similar to: Request - adding recycled "lwd" parameter to polygon

Hi, I don't know how to make prediction with a factor in the linear model. Say yd=c(1,2,3,4,5) > sl=c(2,3,4,5,6) > sex=c("male","male","female","female","male") > sex=factor(sex) > m=lm(sl~yd+sex+sex:yd) How to make a prediction with new data like yd=c(4,5,6,7,8) for male and female separately ? Thank you very

Hello all, I hope this question is appropriate for this ML. Basically, I am wondering if when you create a new variable, if the variable holds some information about how it was created. Let me explain, I have the following code to replicate an example in a textbook (Greene's Econometric Analysis), using the systemfit package. dta <-

Hi, I am trying to learn time series, and I am attending a colleague's course on Econometrics. However, he uses e-views, and I use R. I am trying to reproduce his examples in R, but I am having problems specifying a AR(1) model. Would anyone help me with my code? Thanks in advance! Reproducible code follows: download.file("https://sites.google.com/a/proxima.adm.br/main/ex_32.csv

Hi, This is my code (my data is attached): library(languageR) library(rms) library(party) OLDDATA <- read.csv("/Users/Abigail/Documents/OldData250412.csv") OLDDATA$YD <- factor(OLDDATA$YD, label=c("Yes", "No"))? OLDDATA$ND <- factor(OLDDATA$ND, label=c("Yes", "No"))? attach(OLDDATA) defaults <- cbind(YD, ND) set.seed(47) data.controls

Dear R-users, I need to dynamically recognize the index of a given string myStr in a vector of string. The problem is that myStr might contain parenthesis, causing grep not to recognize it the way I want (see below). The help mentions that the pattern used by grep should be in the POSIX format... I guess the problem is here; unfortunately, I am not familiar with the subtleties of the POSIX

[[this bounced first, because it has 'help' in the Subject line ... -- Martin Maechler ]] I am a complete novice R programmer. (Though I know C quite well) I am trying to write some R code to do the following simulation. There is a 2-frame "movie" of noise and signal dots. the noise dots have random positions in each frame. The signal dots are placed randomly in frame 1,

Dear Experts, When using "plot" and "polygon", I can change the density and angle of the shaded area lines when plotting is done in regular scale. It does not seem to work in 'log' scale. Any suggestions would be highly appreciated! below is an example: plot(1:10,c(1:10)^2*20,log="y")

Hi, Is there any tool to check if there is update version of a package available? I look for things alike YUM for linux? YD

  Dear R helpers,   Suppose I am reading a csv file as   yd    =   read.csv("mydata.csv")   The actual data in the mydata.csv file is say for example like this -     Date             day_1     days_15     day_30    days_60    days_90      days_180 Nov 11            5             14               1               3              21               8 Nov 10            7             

Dear R users. Recently I wanted to update my R distribution to the current one (R-2.7.1). I am running a Fedora core 8 distirbution. The installation went fine, but when I tried to add some additional packages the majority made an exit with an error. Only a few least demanding (e.g. RColorBrewer) managed to get through the installation process. What happened between the versions 2.6.x and 2.7.x

Oops, I've managed to exclude the list... On 12 September 2012 19:28, Nathan Jeffords <blunted2night at gmail.com> wrote: > > > On Wed, Sep 12, 2012 at 8:50 AM, Manu <turkeyman at gmail.com> wrote: > >> On 12 September 2012 18:19, Nathan Jeffords <blunted2night at gmail.com>wrote: >> >>> This project seems to have some ability to convert to

Hi all, Well, suggestion for workarounds for the namespace problems are welcome... this is a 7 minutes compile files on a pentium 4 3ghz 700Mb ram... The fatal error at the end MAY depend on the previous... or at least, I hope so. cl /nologo /TP /EHsc /GR /Zi /Yd /D__STDC_LIMIT_MACROS /DHAVE__FINITE_IN_FLOAT_H /DHAVE__ISNAN_IN_FLOAT_H /ISTLport-4.6.2\stlport /Illvm\inc lude

Dear all, I was wandering what could be wrong with my system (regularly updated Fedora core 8) so that installing packages does not succeed with almost every package. I follow the procedure specified in the help file R-admin section 6.3. This is not a feature new to the current version but happened (to me) in the previous version as well. Additionally R-help html pages try to follow wrong links

Hi, I have a dataset including monthly date from 1971-01-01 to 2009-01-01. The dates are character variables. I want to select the subsample from my original data, so I use mydata3<-window(mydata,start="1972-02-01",end="2005-02-01"), or mydata3<-window(mydata, start=as.date("1972-02-01"),end=as.date("2005-02-01")) or mydata3<-window(mydata,

Hi all Xapian-devel, Gist: https://gist.github.com/10d2222d8bffe8d7631d I'm using Xapian-TermGenerator to extract Norwegian sentences to vsm (vector space model) using TermGenerator. But when I test generating vsm from 'Truet med ? stevne misforn?yd PC-kunde - PC-leverand?ren Asus likte sv?rt d?rlig kundens misforn?yde leserbrev.' It doen't return 'asus' result in vsm.

I have a question about pooling or "stacking" several time series ?samples? (sorry in advance for the long, possibly confusing, message). I'm sure I'm revealing far more ignorance than I'm aware of, but that's why I'm sending this... [Example at bottom] I have regional migration flows (?samples?) from, say, regions A to B, A to C, B to A, ?., C to B (Noted as

Dear all, I'm struggling with a plot and would value any help! I'm attempting to highlight a histogram and density plot to show a proportion of cases above a threshold value. I wanted to cross-hatch the area below the density curve. The breaks and bandwidth are deliberate integer values because of the type of data I'm looking at. I've managed to do this, but I don't think it

Hi, What is the reason for seq.Date to require the 'by' argument and not to default it to 1 in the example below? > seq(from=as.Date("1996-01-01"), to=as.Date("1996-12-01")) Error in seq.Date(from = as.Date("1996-01-01"), to = as.Date("1996-12-01")) : exactly two of `to', `by' and `length.out' / `along.with' must be specified

struct X86AsmPrinter is in an anonymous namespace, but printInstruction is declared in namespace llvm. try editing the tablegen output to move X86AsmPrinter::printInstruction into an anonymous namespace, not llvm. I suspect this will at least fix the first problem. Then we can figure out the proper longterm fix. Andrew On Tue, 2004-10-12 at 03:56, Paolo Invernizzi wrote: > Hi all, >

Dear list, i'm a new R user, so I apologize if the topic is already being addressed by some other user. I'm trying to determine if the reproductive success of a species of bird is related to a list of covariates. These are the covariates: ? elev: elevation of nest (meters) ? seadist: distance from the sea (meters) ? meanterranova: records of temperature ? minpengS1: records