similar to: solving equation

Hi R-users! I'd like to know how to avoid automatic coercion of numeric variables passed to array() to character, when there is one categorical variable between others. I have tried I() function, but it is just functional in data.frame. Best Regards! Eduardo Dutra de Armas

Hi R-users I recently downloaded RdbiPgSQL 1.8.0 and Rdbi 1.8.0 from Bioconductor to be installed under R 2.4.1. When requiring RdbiPgSQL an error message is showed as follows: > require(RdbiPgSQL) Loading required package: RdbiPgSQL Error in library(package, lib.loc = lib.loc, character.only = TRUE, logical = TRUE, : ‘RdbiPgSQL’ is not a valid package – installed <

Dear R helpers I have a daily rainfall dataset of 5 stations, but the time-series are of different lengths. Three stations measured precipitation from 1917 to 2004, one from 1930 to 1979, and other from 1975 to 1998. I'd like to know how to analyse if rainfall is similiar at all stations. Is it possible to compare time-series like these? Best Regards!

Hi R-users I'm working with a data.frame of 40000 x 10, for which I need to apply the "split" function. The result is very long and cannot be stored in a variable due to memory exceeding. I've tried to send the result directly to a file through sink(filename) function, but the problem still occurs. Does anyone have an idea to solve this issue? > dim(dados) [1] 40000 10

Hi R-users Does anybody know if there are functions or packages in R for sphericity tests like Bartlett's or Mauchly's? Thanks! __________________________________________________________ Eng. Agr., M.Sc. Eduardo Dutra de Armas __________________________________________________________ Centro de Energia Nuclear na Agricultura (CENA/USP) Laboratório de Ecotoxicologia Av.Centenário 303,

Hi R-users Does anyone know how to increase the resolution of plots to be exported? I'm exporting some plots but the maximum resolution that I get is 96 dpi. I want to get files with 300dpi. Thanks! __________________________________________________________ Eng. Agr., M.Sc. Eduardo Dutra de Armas __________________________________________________________ Centro de Energia Nuclear na

So many courses in CodeSchool will be free in this weekend, enjoy! http://www.codeschool.com/free-weekend -- Atenciosamente, Guilherme Pereira Dutra, Fone: (34) 8407-0109 -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To

Hi everyone, I?m a graduate student in a Brazilian Intitute of Technology, and I?m doing some academic research regarding secure voice transmission over phone lines. One of our reserach goals is to implement a hardware vocoder, with low bit rates, and a preferably free algorithm, to be used in this secure voice system. Actually, there is a functional system using a proprietary AMBE

I wonder whether R has methods for constrained fitting of linear models. I am trying fm<-lm(y~x+I(x^2), data=dat) which most of the time gives indeed the coefficients of an inverted parabola. I know in advance that it has to be an inverted parabola with the maximum constrained to positive (or zero) values of x. The help pages for lm do not contain any info on constrained fitting. Does anyone

Hi, I'm trying to get a toy program making use of nmmin to run successfully. I've gotten to the point of compiling. However, when I attempt to run my executable, I guess a bus error. I see that someone else has asked about using nmmin before <http://tolstoy.newcastle.edu.au/R/help/06/03/23944.html>, but I haven't come across any replies. Is there some documentation on how to

I'm maximising a reasonably complex function using nlme (version 3.1-65, have also tried 3.1-66) and am having trouble with fixed parameter estimates slightly away from the maximum of the log likelihood. I have profiled the log likelihood and it is a parabola but with sum dips. Interestingly changing the parameterisation moves the dips around slightly. Unfortunately the PNLS step is

Hello, I am writing a RoR application that connects to a couchDB database using couchrest_model. The definition of my model is the following one: class BdsDataAuthor < CouchRest::Model::Base property :id, Integer property :first_name, String property :last_name, String end I would like to be able to get the list of the model columns, e.g., the result of BdsDataAuthor.columns would be

Hello, Every queue has some status counters (completed, abandoned, hold time...) that are very useful for statistics. The problem is that those counters are reset every time Asterisk restarts. Is there a way to keep those counters, maybe in astdb? Also, is there a way to reset the counters through a cli command? Thanks. -- MARLON DUTRA Propus GnuPG ID: 0x3E2060AC pgp.mit.edu

Dear Members of the Help List, Honestly, I feel a little bit stupid - I would like to do something rather simple: fit a non linear model to existing data, to be more precise I wanted to start with simple higher order polynomials. Unfortunately, I do not quite understand the examples in the helpfiles for the nlm, nls and nlsModel commands. Could anyone please provide a simple example to get me

Hi guys, I've been experiencing a very strange issue with my Digium Card TDM400 as of this week. It has two FXS and two FXO. The FXO modules (both of them) never goes on-hook after hanging up in Asterisk. It had worked perfectly well for over four years. I put an ammeter in series with the line and the card, and immediately after plugging the connector to the card, I got 26mA in the circuit

Hello, I''ve just compiled the kernel 2.6.17 and noticed an odd HTB behaviour. For instance: tc class add dev eth0 parent 1:1 classid 1:30 htb rate 1kbit ceil 750Kbit burst 15k tc filter add dev eth0 parent 1:0 protocol ip prio 15 u32 match ip dst 192.168.5.1 classid 1:30 The filter works ok and the traffic to 192.168.5.1 flows through the class 1:30, but the rate gets much higher than

I have a problem restricting the access of a particular workstation to a single user. Is there a way of doing this? I couldn't find it anywhere, although it is trivial to do it the other way around... much appreciated! Thanks

I am trying to use the R API to call optim functions (nmmin, vmmin, lbfgsb, etc.) through a C program but I couldn't find the shared library to link under the R-2.6.0 build which is compiled under Linux (REL5). main.cpp:35: undefined reference to `Rf_initEmbeddedR(int, char**)' main.cpp:41: undefined reference to `nmmin' Thanks in advance for any help. ------------------------

Hi fellows, Could anyone tell me what --with-winbind-ldap-hack exactly does? I couldn't understand reading instructions on the source code. I'm having a big problem, which I described in another e-mail, with subject "Domain controller - LDAP". If anyone can help me, I'd be pleased. Thanks at once. -- MARLON DUTRA Debian-RS http://people.debian-rs.org/~marlon/ ICQ:

Hello, I gather data from 5 objects and 5 data. frames and would like to join information. join: pb_SM + pb_T + pb_P + pb_F + pb_SJ = total_pb join: sdmdata_SM + sdmdata_T + sdmdata_P + sdmdata_F + sdmdata_SJ =total_sdmdata code: rbind, merge? total_pb<- ?? total_sdmdata<- ?? 1 absvals_SM <- extract(grid_present_SM, absences_10000) presvals_SM <-