search for: stepped

Dear R-helpers, I'm not a speciallist in writing complex functions, and the function still very rusty (any kind of suggestions are very welcome). I want to implement Gale-Shapley algorithm for R Language. It is based on http://www.jstor.org/stable/10.2307/2312726 Gale and Shapley (1962) , and it has evolved to

This patch introduces an optimized assembler version of md5_process(), the inner loop of MD5 checksumming. It affects the performance of all MD5 operations in rsync - including block matching and whole-file checksums. Performance gain is 5-10% depending on the specific CPU. Originally created by Marc Bevand and placed in the public domain, later integrated into OpenSSL. This is the original

Hi everyone, I''m currently finishing the planning phase of a small project I want to create. I read a bunch of tutorials about ActiveRecord and the different way to link your "tables" with belongs_to, has_many, has_and_belong_..., etc... However I''m stillnot sure if what I''m trying to do will work *well* with ActiveRecord. So enough talk,

..._Pro_L7700?ip=192.168.1.253' server1.wendellfreelibrary.org% scanimage -T scanimage: scanning image of size 638x1125 pixels at 24 bits/pixel scanimage: acquiring RGB frame, 8 bits/sample scanimage: reading one scanline, 1914 bytes... PASS scanimage: reading one byte... PASS scanimage: stepped read, 2 bytes... PASS scanimage: stepped read, 4 bytes... PASS scanimage: stepped read, 8 bytes... PASS scanimage: stepped read, 16 bytes... PASS scanimage: stepped read, 32 bytes... PASS scanimage: stepped read, 64 bytes... PASS scanimage: stepped read, 128 bytes... PASS sca...

Hey gang, I find myself struggling with multiple step definitions in cucumber all the time. I regularly test the contents of my flash[:notice] in steps, since I think that''s part of the behaviour of the app. So, while implementing a new feature, I ran into the following error: /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.15/bin/../lib/cucumber/ step_mother.rb:81:in

Hello all, I'm stuck with a strange issue with writing jpegs of plots to a folder in a loop. This works: for (step in 1:length(steps)) { jpeg(filename=paste("frame_",sprintf("%05d",step),".jpg",sep="")) plot(steps[[step]]) dev.off() } But if I use qplot to generate the plot (which is my aim): for (step in 1:length(steps)) {

Dear List Members, I have encountered two problems when using the step function to select models. To better illustrate the problems, attached is an R image which includes the objects needed to run the code attached. lm.data.frame have factor variables with 3 levels. The following run shows the first problem. AICs (* and **) are different. I noticed that the Df for rs13482096:rs13483699 is 4,

Dear R users, I recently stumbled upon problems of reproducibility while running GAM analyses in different R and gam package versions. In the example below, a small dataset is created in which the y and x1 variables are 100% correlated. The intents of this example were primarily for regression testing and, secondarily, to evaluate how the gam algorithm behaves under extreme/limit conditions. I

Hi all, Could you please help me? I am having the following weird problem when debugging R programs using "browser()": In my function, I've inserted a "browser()" in front of Step 1. My function has 3 steps and at the end of each step, it will print out the message "Step i is done"... However, after I hit <ENTER> when the program stopped before Step 1

Full_Name: Jerome Asselin Version: 1.3.1 OS: MacOS 9.2 Submission from: (NULL) (142.103.173.46) The step() function attempts to calculate the deviance of fitted models even if does not really need it. As a consequence, the step() function gives an error when it is used with coxph(). (There is currently no method to calculate the deviance of coxph() fits.) The code below gives an example of how

I'm trying to get the following section of code to work, I think the problem is being caused by the assignment of data to the lm function not evaluating to "train" in the parent environment but I can't seem to figure out how to do this. fitmodel <- function(trial,data) { wrap.lm <- function(formula,data,...) { cat("in wrap lm",NROW(data),"\n");

Hi, I have been trying to get the sub function to work but can't for the life of me figure it out. I tried looking at ?sub but I think there is something that I am just not understanding. Example failed attempts > sub("\\","/","G:\Compensation Audits_Reports\Step Audit\Steps off Step.accdb") Error: '\C' is an unrecognized escape in character string

Hi, How can I have a common set of steps that all my stories share? i.e. My stories often start out looking like this: Given a user Joe Given a user Jordan then: Given("a user $username") do |username| @users ||= {} @user_sessions ||= {} @users[username] = create_user(:username => username) @user_sessions[username] = login_as(@users[username]) end I want to share that

Hi R users I am trying to run a non linear parameter optimization using the function optim() and I have problems regarding memory allocation. My data are in a dataframe with 9 columns. There are 656100 rows. >head(org_results) comb.id p H1 H2 Range Rep no.steps dist aver.hab.amount 1 1 0.1 0 0 1 100 0 0.2528321

Dear List Members, I have encountered two problems when using the step function to select models. To better illustrate the problems, an R image (step.add1.test.RData) which includes the objects needed to run the code (step.add1.test.R) can be found at www.biostat.wisc.edu/~pwang/r-help/<http://www.biostat.wisc.edu/%7Epwang/r-help/> lm.data.frame have factor variables with 3 levels. The

Dear All, I need CentOS 4.4 and RHEL4 Update 3 Step-by-Step Text Mode Installation Screen Shots. Please send me the following Installation Screen Shots Details or link Regards -S.Balaji

Hi, I'm working with step.gam in gam package. I'm interested both in spline and lowess functions and when I define all the models that I'm interested in I get something like that: > gam.object.ALC<-gam(X143S~ALC,data=dane,family=binomial) >

Hi, I am new to model selection by coefficient shrinkage method such as lasso. And I became particularly interested in variable selection in Cox regression by lasso. I became aware of the coxpath() in R package glmpath does lasso on Cox model. I have tried the sample script on the help page of coxpath(), but I have difficult time understanding the output. Therefore, I would greatly appreciate if

Hi, I'm playing around with stepwise regression, using the step function, and believe I have found a bug (or at least, a strong case for improvement): > ex <- data.frame(y=rnorm(100),x=rnorm(100)) > l <- lm(y ~ x, data=ex) > step(l) [output is correct] > rm(ex) > step(l) Start: AIC=11.79 y ~ x Df Sum of Sq RSS AIC - x 1 0.120 108.221 9.900

Hi there, I'd like to create a heatmap from my matrix with a) a defined color range (lets say from yellow to red) b) using striking colors above and below a certain threshold (above = "green", below = "blue") Example matrix (there should be a few outliers generated...) + simple levelplot without outliers marked: library(lattice) my.mat <- matrix(rnorm(800), nrow =