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1. Problems with "uniroot" (score: 1): Author: gerald.jean@dgag.ca; Date: Wed, 27 Jul 2005 10:37:23 -0400; I am struggling to find the root of a non-linear monotone function. "uniroot" is complaining about a missing argument? + f.lower = -0.2724897, f.upper = 7.515328, + mu = 7462.83, shape = 0.4475635,; /archives/html/s-news/2005-07/msg00143.html (8,369 bytes)
2. Re: Problems with "uniroot" (score: 1): Author: "Dimitris Rizopoulos" <dimitrios.rizopoulos@student.kuleuven.ac.be>; Date: Wed, 27 Jul 2005 16:45:54 +0200; try it this way: SeuilGamma <- function(x, mu, shape, rate, kk) mu * (pgamma(x, shape + 1, rate) - kk) + x * (1 - pgamma(x, shape, rate)) uniroot(f = SeuilGamma, lower = 440, upper = 450, mu = 7462.8; /archives/html/s-news/2005-07/msg00144.html (11,113 bytes)
3. Re: Problems with "uniroot" (score: 1): Author: "Christos Hatzis" <christos@nuverabio.com>; Date: Wed, 27 Jul 2005 10:49:05 -0400; You need to add keep.xy=T to your function call because your function has extra arguments in addition to x (see help page on uniroot): uniroot(f = SeuilGamma, lower = 440, upper = 450, + f.lower = -0; /archives/html/s-news/2005-07/msg00145.html (10,231 bytes)

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