similar to: Understanding Anova (car) output

Hello, I'm new here, but will try to be as specific and complete as possible. I'm trying to use “lm“ to first estimate parameter values from a set of calibration measurements, and then later to use those estimates to calculate another set of values with “predict.lm”. First I have a calibration dataset of absorbance values measured from standard solutions with known concentration of

Dear R-listers Is there anyone who knows why I get different eigenvectors when I run MatLab and R? I run both programs in Windows Me. Can I make R to produce the same vectors as MatLab? #R Matrix PA9900<-c(11/24 ,10/53 ,0/1 ,0/1 ,29/43 ,1/24 ,27/53 ,0/1 ,0/1 ,13/43 ,14/24 ,178/53 ,146/244 ,17/23 ,15/43 ,2/24 ,4/53 ,0/1 ,2/23 ,2/43 ,4/24 ,58/53 ,26/244 ,0/1 ,5/43) #R-syntax

Hi, I am trying to construct a logistic regression model from my data (104 patients and 25 events). I build a full model consisting of five predictors with the use of penalization by rms package (lrm, pentrace etc) because of events per variable issue. Then, I tried to approximate the full model by step-down technique predicting L from all of the componet variables using ordinary least squares

I performed an aov() analysis and got the following results: Df Sum Sq Mean Sq F value Pr(>F) block 1 0.0040 0.0040 0.3282 0.5672 Residuals 269 3.2766 0.0122 Can anyone tell me how to extract the F value column and Pr(>F) column from the summary output of aov analysis? Many thanks in advance, Liqing Eco. Evol. Biol. UCIrvine

My data frame consists of character variables, factors, and proportions, something like c1 <- c("A", "B", "C", "C") c2 <- factor(c(1, 1, 2, 2), labels = c("Y","N")) x <- c(0.5234, 0.6919, 0.2307, 0.1160) y <- c(0.9251, 0.7616, 0.3624, 0.4462) df <- data.frame(c1, c2, x, y) pct <- function(x) round(100*x, 1) I want to

LLVMers, The 2.1 pre-release (version 1) is available for testing: http://llvm.org/prereleases/2.1/version1/ I'm looking for members of the LLVM community to test the 2.1 release. There are 2 ways you can help: 1) Download llvm-2.1, llvm-test-2.1, and the appropriate llvm-gcc4.0 binary. Run "make check" and the full llvm-test suite (make TEST=nightly report). 2) Download

Dear R users, I have a matrix "final" which looks like this: final oSO4 oNO3 mSO4 mNO3 [1,] 3.3728 0.2110 1.9517421 1.01883602 [2,] 0.8249 0.0697 1.5970292 0.11368781 [3,] 0.2636 0.1004 0.6012445 0.24356332 [4,] 8.0072 0.3443 6.1016998 3.63207149 [5,] 13.5079 0.6593 12.4011068 1.55323386 [6,] 6.1293 0.1989 5.7620926 0.12884845 [7,] 0.6004 0.0661

I tried to bootstrap the correlation between two variables x1 and x2. The resulting distribution has two distinct peaks, how should I interprete it? The original code is attached. Y. C. Tao ---------------- library(boot); my.correl<-function(d, i) cor(d[i,1], d[i,2]) x1<-c(-2.612,-0.7859,-0.5229,-1.246,1.647,1.647,0.1811,-0.07097,0.8711,0.4323,0.1721,2.143,

>> GCC (4.5.2, Windows build from CodeSourcery) - With -O0: 110ms, with -O2: 215ms >> Clang/LLVM (Release mode, LLVM git hash 7f5714f4..., clang git hash >> 9d9cf5...) - With -O0: 110ms, with -O2: 640ms Hi Matt, I only see 2x slowdown on my machine (consistently, O2 and O3), but that's still bad. If you compile to IR then pass "opt -time-passes" you can get a

Dear R-helpers, Happy New Year to all the helpful members of the list. Here is the behavior I'm looking for: > v1 <- c("a","b","c") > n1 <- c(0, 1, 2) > v2 <- c("c", "a", "b") > n2 <- c(0, 1 , 2) > (f1 <- data.frame(v1, n1)) v1 n1 1 a 0 2 b 1 3 c 2 > (f2 <- data.frame(v2, n2))

class ProductsControllerTest < Test::Unit::TestCase fixtures :products end -- Posted via http://www.ruby-forum.com/.

Hi Daniel, That looks good. And cool ajax effects too. Just got my agileruby book and wking my way thru the example. Iam curious -----how long did it take you---from reading the book to the website I have started with chapter 2 but quite impatient to get multiple actions on the same page as you did with list/search and menus etc on the home page I know its supposed to be done using

Hello ... I hope you find someone who speaks Spanish. I am new to linux, I installed Need For Speed Undercover and most wanted, and in both games looks the same, when I enter the game everything is fine except that the key (whether you assign) that makes the car turn left menu does not work, and when in the game is as if oppressed all the time that the car will be left alone. I have Wine 1.3

Hi All. I'd like to change the default plotting colors used to construct a scatterplot with regression line in the CAR package. So, scatterplot(y~pred,smooth=FALSE, xlab="X", ylab="Y", lwd=2) If I change the palette (e.g., palette(ranbow(6)), I can change the color of the lines and points. However, the axes and labels remain in black (i.e., the first color in the

I am using the Unix version of R (version 1.7.0), installed via fink on a G4 Macintosh. I recently upgraded from version 1.6.0 and found that the "car" library now has a problem: ---Begin transcript--- >library(car) Attaching package 'car': The following object(s) are masked from package:base : dfbeta dfbeta.lm dfbetas dfbetas.lm hatvalues hatvalues.lm

hi, i am using this script on our webserver to plot data / draw ellipses for a flex movie... would like to add the areas of the ellipses to another legend just like the means for the distance. the data looks like: x (dispersion), y (distance), Club (name of the club for grouping) thanks, sam ## usage: Rscript nikeScatter.R infile outfile level1 level2 minX maxX minY maxY ## load

Dear all, Sandy Weisberg and I would like to announce version 2.0-0 of the car package, now on CRAN. We've released this major revision of the package in anticipation of the publication of An R Companion to Applied Regression, Second Edition (Sage, in press), co-authored by us, which should be available before the end of the year. The new version of the car package has a number of new

Dear all, Sandy Weisberg and I would like to announce version 2.0-0 of the car package, now on CRAN. We've released this major revision of the package in anticipation of the publication of An R Companion to Applied Regression, Second Edition (Sage, in press), co-authored by us, which should be available before the end of the year. The new version of the car package has a number of new

Hello, We are currently seeking to employ individual?s world wide. How would you like to make money by simply driving your car advertising for YAMAHA. How it works? Here?s the basic premise of the "paid to drive" concept: YAMAHA seeks people -- regular citizens,professional drivers to go about their normal routine as they usually do, only with a big advert for new "YAMAHA YZF-R6

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 List, I googled on this, and despite getting some hits (due more to the terms performance and tuning I think than anything) I was unable to locate useful links for actual software. I'm seeking software that will run on CentOS (or really any linux install period) that will assist me in testing and tuning my vehicle. I'm involved in import