search for: tdist

Hello all... I am really new to statistics and I am trying to figure out a way to apply Chauvenet's criterion using the t-distribution on a set of numbers in perl. I was unable to find a TDIST and TINV function for perl. I am getting these functions from Excel. So, I figured that I would install R and call it from perl, overkill for what I need I know. I am having a hard time figuring out how to mimick the Excel TDIST and TINV functions in R. Can somebody give me a hand with this? T...

Dear all, The help page on the t distribution says: The most used applications are power calculations for t-tests: Let T= (mX - m0) / (S/sqrt(n)) where mX is the `mean' and S the sample standard deviation (`sd') of X_1,X_2,...,X_n which are i.i.d. N(mu,sigma^2). Then T is distributed as non-centrally t with `df'= n-1 degrees of freedom and non-centrality

...ates that the gbm function can accomodate only two class problems when referring to the distribution parameter. >From gbm help re: the distribution parameter: Currently available options are "gaussian" (squared error), "laplace" (absolute loss), "tdist" (t-distribution loss), "bernoulli" (logistic regression for 0-1 outcomes), "huberized" (huberized hinge loss for 0-1 outcomes), "multinomial" (classification when there are more than 2 classes), "adaboost" (the Ad...

Hi, I was wondering if someone can help me interpret the results of running weibreg. I run the following and get the following R output. > weibreg(Surv(time, censor)~covar) fit$fail = 0 Call: weibreg(formula = Surv(time, censor)~covar) Covariate Mean Coef Rel.Risk L-R p Wald p covar 319.880 -0.002 0.998 0.000 log(scale) 0.000 8.239

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 <<insert bug report here>> Reproduced on Debian and Windows ... On 2.4.x if you execute set.seed(12345) t.1 <- rt(n = 1000, df = 20) set.seed(12345) t.2 <- rt(n = 1000, df = 20, ncp = 0) all.equal(t.1, t.2) ## Not close to true This appears to be due to the fact that in 2.4.x rt is now rt function (n, df, ncp = 0) { if

...quot;survrec","svDialogs","svGUI","svIDE","svIO","svMisc","svmpath","svSocket","svViews","svWidgets","SwissAir","systemfit","tapiR","tcltk","tcltk2","tdist","tdthap","TeachingDemos","tensor","tframe","tgp","time","tkrplot","tlnise","tools","tree","treeglia","tripack","truncgof","trust","tseries",&qu...

...ary/base/R-ex/Recall.R action: create D: file: /usr/local/lib/R/library/base/R-ex/Round.R action: create D: file: /usr/local/lib/R/library/base/R-ex/SignRank.R action: create D: file: /usr/local/lib/R/library/base/R-ex/Special.R action: create D: file: /usr/local/lib/R/library/base/R-ex/TDist.R action: create D: file: /usr/local/lib/R/library/base/R-ex/Titanic.R action: create D: file: /usr/local/lib/R/library/base/R-ex/ToothGrowth.R action: create D: file: /usr/local/lib/R/library/base/R-ex/Trig.R action: create D: file: /usr/local/lib/R/library/base/R-ex/Tukey.R action: cr...

...text html latex example Syntax text html latex Sys.info text html latex example Sys.sleep text html latex example Sys.time text html latex example TDist text html latex example Titanic text html latex example ToothGrowth text html latex example Trig text html latex example Tukey...