similar to: simple problems

Hi, I use lm or loess to make smoothing. After smoothing I need "Residual Standard Error" in my script. Could you please tell me how can I get this information? Thanks,

Hi, I tried to do a multiple linear model from the example dataset Formaldehyde. However, the function lm() did not estimate the coefficient of the term carb^2. The same problem occurred with the (nlme)dataset Pixel with both function lme() and lm(). I am using the windows version of R 1.5.1 Lauri Mehtatalo The Formaldehyde example: > data(Formaldehyde) >

I would like to create a method for the generic function "with" applied to a class of fitted models. The method should do two things: 1. Substitute the name of the first argument for '.' throughout the expression 2. Evaluate the modified expression using the data argument to the fitted model as the first element of the search list. The second part is relatively easy. The

Greetings. Is there any way to get R to take a regression model object and draw a plot of the regression function? How about overlaying that plot over a scatterplot of the actual data? Thanks in advance for any help anyone can provide. Aaron ----- Aaron Solomon?? (??ben Saul Joseph??) ??Adelman E-mail??: ??adelmaas at musc.edu Web site??: ??http??://??people.musc.edu??/??~adelmaas??/??

Dear R users, I am just starting with R and am currently needing a lot of help! Sorry if I disturb you and thank you for your answers!!! Here goes my question: How do I make R reconize my date columns as dates? When I "summary" my table, the levels of my date column are completely out of order. Thank you again for this tip, Marcia -- View this message in context:

Dear R users, I have been having a problem since I installed the new versions of TinnR and R on my computer (1.19.4.7 and 2.6.0 respectively). I used to open R by the command "start preferred RGUI", on the "R" tab of TinnR's menu. But now, since I updated both softwares (which was necessary for some compatibility issue with Windows Vista), the path for my preferred RGui (

Hello R users, I have been using R for a while on xp and have just updated my system to vista. Have encountered some problems... First and main problem is that i cannot make R recognize my own written functions by coping them into the Rprofile.site on the etc folder. For some reason, this very useful tool seems not to be working anymore. Could someone help?? Any other suggestion to make R start

Dear R users, I am having a problem with the main title of a plot. I have written a function returning a plot and I would like that the main title of this plot shows actually the name of the dataset I have used. So, for instance: if my dataset is called Chl, I would like that my plot to be entitled : "Raw periodogram of Chl". I know the function "paste". I suppose I would be

I am encountering difficulty with NextMethod in 0.50-a4. We created a class of groupedData objects which are data.frames with additional attributes. The most important attribute is a formula describing roles of some of the variables in the experimental design. The class of such objects ends in "groupedData", "data.frame". The print method for the groupedData class simply

Dear all, I am trying to plot and save the plots. I have written a small function for that in which I use the jpeg and dev.off() commands. Strangely, when these commands are inside the function, they are not working anymore. For instance: dataframe<- data.frame (x=c(1:20),y=seq(0,9.5, length=20)) for (i in seq(0,15, length=4)){ setwd ("C:/R") jpeg(filename =

At present the example data sets in R libraries are to be given as expressions that can be read directly into R. For example, the acid.R file in the main library looks like acid <- data.frame( carb = c(0.1, 0.3, 0.5, 0.6, 0.7, 0.9), optden = c(0.086, 0.269, 0.446, 0.538, 0.626, 0.782), row.names = paste(1:6)) This is great when you have only a few observations. I have one example data

The editor in R version 1.2.0 returns an error after editing a data frame that has row names. This is on a Windows 2000 system, but I've encountered the same problem under Windows 95. Here's a simple example: ------------------------------------------------------------------------------------ R : Copyright 2000, The R Development Core Team Version 1.2.0 (2000-12-15) R is free

On Sun, 31 Dec 2000 jfox@mcmaster.ca wrote: > The editor in R version 1.2.0 returns an error after editing a data frame > that has row names. This is on a Windows 2000 system, but I've encountered > the same problem under Windows 95. Here's a simple example: Actually, that's not where the error is. If you use traceback() you will see it is in edit.data.frame. That tries

Dear R users, I am having a problem performing the mantel test (both with functions mantel {vegan} and mantel.test {ape}) due to I believe the presence of NAs on my distance matrices, which look like e.g.: NA 1 2 1 2 3 NA 4 5 6 and 1 1 2 2 3 4 5 6 7 8 Would any of you have a solution for that? Thank you for much for your help! Marcia Rocha -- View this message in

Hello, I have the following structure: - app - controllers - helpdesk - call_controller.rb (Helpdesk::CallController < ApplicationController) - models - employee.rb - department.rb (Department < ActiveRecord::Base) - helpdesk - call.rb - call_history.rb (Helpdesk::CallHistory < ActiveRecord::Base) Is it possible to have a relationship between

Hi! It''s me again bothering you guys, what I want to do is to give full bandwidth to VPN traffic and limit the rest to 30KB/s (kilobytespersecond), ok? Here''s what I have: tcclasses ################################## eth0 1 1kbps 70kbps 1 eth0 2 1kbps 30kbps 2 default eth1 3 15kbps 10000kbps 1 eth1 4

Hello, I''m getting crazy trying to configure a rails application under IIS in a virtual directory. I have climbed highest mountains, I have run through the fields, I have visited rails forums all over the world and I still haven''t found what I''m looking for :( I know this question has already had been posted here before, but I''m desperate. Does anybody

Dear everybody: We used the fine foreign library to bring in an SPSS dataset that was about 9 megabytes and I can squeeze it into a much smaller R object using compression with save(ndat, file="NatAnnES2000.rda", compress=T). I can use load() to get the "ndat" dataframe back, that's all good as far as I can see. If I put that file in the data subdirectory, then the

Hello R-help I don’t know how to interpret significance from the contr.poly() function . From the example below : how can I tell if data has a significant Linear/quadratic/cubic trend? > contr.poly(4, c(1,2,4,8))               .L         .Q          .C [1,] -0.51287764  0.5296271 -0.45436947 [2,] -0.32637668 -0.1059254  0.79514657 [3,]  0.04662524 -0.7679594 -0.39757328 [4,]  0.79262909 

Should the F statistic be the same when using add1() on models created by lm and glm(family=gaussian)? They are in the single-degree-of-freedom case but not in the multiple-degree-of-freedom case. MASS:addterm shows the same discrepancy. It looks like the deviance (==residual sum of squares) gets divided by the number of degrees of freedom for the term twice in add1.glm. Using anova() on the