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Hello all, I've 2 strings that representing the start and end values of a date and time. For example, time1 <- c("21/04/2005","23/05/2005","11/04/2005") time2 <- c("15/07/2009", "03/06/2008", "15/10/2005") as.difftime(time1,time2) Time differences in secs [1] NA NA NA attr(,"tzone") [1] "" How can i

...ossible to use on some OSes, except for colon, <return> and <tab> all of them can be inserted into a filename by a user on a Mac. Colon is the directory marker (like"/" on windows) for a Mac, and I have seen programs insert <return> and <tab> into filenames. Chip Scheide Systems Coordinator Children's Hospital of Pittsburgh ------ Notify Immediately if you do NOT receive this email.

Hello, I am trying to compute the mdeian of the survival time from the function survfit: > fit <- survfit(Surv(time, status) ~ 1) > fit Call: survfit(formula = Surv(time, status) ~ 1) records n.max n.start events median 0.95LCL 0.95UCL 111 111 111 20 NA NA NA The results is NA? the fit$surv gives values between 1 and 0.749! Am I doing this correct?

Dear all, I am fitting a GLM similar to library(MASS) anorex.1 <- glm(Treat~Postwt+Prewt,family = binomial, data = anorexia) I have found two ways of computing the p-value of the fitted model: pval1 <- 1-pchisq(anorex.1$deviance,anorex.1$df.residual) pval2 <- 1-pchisq(anorex.1$null.deviance - anorex.1$deviance, anorex.1$df.null - anorex.1$df.residual) pval2 is

...00-2006 Netfilter Core Team [ 35.475210] ppdev: user-space parallel port driver [ 39.140866] colord-sane[2701]: segfault at 0 ip 00007fc826bc4884 sp 00007fff6a44fea0 error 4 in libc-2.13.so[7fc826b1f000+17d000] [ 44.011341] xenbr0: port 1(eth1) entered forwarding state Thanks for all, Allan Scheid _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel