search for: pescas

Hi All, I have a time series called 'upwelling', like this: >upwell Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 1984 494.7 303.7 220.8 288.4 188.1 125.5 215.7 1985 56.0 127.4 165.8 189.4 261.6 223.7 186.3 150.2 107.8 120.3 91.1 from 1984 until 2000. How do I could extract, i.e, Jan or Dec columns from the data? Or how do I

Hello, I'm creating a loop to work with vegan, to get a species abundance curve. Here I send the script I've created and also an excel file to prove what it can do. Well, I have a database with 20 years, and each year we have sampled 19 stratum, and in each estratum we have carry out some sumpling. Then, with the script that I've sent I've got to calculate the species abundance

Hi, Is there anybody who could explain a little bit the use of s.window and t.window in STL. If I decompose a series using the default values, I get a very irregular trends, but if I play with the options, I get less rare trends. If anybody can explain me the concepts behind these options I will appreciate a lot. I'm not a mathematician ;-) Thanks in advance Cheers, Antonio Antonio

Hi I'm writing my MSC and I've used R to do the data analysis. Now I want to make a reference to the program but I don't know how ! I thought of something like: Anonymous. 2001. R - Data Analysis Environment. Version 1.2.3. www.r-project.org Can someone help me with this ? Thanks EJ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing

...I'd like to transform this list into a single dataframe. I need to mimic an rbind of all dataframes ... Transform doesn't seem to work :-( Thanks EJ -- Ernesto Jardim <ernesto at ipimar.pt> Bi?logo Marinho/Marine Biologist IPIMAR - Instituto Nacional de Investiga??o Agr?ria e das Pescas IPIMAR - National Research Institute for Agriculture and Fisheries Av. Brasilia, 1400-006 Lisboa, Portugal Tel: +351 213 027 000 Fax: +351 213 015 948 http://ernesto.freezope.org

...k uglier (or pretier) ... Hope you enjoy it and, as usual, all comments are welcome. Best regards EJ ps: please can somenone change the file in R-GUI page ? -- Ernesto Jardim <ernesto at ipimar.pt> Bi?logo Marinho/Marine Biologist IPIMAR - Instituto Nacional de Investiga??o Agr?ria e das Pescas IPIMAR - National Research Institute for Agriculture and Fisheries Av. Brasilia, 1400-006 Lisboa, Portugal Tel: +351 213 027 000 Fax: +351 213 015 948 http://ernesto.freezope.org

..."assign"), qr = qrx, smooth = fit$s, nl.df = fit$df - 1, ) Any ideias? Thank you very much in advance, Marta PS: happy new year :-) -- ....................................................................... Marta M. Rufino (PhD) ..... Instituto Nacional de Investiga??o Agr?ria e das Pescas (INIAP/IPIMAR), Centro Regional de Investiga??o Pesqueira do Sul (CRIPSul) Avenida 5 de Outubro s/n P-8700-305 Olh?o, Portugal +351 289 700 541 ..... Institut de Ci?ncies del Mar - CMIMA (CSIC) Passeig Mar?tim de la Barceloneta, 37-49 08003 BARCELONA - Catalunya Spain

Dear All, Could anyone?give me a hand?to suggest few packages in R to running Kalman prediction and filtration ? Thanks Fir

Hello, This is my first post to this list. Well, I tried to install Google Earth using WineTools but I got the "Unknown Graphics Card" error. I can open the program but Earth doesn't appear. I'm running Debian Sarge on a ASUS CUW(E)-FX motherboard (Intel 810 Chipset) and Gnome 2.10.2 inteface. Thanks for any help. Best regards, Antonio -- Ant?nio Olinto Biologist /

Hi, Is it possible to place the group number in a cluster? The best example I found was at https://www.crops.org/images/publications/cs/42/5/1584f4.jpeg (see I, II, IIIa, IIIb) It would help to identify the group given by cutree since branches can turn around and they necessarily are not plotted in order (group 2 is not necessarily the second from the left). Thanks for any help. All the

Dear list members I have a doubt on how p-values for t-statistics are calculated in the summary of Linear Models. Here goes an example: x <- rnorm(100,50,10) y <- rnorm(100,0,5) fit1<-lm(y~x) summary(fit1) summary(fit1)$coef[2] # b summary(fit1)$coef[4] # Std. Error summary(fit1)$coef[6] # t-statistic summary(fit1)$coef[8] # Pr(>|t| summary(fit1)$df [2] # degrees of freedom #

This works fine: fit42<-nls(Vfs~SSlogis(Months,Asym.Int+Asym.Group*Groupdum,xmid,scal), data=df, start=c(Asym.Int=22,Asym.Group=5,xmid=2,scal=6), na.action=na.omit) But this, identical except using gnls, doesn't converge: fit43<-gnls(Vfs~SSlogis(Months,Asym.Int+Asym.Group*Groupdum,xmid,scal), data=df, start=c(Asym.Int=22,Asym.Group=5,xmid=2,scal=6), na.action=na.omit) Error in gnls(Vfs

Dear all, I am trying to generate bootstrap replicate matrixes (rows=samples, column=species, sampling with replacement) from a matrix dataset, but I do not know how to do it in R. I have tried boot() and bootstrap(), but they require an statistic, which in my case is cluster analysis (generating bootstrap values for a cluster analysis is a topic that has been mentioned previously in

Estimado Matías Epidemiología, no es un paquete, me refería a la parte de medicina, que por suerte en R hay herramientas que nos facilitan algunas de estas cuestiones. En http://cran.r-project.org/doc/contrib/Epicalc_Book.pdf hay un libro gratuito de R y epidemiología, aunque hay otros paquetes que tienen algunas cosas que pueden ser mejores, aunque muchas veces eso es a gusto personal o de

Hi all, After running kruskal.test I have got results (p<0,005) pointing to reject the hypothesis that the samples were draw from the same population. Howerver when I run the kruskalmc there are no significant differences in any of the multiple comparisons. Is that possible? Some clarification? Thanks, Humber <https://sites.google.com/site/humberandrade> [[alternative HTML version

Estimado Javier, Gracias por tus comentarios. Si, puede ser que me haya expresado en forma incorrecta. Mi idea fue tratar de ser lo mas conciso posible y limitarme al problema estadistico que tengo, por lo cual obvie mucha informacion. La data proviene de un monitoreo que se hace en el Mar Baltico anulamente hace mas de 20 años, debido a que la poblacion a decendido drasticamente en los