[R] weighted nonlinear regression

for this function. Best regards, Antonio Olinto Sao Paulo Fisheries Institute Brazil www.pesca.sp.gov.br - WebMail Bignet - O seu provedor do litoral www.bignet.com.br __ R-help@stat.math.ethz.ch mailing

[R] proxy settings

under both Windows XP and Linux Ubuntu. Thanks for any help. Antonio Olinto - BCMG Internet Webmail www.bcmg.com.br __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEAS

[R] Installing R on Ubuntu 6.10 via apt-get

let seems to be OK. Am I doing something wrong or there's really a problem with the Release file? Many thanks! Antonio Olinto __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the postin

[R] finding x values to meet a y

Hi, I'd like to find which values of x will give me a y. In other words, in the example of a gaussian curve, I want to find the values of x that will give me a density, let's say, of 0.02. curve(((1/(sqrt(2*pi)*10))*exp(-((x-50)^2)/(2*10^2))),xlim=c(0,100)) Thanks for any help, Anto

[R] prob in sample function

I could see I cannot use this P as prob in sample function. I'd need the probabilities as given by dnorm function, isn't it? Well, how can I “translate” the P given in the logistic function? Thanks for any help. Best regards. Antonio Olinto Sao Pa

[R] filtering in aggregate

A" & F=="trawl"]), fun=sum), but it didn't worked. To overcome this problem I did a subset as a new data frame and then I used aggregate. But I'm sure there's a way to apply a filter in data frame. Thanks for any help. Best regards. Antonio Olinto ___

Re: [R] model selection with step function

var2. Is it possible to do so? Thanks again. Antonio Olinto Biologist Sao Paulo Fisheries Institute PS. Unfortunately I don’t have Regression Modeling Strategies around here Citando P Ehlers <[EMAIL PROTECTED]>: > > Antonio Olinto wrote: > > > Hello, > > > >

[R] model selection with step function

Hello, I have a doubt in using the function step (step wise) to select glm models. Usually I apply the gamma distribution to analyze fishery data. To select the terms I use a routine where I first compare single term models to the null model (eg. U~1 vs. U~depth; U~1 vs. U~latitude; etc. – where

[R] cluster analysis question

couldn’t get the result I want. Thanks for any help, Antonio Olinto - WebMail Bignet - O seu provedor do litoral www.bignet.com.br __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

[R] barplot usage

Hi, I’m trying to make a barplot with the following dataframe, with information on relative frequency per sediment type (ST) for some species: Species ST1 ST2 ST3 SP_A 10 6030 ... At x-axis are (should be ...) the species names and at y-axis the frequency per sediment, in stacked b

[R] RE: using subset

t; that you want. I am pretty sure subset has worked properly in your case. > > Try > > > data[1:20,] > > And just look at your data to see. > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Antonio Olinto > Sen

[R] using subset

ers species names still apearing. Also I tried data2<-data1(data1$species %in% c("sp1","sp2")),] But I got the same result. How can I get a “clean” subset? Thanks for any help. Best regards. Antonio Olinto - WebMail Bignet

[R] p-value for nonparamentric multiple comparison testing

.15, App106 (Critical values of Q for Nonparamentric Multiple Comparison Testing). Is there any function in R that returns this value? Thanks in advance. Antonio Olinto == multcomp <- function(VarCat,VarNum) { dat.multcomp <- data.frame(VarCat,VarNum) names(dat.multcomp) <-

[R] probability scale at y axis

Hi, I'd like to make a plot with a probability scale at y axis, just like in the old probability paper. I couldn't find how make it in R. Thanks for any hint. Best regards, Antonio Olinto - WebMail Bignet - O seu provedor

[R] using ylab=expression()

roper sintaxe? Thanks for any help. Sincerely, Antonio Olinto - WebMail Bignet - O seu provedor do litoral www.bignet.com.br __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-he

[R] cross table

ready tryed many commands, without success - unfortunately. May someone help me? Thanks in advance! Antonio Olinto - WebMail Bignet - O seu provedor do litoral www.bignet.com.br __ [EMAIL PROTECTED] mailing

[R] greek letters in plots

Hi, I want to write in x axis label "fitted value of lambda" (lambda in greek letter). xlab=expression(lambda) gives the "lambda", I tryed things like xlab=paste ("fitted value of ", expression(lambda)) but I didn't get the greek letter. Thanks in ad