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so i am having this question what should i do if the give data file (.txt) has 4 columns, but different lengths? how can i read them in R? any idea for the following problem? Gas consumption (1000 cubic feet) was measured before and after insulation was put into a house. We are interested in looking at the effect of insulation on gas consumption. The average outside temperature (degrees celcius)

Dear List-members, Hopefully someone will help through my confusion: In order to get the same coefficients as we get from the following ## require (MASS) summary ( lm(Gas ~ Insul/Temp - 1, data = whiteside) ) ...................... we need to do the following (if we use model.matrix to specify the model) ## summary ( lm(Gas ~ model.matrix(~ Insul/Temp - 1) - 1, data = whiteside) )

Hi, How would one go about determining if the slope terms from an analysis of covariance model are different from eachother? Based on the example from MASS: library(MASS) # parallel slope model l.para <- lm(Temp ~ Gas + Insul, data=whiteside) # multiple slope model l.mult <- lm(Temp ~ Insul/Gas -1, data=whiteside) # compare nested models: anova(l.para, l.mult) Analysis of Variance

?What is an Inflector Window Insulator? http://www.youtube.com/watch?v=21DiKS5mt4k Energy Efficiency Done Right presents information on the In'Flector See Through Radiant Barrier Window and Skylight Insulator and the Energy Efficiency Industry. We will examine the growth of the energy efficiency, conservation, energy independence, and carbon emmission industries and explain

...ev] speex_denoise on non-microphone noise (static ?) Take what I say with a grain of salt: I'm an amateur and haven't actually touched Speex in any way, yet. I'm just sort of passing on personal belief from personal experience. Also, check and make sure that the microphone line is insulated. There are a number of problems with sound cards picking up interference from the host machine. The wires that run between ICs on a card essentially act like antennae and furthermore pick up current by inductance. High end sound cards are often on an AC97 riser, or wholly external to the mach...

Take what I say with a grain of salt: I'm an amateur and haven't actually touched Speex in any way, yet. I'm just sort of passing on personal belief from personal experience. Also, check and make sure that the microphone line is insulated. There are a number of problems with sound cards picking up interference from the host machine. The wires that run between ICs on a card essentially act like antennae and furthermore pick up current by inductance. High end sound cards are often on an AC97 riser, or wholly external to the machin...

...ev] speex_denoise on non-microphone noise (static ?) Take what I say with a grain of salt: I'm an amateur and haven't actually touched Speex in any way, yet. I'm just sort of passing on personal belief from personal experience. Also, check and make sure that the microphone line is insulated. There are a number of problems with sound cards picking up interference from the host machine. The wires that run between ICs on a card essentially act like antennae and furthermore pick up current by inductance. High end sound cards are often on an AC97 riser, or wholly external to the mach...

> Ever looked at the underground cable in the street outside your > building? If it's more than 20 years old, it's probably paper-insulated > gel-filled cable, with an _extremely_ thin amount of insulation between > the conductors and _zero_ insulation between the pairs. T1s seem to work > just fine on it, unless it's very old or they try to put more than 6-8 > spans in a single 100-pair bundle :-( 6-8 spans? That'...

Page 140 of MASS uses the function xyplot. But I don't find it in R. Is there a package that I should load to use xyplot. Or there is a function with a different name in R that does the same thing as xyplot in S. xyplot(Gas ~ Temp | Insul, whiteside, panel = function(x, y, ...) { panel.xyplot(x, y, ...) panel.lmline(x, y, ...) }, xlab = "Average external temperature (deg. C)", ylab

Hi All! I need to deploy a bridge firewall using linux kernel 2.6. I had success using kernel 2.4 plus br-nf patch. But the configuration does not work with kernel 2.6. If the default policy for the iptables FORWARD chain is ACCEPT I have a bridge. If iptables FORWARD chain is DROP I have an insulator (no packet flows). Any hint? I did some google search and in many places they say "kernel

Greetings routing folks, I want to use the netmask 255.255.255.255 to insulate (not quite isolate) machines on a shared subnet from each other. This works just fine on win XP, but Linux iproute will not acccept the gateway address in one step -- neither on the command line nor via DHCP: Here''s the interface, set up with a netmask of /32: # ip addr ... 2: eth0:

A pragmatic solution could be to create a simple linear regression example with variables in the global environment and then another example with a data.frame. The latter might be somewhat more complex, e.g., with several regressors and/or mixed categorical and numeric covariates to illustrate how regression and analysis of (co-)variance can be combined. I like to use MASS's whiteside

Hello, I built apache+openssl+mod_ssl. It is working fine, and I have been starting the server with: apachectl startssl Recently, however, I have decided that I will not be doing anything over https (for a while, at least) with this web server, so for security reasons, I want to only run on port 80. So now I start the server with: apachectl start And it runs without SSL. My question is, is

R-helpers; I tried to get a superscripted 3 in the following xyplot example but failed: >data(whiteside) >xyplot(Gas ~ Temp | Insul, whiteside, panel = function(x, y, ...) { panel.xyplot(x, y, ...) panel.lmline(x, y, ...) }, xlab = "Average external temperature (deg. C)", ylab = paste(paste("Gas consumption (1000", expression(ft^3),")"), aspect

Hi , I am struggling with these two question . Any help would be appreciated ,Im looking at doing them on r ? 1. Tests for indications of asbestos in the lungs of employees at an insulation manufacturer resulted in four persons with positive indications of asbestos being sent to a medical center for further testing . if 45% of the employees have positive indications of asbestos in their lungs ,

Dear list, I am currently writing up some of my R models in a more formal sense for a paper, and I am having trouble with the notation. Although this isn't really an 'R' question, it should help me to understand a bit better what I am actually doing when fitting my models! Using the analysis of co-variance example from MASS (fourth edition, p 142), what is the correct notation for the

CentOS 5.3 has been running fairly good except for a slow ethernet connection so I thought I would upgrade to CentOS 5.4 to see if that improved things. I had previously changed fstab and menu.lst to use UUID instead of LABEL in order to insulate myself from partition label changes I wanted to make. This worked fine in CentOS 5.3. When I attempted to upgrade from 5.3 to 5.4 using the

Chris Lattner wrote: > Many aspects of the target compiler can leak through. So if one wants to use the LLVM system as a cross compiler, one has to configure llvm-gcc as a cross compiler? Fair enough, I guess. > One trivial example is: > > int X = sizeof(long); So I assume this also means that while getelementptr insulates llvm byte code from the details of target specific address

Hi everyone, I''ve been sold on the whole idea of using Capistrano for deployment of my sites and have successfully deployed three apps in three different environments all with success. As I''m trying to configure my sites I''ve encountered a number of issues/questions hence this post. 1. Database.yml Twice I''ve been stumped by apps refusing to work on

On Wed, 22 Nov 2006, [ISO-8859-1] Pertti Kellom�ki wrote: > Aside from stuff that depends on system headers, are there any other > dependencies on the host system? In other words, will llvm-gcc produce > exactly the same byte code for a given set of source files regardless of > where compilation takes place? This has obvious implications on Yes. Many aspects of the target compiler