similar to: summarize-plyr package

Hi, I have set up two monitors. I am using windows XP. I would like to keep one window- command line in one monitor and the script and graphs in the second monitor. How do I set it up? It works for word documents simply by dragging the document. It does not work if I drag and drop the scripts window. Is R not compatible for this? Thanks. Chetty -- Professor of Family Medicine Boston University

Hi, When I import an excel "CSV" file, large numbers such as " 43988014.3" is imported as "43988014", leaving out the decimal ".4". How to import keeping the fraction? Thanks. Chetty -- Professor of Family Medicine Boston University Tel: 617-414-6221, Fax:617-414-3345 emails: chettyvk@gmail.com,vchetty@bu.edu [[alternative HTML version deleted]]

Hi, I have dates as follows: 1/4/2006 0:00:00 AM It is a factor at present. How do I find out the day of the week from this? How do I convert to Julian date format? Thanks. Chetty -- Professor of Family Medicine Boston University Tel: 617-414-6221, Fax:617-414-3345 emails: chettyvk@gmail.com,vchetty@bu.edu [[alternative HTML version deleted]]

Hi,I would like add a horizontal line at 126 (col=red) and a vertical line at 6.5 ( col= blue) in each panel .How should I use the panel.abline function in the following code I am using: ------------------ library(lattice) with(reg.dat.5,coplot(lbxglu~lbxgh|eth,panel=panel.smooth,xlab="ABC", ylab="FBG")) ---------------------------------------- Thanks a lot. Professor of

Hi, This happens when I read in large numbers; ------------------------------------ > as.numeric(4398801.3) [1] 4398801 > as.numeric(439880.3) [1] 439880.3 ------------------------------------ Please help to read in numbers with more than 8 characters! Thanks. Chetty -- Professor of Family Medicine Boston University Tel: 617-414-6221, Fax:617-414-3345 emails:

Hi , Name rate HEALTHALLIANCE HOSPITALS, INC -1.06211747 MOUNT AUBURN HOSPITAL 0.50960291 STURDY MEMORIAL HOSPITAL 2.64233232 LAWRENCE GENERAL HOSPITAL 2.15628558 CAMBRIDGE HEALTH ALLIANCE 1.23623144 I would like use

I would appreciate any help for the following question. How to increase the font size of labels for the x and y axes in the following code? --------------------------------- xyplot(lbxglu~lbxgh|eth,reg.dat.5, panel = p, col = 1:2, par.strip.text = list(cex = 1.25,col="brown"), xlab="A1C",ylab="Fasting Plasma Glucose", main="FPG") p <- function(..., col)

Hi,I would like to fill the dots in this graph. I would appreciate help to do that if possible. If fill is not possible, can I make it bright? I do NOT want to increase the size. __________________ dotplot(hu.event~fitted.adj.cat,data=risk.benefit.cast,groups=treat, auto.key=list(space="right")) ------------------------------------------ Thanks. Chetty -- Professor of Family Medicine

Hi, Please help to correct my error in the following. I want to plot the values of 'x" in increasing order. ----------------------------------- library(lattice) Name<-c("A","B","C") x<-c(15,20,10) test<-data.frame(Name,x) dotplot(Name~x,test) dotplot(reorder(Name,x)~x,test) "reorder" has no effect! Thanks. Chetty ------------------------

HI, I have to work with data objects. I have trouble. I would like to convert date to a integer of Julian dates omitting hours, minutes etc. I tried as. Date and also as.POSIXlt, ct etc. Please help me to compute the following difference. I get an "NA" for output. 1/14/2006 0:00:00 AM -1/9/2006 0:00:00 AM Thanks. Chetty -- Professor of Family Medicine Boston University Tel:

Hi,I would like to reshape the following "wide" data set to "long" form. I would appreciate help with the correct code for "reshape". I tried a few unsuccessfully. Thanks. Chetty __________________________________________________ dat.1 Grp X0 X3 X6 X12 X25 X501 C 0.5326517 0.6930942 0.9403883 1.157571

Hi,In SPlus, I use the function 'cluster' with GLM to adjust for correlated errors within a cluster ( e.g. cluster(ID)) as a covariate. Is there a similar function in R to use with GLM ? I am new to R. Thanks. V.K. Chetty -- Professor of Family Medicine Boston University Tel: 617-414-6221, Fax:617-414-3345 emails: chettyvk@gmail.com,vchetty@bu.edu [[alternative HTML version deleted]]

Hi ,When I try to load the 'mgcv" package, often, but not always, get this error message. What am I doing wrong? __________________ This is mgcv 1.4-1.1 Error in runif(1) : .Random.seed is not an integer vector but of type 'list' Error : .onAttach failed in 'attachNamespace' Error: package/namespace load failed for 'mgcv' -----------------------------------------

Hi , I have created a parallel coordinate plot using rrgobi. I like to make a powerpoint slide. I am not able to copy and paste. Is there any way to do this? Thanks for any help. Chetty -- Professor of Family Medicine Boston University Tel: 617-414-6221, Fax:617-414-3345 emails: chettyvk@gmail.com,vchetty@bu.edu [[alternative HTML version deleted]]

This is probably simple, but I just can't see it... I want to calculate the R^2s for a series of linear models where each term is dropped in turn. I can get the RSS from drop1(), and the r.squared from summary() for a given model, but don't know how to use the result of drop1() to get the r.squared for each model with one term dropped. Working example: library(vcd) # for

Hi, My results are getting out of order after I do the following command: count = result.inject({}) { |hsh, row| hsh[row[''name'']] = row[''count''].to_i; hsh } Why? Here are more specifics: My complete method is this (based off of acts_as_taggable code - not'' DHHs, but the original one): def self.sql_to_count_plays(lookback) sql =

Hi everybody, I''ve started to learn Ruby on Rails with the two books, of course I''m experimenting outside the examples in the book and walking against some things I didn''t learn yet. so here''s the question: Is it possible to access one model from within another? Actually I have a Many to Many relationship between tables and I''m trying to realize

I can't seem to figure out why I'm getting this error. The output is copied right off the screen. Notice how in some cases the back slash is missing. In other cases, it can't read a file that I know is there. Thanks in advance > library(foreign) > hrout <- read.spss("c:\\hrab200.sav") Error in read.spss("c:\\hrab200.sav") : unable to open file

Is it possible to trace Samba authenticated user? That is, after a user has been authenticated versus a Samba acting as PDC, is it possible to know if such user is still connected to the Microsoft network or they have been disconnected? What I would like to do is to use Samba as authentication server in order to grant the access to other services (for example Internet navigation through a proxy)

I'm trying to make correlograms using corrgram. See below for a simple example. #### library(corrgram) data(baseball) vars1 <- c("Assists","Atbat","Errors","Hits","Homer","logSal") vars2 <- c("Putouts","RBI","Runs","Walks","Years")