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...reek 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 advance for any hint. Antonio Olinto ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

...er 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, Antonio Olinto ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

...th. I don??t have all classes per month. | 1 2 3 ... ------------- 120 | 0 1 0 150 | 5 6 0 170 | 3 0 7 ... I have already 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

...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 - O seu provedor do litoral www.bignet.com.br

...ample? Thanks for any help. I read Chambers and Hastie?s ?Statistical Models in S?, Venables and Ripley ?Modern Applied Statistics? and, of course, R help but I couldn?t get the trick. Antonio -- Biologist Sao Paulo Fisheries Institute ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

...SE Q 1 3 vs 1 13.8393 4.6923 2.9493 2 3 vs 2 4.1518 4.6923 0.8848 3 3 vs 4 0.2768 4.6923 0.0590 4 4 vs 1 13.5625 4.5332 2.9918 5 4 vs 2 3.8750 4.5332 0.8548 6 2 vs 1 9.6875 4.5332 2.1370 ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

...plot with all the points (1 to 10) in blue (or any other color), the points 5 to 9 in red and a regression line from points 5 to 9. Best regards, Antonio Olinto ----- Original Message ----- From: "Rashid Nassar" <rnassar at duke.edu> To: "Antonio Olinto" <aolinto at bignet.com.br> Sent: Sunday, September 23, 2001 2:20 PM Subject: Re: [R] plot and lm > One way to do this (if I understand you correctly): > > > qu > x y > 1 1 1.0 > 2 2 2.0 > 3 3 3.0 > 4 4 4.0 > 5 5 4.4 > 6 6 4.1 > 7 7 3.2 > 8 8 3.1 > 9...

...9 5 2 0.72 10 1 2 0.80 11 4 3 0.63 12 2 3 0.85 13 3 3 0.93 14 5 3 0.97 15 1 3 1.05 16 4 4 0.95 17 3 4 1.11 18 2 4 1.15 19 5 4 1.15 20 1 4 1.28 21 4 5 1.13 22 3 5 1.29 23 5 5 1.32 24 2 5 1.35 25 1 5 1.49 ----------------------------------------------------- E-Mail enviado por WebMail - http://www.bignet.com.br -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request...

...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 / Oceanographer Sao Paulo Fisheries Institute Brazil aolinto_linux@bignet.com.br www.pesca.sp.gov.br ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

...x-min) and an horizontal line or point indicating the mean) with data like: Year Avg Min Max 98 10 7 13 99 12 10 15 01 11 6 14 Which command should be used? Many thanks, Antonio Olinto ----------------------------------------------------- E-Mail enviado por WebMail - http://www.bignet.com.br -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request...

Dear R-list members, Some months ago I wrote a message on the usage of gnls (nlme library) and here I come again. Let me give an example: I have a 10 year length-at-age data set of 10 fishes (see growth.dat at the end of this message) and I want to fit a von Bertalanffy growth model, Li= Linf*(1-exp(-k*(ti-t0))) where Li = length at age i, Linf= asymptotic length, k= curvature parameter, ti=

...le 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 Paulo Fisheries Institute Brazil ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

...0 60 30 ... At x-axis are (should be ...) the species names and at y-axis the frequency per sediment, in stacked bars. I tried to use barplot command but with no results. Could anyone help me on this? Thanks in advance, Samantha ------------------------------------------------- WebMail Bignet - O seu provedor do litoral www.bignet.com.br

Dear R-List members, I want to check if a set of measurements follows better a gamma or a lognormal distribution (see data below). Using shapiro.test I can test for normality (shapiro.test(log (Lt)). To test for gamma (and normal) distribution I would use ks.test but I need to specify its shape and scale. How should I calculate these values in R? I tried > Lt.fit <- glm(Lt ~ 1,

Dear list fellows, I want to study time series and use R to analyse time series of fishing data from several species (landings and cpue) investigating the correlation between them and with environmental factors (water temperature, wind, etc.). Searching at Amazon I found three books with examples in R: Time Series Analysis: With Applications in R by Jonathan D. Cryer and Jonathan D. Cryer

...Olinto" To: "R-help" <r-help at stat.math.ethz.ch> <aolinto at bignet cc: (bcc: Andrzej P. Jaworski/US-Corporate/3M/US) .com.br> Subject: [R] coefficient of determination on a nls regression...

...t.lm)$coefficients[,1:2] to get the coefficients and their SEs. For nls, it takes a bit more digging, as the documentation is a bit sparse. Something like: summary(nlsfit)$parameters[,1:2] will give what you want. Cheers, Andy -----Original Message----- From: Antonio Olinto [mailto:aolinto at bignet.com.br] Sent: Wednesday, October 30, 2002 11:05 AM To: R-Help Subject: [R] extracting Std. Error value from lm/nls Hi, How to extract Std. Error values from a lm or a nls? With coef(model), coef(model)[1], coef(model)[2] and df.residual(model) I can get the coeffcients and the degrees of freed...

Hello all, I have a data frame with year, month, species, fishing gear and catch (Y, M, S, F, C) and I want the sum of C by Y for species "A" and fishing gear "trawl". I tried things like aggregate(C[S=="A" & F=="trawl"], list (Year = Y[S=="A" & F=="trawl"]), fun=sum), but it didn't worked. To overcome this problem I did

Hello, I want to know how do R calculates the number of intervals between tick-marks in the y axis in a plot. I'm making a three y-axes plot and this information would help me a lot. Thanks in advance. Antonio Olinto ---------------------------------------------------------------- Webmail - iBCMG Internet http://www.ibcmg.com.br

Hello, About looping, consider the example: for (i in 1:23194) { dat.stat[i,c(2:8)]<-quantile(dat.bat[BL==block[i],2],prob=c(0,0.025,0.25,0.5,0.75,0.975,1)) print(i) } I'd like to have the value of "i" printed for each loop (step). As I could see the values of "i" are shown on screen only after all the work is done. Thanks in advance for any suggestion. Best