similar to: Question about food sampling analysis

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Hi, Anybody can tell me why I don't have colors in my picture? library(lattice) my.pch<-c(17,16,15,18,20,9,10,12) my.fill<-c('yellow','black','green','red','blue','cyan','magenta','pink') wzorzec1<- c(1,3,2,4,6,4,2,3) wzorzec2<- c(5,3,6,6,2,3,4,1) a<-factor(wzorzec1) b<-factor(wzorzec2)

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Greetings UseRs, Pls advise if there is a way to write a func that can be supplied to aggregate to compute weighted MeanAbsolute Dev (MAD). I am having trouble passing the correct weights from each group level and cannot see the code behind aggregate. But maybe 'aggregate' is not the best way to do that. > m1 <-

## Not run: from <- sprintf("<sendmailR@ to <- "<olafm at datensplitter.net>" subject <- "Hello from R" msg <- "It works!" sendmail(from, to, subject, msg, control=list(smtpServer="ASPMX.L.GOOGLE.COM")) ## End(Not run) the above commands are provided in this document ie http://cran.r-project.org/web/packages/sendmailR/sendmailR.pdf

Dear R-users, I am trying to make a plot with ggplot-geom_tile(), but cannot remove some unwanted (white) lines through my plot. Below a reproducible example: ##### library(ggplot2) tot=as.data.frame(rep(seq(-50,50,5),each=21)) names(tot)="precip" temp=rep(seq(-5,5,0.5),21) tot$temp=temp disc=array(dim=c(21,21)) for(i in 1:21){ for(y in 1:21){ temp<-

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Dear all, Lattice provides automatic coloring for subgroups on each panel by the simple use of a groups statement. For an application I want to change these colors to a predifined set. This works well using a panel function in stead of the default as long as there are only points in the graphs. When I set type="b" things get messed up. Any idea why? I include sample code for

Hello R-Experts, I've got a question, concerning the automation of a number of regressions (lm) with the help of a loop (for i in ....). The situation is as follows (the code follows after that): I have my data in an access database. I have historical data for 2000 parts, for each of this parts I want to do a regression analysis, so I need to do 2000 regressions (just for one country, there

I'm new to this list, so please forgive me if this has been discussed before. It appears that one of the (commendable) design goals of OpenSSH is to re-use existing open-source libraries wherever possible in order to simplify the OpenSSH code and hopefully improve security in the process. As exhibited by the current, non-open SSH, supporting all of the nuances of authentication and logins

Hello everyone. In my last post I did not explained my problem quite well. I made a principal component analysis and took the 2 first principal components. I made ​​a chart of my points based on the score of the 2 PC. I would like to add on this graph a 95% confidence region. To do this I used the ellipse function as follows: pcsref=PC$score[data[,1]==ref,1:2] #matrix containing the scores

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POSTING DATE: JUNE 9, 2011 CLOSING DATE: JUNE 30, 2011, OR UNTIL FILLED The International Food Policy Research Institute (IFPRI) seeks to recruit a Technical Writer into its HarvestChoice team in the Environment and Production Technology Division. This is a one-year, exempt, renewable appointment depending on performance and funding based at IFPRI headquarters in Washington, D.C. HarvestChoice is

Dear R Group I was trying to use the triangle.test function in SensoMineR and strangely i encounter a error in the output of preference matrix from the analysis. To illustrate, pl see the following dataframe of a design with the response and preference collected as shown below: design<-structure(list(`Product X` = c(3, 1, 4, 2, 4, 2, 1, 3, 4, 2, 4, 2, 1, 3, 4, 2, 4, 2, 3, 1), `Product Y` =

I would like to fit a hierarchical regression model from Witte et al. (1994; see reference below). It's a logistic regression of a health outcome on quntities of food intake; the linear predictor has the form, X*beta + W*gamma, where X is a matrix of consumption of 82 foods (i.e., the rows of X represent people in the study, the columns represent different foods, and X_ij is the amount of

Hello, I get an error while retrieving records from the following model structure. Tables foods - id, food foodallergies - food_id, symptom_id, a few other columns symptoms - id, symptom Models class Food < ActiveRecord::Base has_many :foodallergies has_many :symptoms, :through => :foodallergies end class Symptom < ActiveRecord::Base has_many :foodallergies has_many :foods,

Hello, I want to know if there are some functions or packages to solve differential and integral equation using R. Thanks. Shao chunxuan. [[alternative HTML version deleted]]

So I''m trying to do that hot new thing with AJAXy forms: http://idiet.toasterwaffles.com/foods/list Here''s the relevant code in list.rhtml (for the form portion) <tbody> <%= render_collection_of_partials "list_stripes", @foods %> </tbody> <tfoot> <tr id="addFood"><%= form_remote_tag( :html =>

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