work on Windows or with VS. Is there a way to do this? Appreciate the help. Regards,