similar to: nls confidence intervals

Hi, I have matrix of sea bottom depths that I am plotting in R with the function 'image'. I am particularly interested in the 200m depth contour (I'm using 'distance from this feature' as a covariate in a model) and would like to extract the data at evenly spaced points along it. I can easily superimpose a line at 200m using the function 'contour'. What I want to

Dear R users, I have a question on using weighted.mean() while aggregating a data frame. I have a data frame with columns Sub, Length and Slope: > x[1:5,] Sub Length Slope 1 2 351.547 0.0025284969 2 2 343.738 0.0025859390 3 1 696.659 0.0015948968 4 2 5442.338 0.0026132544 5 1 209.483 0.0005304225 and I would like to calculate the weighted.mean of Slope, using Length

How can I see more of the structure than displayed by 'str'? Consider the following: tstDF <- data.frame(a=1, row.names='b') > str(tstDF) 'data.frame': 1 obs. of 1 variable: $ a: num 1 The object 'tstDF' has row.names, but I have to suspect they are there -- AND know a function like 'row.names' or 'dimnames' -- to see

How can I extract K (number of parameters) from an AIC calculation, both to report K itself and to calculate AICc? I'm aware of the conversion from AIC -> AICc, where AICc = AIC + 2K(K+1)/(n-K-1), but not sure of how K is calculated or how to extract that value from either an AIC or logLik calculation. This is probably more of a basic statistics question than an R question, but I thank

What are the functions available for use with “aggregate”? Where can a reference to them be found? --------------------------------- [[alternative HTML version deleted]]

I am encountering an error with plot.lm: > tstdf <- data.frame( y=c(1.01,1.98,3.02,3.99),x=c(1,2,3,4)) > plot(lm(I(y) ~ x, data=tstdf)) Hit <Return> to see next plot: Hit <Return> to see next plot: Error in object$coefficients : $ operator is invalid for atomic vectors Obviously I don't need the I() in this example, but I have been working with regressions that involve

Hi, To obtain estimates for some missing values in my data I fitted a linear regression and then used the command fitted(model) to get the fitted values from the model, but R doesn't return any values for the NA's. I can calculate the fitted values from the estimates obtained from the summary of model, but that's not very handy. Is there a way to include the missing values in the

Hi All I have been fitting regression models and would now like to produce some contour & image plots from the predictors. Is there an easy way to do this? My current (newbie) experience with R would suggest there is but that it's not always easy to find it! f3 <- lm( fc ~ poly( speed, 2 ) + poly( torque, 2 ) + poly( sonl, 2 ) + poly( p_rail, 2 ) + poly( pil_sep, 2 ) + poly( maf, 2

Hi, I'm having trouble installing R. I'm sure this is a very simple problem but I'm stuck. When running the ./configure script, to install R (version 1.6) on Solaris 2.6, I get an error message at the end of the configuration process "WARNING: f77 and cc disagree on int and double. configure: error: maybe change CFLAGS or FFLAGS?" However, I have seen no documentation on

Hi, I've got the R library "mgcv" for GAM written by Simon Wood which works well in many instances. However, over the years I got attached to the S+ implementation of GAM which allows loess smoothing in more than 1 dimension as well as spline smoothing. Has anyone ported the S+ GAM library to R? Regards, Doug Beare. Fisheries Research Services, Marine Laboratory, Victoria Road,

Hello, I would like to ask a question which is not related to wine, but i think that wine developpers could answer it, or maybe help me a bit. I am working on the linux port of a win32 program. This one uses two functions about win32 threads: GetCurrentThread GetThreadTimes I have found in nt2unix an implementation of the first one. But not for the latter. I have seen that 2 years ago,

Dear list, To make it easier, let me start with an example. Say I have 20 different cookies. Dave likes 7 of them, Evan likes 14 of them and Torri likes 11 of them. The data is cookies<-cbind(c(1:20), c(1,0,0,1,0,1,0,0,0,0,1,1,1,0,0,0,1,0,0,0), c(1,1,1,0,0,1,1,1,1,1,0,1,1,0,1,0,1,0,1,1), c(1,1,0,1,0,0,1,0,1,1,0,0,1,0,1,0,1,1,1,0))

I installed WPO2000 on RedHat 7.2 - it worked fine for a while. I used the updated install scripts and Mr. Torrie's CorelWine rpm. It has been working fine for a couple of weeks (and continues to do so on another machine). Now when I start the WP application, I get a window that says "Wine initializing...", then it goes away (a little too quickly, I think), and then...

Hi. I need to setup a single Samba server with multiple domains. I did more than one setup with single domain, but I'm having troubles finding info about multiple domain, especially with LDAP. Can anyone point me to a link, possibly with examples, on how to configure such a setup? many thanks -- Lorenzo Milesi - lorenzo.milesi at yetopen.it YetOpen S.r.l. - http://www.yetopen.it/ Via Carlo

Dear all, I'm using R to perform multiple comparison testing on agriculture genotype trials. To perform the Duncan's MRT, I use the qtukey() function with the following syntax: qtukey(p = ((1 - 0.05) ^ (pos - 1)), nmeans = pos, df = ni) I experience a strange behaviour when the number of means in the trial and the number of residual degrees of freedom (ni) becomes high

Moved from r-help: On Thu, 14 Aug 2003 09:08:26 -0700, Spencer Graves <spencer.graves@pdf.com> wrote : >p.s. The following command in S-Plus 6.1 seems to work fine but >produces an error in R 1.7.1: > >nls(y~a, data=tstDf, start=list(a=1)) >Error in nlsModel(formula, mf, start) : singular gradient matrix at >initial parameter estimates This looks like a bug in

I'm sure this is a very simple problem but I'm stuck. When running the ./configure script, to install R (version 1.6) on Solaris 2.6, I get an error message at the end of the configuration process "WARNING: f77 and cc disagree on int and double. configure: error: maybe change CFLAGS or FFLAGS?" However, I have seen no documentation on these flags' options, syntax, and how

The printing howto is a little vague in this area. How do I go about printing through ghostscript from windows? I know how to teach ghostscript to print the ttfs (generate the appropriate afms, add them to the fontmap). Where do I place the afms for wine to use? If I provide afms for each truetype font for wine, and then use a postscript printer ppd file, and set lpt1 to be |lpr, will this

Hi. I've configured a Samba PDC controller on which I've configured a couple of printers using Cups. I've set up the relevant config according to the documentation, so: load printers = Yes printing = cups printcap name = cups [print$] comment = Printer Drivers path = /dati/samba/drivers browseable = yes guest ok = no read only = yes

I've compiled samba with the --with-ldapsam option and have setup up an ldap server. When I try to change the password of a user, say Administrator, get the following stuff with full debugging turned on (-D 255): New SMB password: Retype new SMB password: ldap_open_connection: connection opened ldap_connect_system: succesful connection to the LDAP server ldap_search_one_user: searching