[R] the largest independent (stable) set on graphs

2012-06-12 Thread Diogo Alagador
this? Thanks in advance, Diogo Alagador Biodiversity Chair, Univ Évora, Portugal __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide

[R] independent set function from graph package

2012-04-08 Thread Diogo Alagador
Dear all, I have been using the graph package until last week, especially the functions independence.number and largest.independent.vertex.sets. This weekend I formatted my hard disk and when trying to install packages I noticied that graph package is no longer on R repository although can

[R] solnp Hessian problem in some datasets not in others

2012-03-02 Thread Diogo Alagador
Dear all, Sorry to insist in this, but I am passing really bad times trying to solve the problem. Just to remember you: I am tryng to solve a nonlinear optimization probel using the solnp function. I have different datasets. For the smaller I get full solutions, for the bigger I got an error

[R] solnp inconsistent error messages

2012-02-27 Thread Diogo Alagador
Dear all, I am tryng to solve a nonlinear optimization probel using the solnp function. I have different datasets. For the smaller I get full solutions, for the bigger I got an error message stating: Iter: 1 fn: 101.8017 Pars: 0.21000 0.21000

[R] solnp inversed-Hessian problem

2012-02-23 Thread Diogo Alagador
Dear all, I am tryng to solve a nonlinear optimization probel using the solnp function. I have different datasets. For the smaller I get full solutions, for the bigger I got an error message stating: Iter: 1 fn: 101.8017 Pars: 0.21000 0.21000

[R] Rsolnp package: warning messages

2011-12-12 Thread Diogo Alagador
Dear, I am using the solnp command (package Rsolnp) for a problem with equality and inequality constraints. I am not getting convergence for my problem but apart that I get 1 warning per iteration saying: ?In cbind(temp, funv) : number of rows of result is not a multiple of vector length

[R] wilcox test on two data frames

2007-11-06 Thread Diogo Alagador
Hi all, Basically I have 2 data frames with equal dimension and I want to apply the wilcox.test to compare columns in the same position (i.e. 1st of df.A with 1st of df.B, 2nd of df.A with 2nd of df.B,...). Anyone give me an hint on this, as I think it is nicer to avoid loops, specially for

Re: [R] median value dataframe coming from multiple dataframes

2007-10-23 Thread Diogo Alagador
Obrigadão Henrique It is just doing fine with big datasets... See you, Diogo André Alagador Portugal From: Henrique Dallazuanna [mailto:[EMAIL PROTECTED] Sent: Mon 22-10-2007 22:48 To: Diogo Alagador Cc: r-help@r-project.org Subject: Re: [R] median value

[R] median value dataframe coming from multiple dataframes

2007-10-22 Thread Diogo Alagador
Hi all, I am not a skillful R programmer and has I am handling with large dataframes (about 3 x 300) I am in need of an efficient function. I have 4 dataframes with the same dimension. I need to generate other dataframe with the some dimension than the others where in each position it

Re: [R] median value dataframe coming from multiple dataframes

2007-10-22 Thread Diogo Alagador
Dallazuanna [mailto:[EMAIL PROTECTED] Sent: segunda-feira, 22 de Outubro de 2007 21:03 for: Diogo Alagador Cc: r-help@r-project.org Re: [R] median value dataframe coming from multiple dataframes Hi Diogo, teste - function(x){ if(!is.list(x))stop(A list is needed) df_out - matrix