[R] tail a file in R

Greetings, not sure tail in R can tail a file as documented here http://rss.acs.unt.edu/Rdoc/library/R.basic/html/tail.html but when I tried my R version 2.14.2 it doesn't work. I need to tail many files to see if appending operations need to be performed on them.. Thanks! Jim. __

[R] Plotting DMAs (Direct Marketing Areas)

Hey useRs! Do any of you guys know how to plot DMAs within R (preferrably within the maps() package)? I haven't been able to find any resources on this, but I apologize if this is a dumb question and I'm overlooking the obvious answer. Thanks for your help! Josh [[alternative HTML vers

Re: [R] calculate within-day correlations

Hi Joshua, I was attempting to work with your code on the larger datasets, which I have to read in with 'read.table', but I've apparently missed something. When I attempt to massage the data.frame a bit in the code below, as.POSIXct drops the time component which then precludes use of xts. I t

Re: [R] Parallel R

I addition to Michael's suggestions, you can also check out this tutorial which shows how to use lapply into EC2. http://www.rinfinance.com/agenda/2012/workshop/WhitArmstrong.pdf Unfortunately, rzmq is not available on windows, so this may not be the best solution for your setup. -Whit On Fri,

Re: [R] Analyzing Poor Performance Using naiveBayes()

On Thu, 09-Aug-2012 at 03:40PM -0700, Kirk Fleming wrote: |> My data is 50,000 instances of about 200 predictor values, and for |> all 50,000 examples I have the actual class labels (binary). The |> data is quite unbalanced with about 10% or less of the examples |> having a positive outcome and th

[R] Random Forest and Correlated Fields

Does anyone know if there are any special considerations with Random Forest and correlated fields or rather derived fields? For example if we are trying to predict who might leave our company to go work for another company some of the variables we may look at are below (in addition to others).

Re: [R] please comment on my function

You can alway convert to lower case afterwards with probably a shorter vector. You did not indicate that you needed that conversion; it only looked like you did it for the regular expression. On Fri, Sep 14, 2012 at 3:13 PM, Sam Steingold wrote: >> * jim holtman [2012-09-14 13:10:37 -0400]: >>

Re: [R] USCensus2000 package

One more i.e cdp. Best Regards, Bhupendrasinh Thakre Sent from my iPhone On Sep 14, 2012, at 5:30 PM, Rui Barradas wrote: > Hello, > > Check the packages UScensus2000blkgrp and UScensus2000tract > > http://stat.ethz.ch/CRAN/web/packages/UScensus2000blkgrp/index.html > http://stat.ethz.ch/C

Re: [R] USCensus2000 package

Hello, Check the packages UScensus2000blkgrp and UScensus2000tract http://stat.ethz.ch/CRAN/web/packages/UScensus2000blkgrp/index.html http://stat.ethz.ch/CRAN/web/packages/UScensus2000tract/index.html Hope this helps, Rui Barradas Em 14-09-2012 15:22, Michael Leitson escreveu: Does anyone k

[R] htmlParse pop ups over web pages

Hello All, I am trying to write a routine that loops over some links and parses those links using htmlParse.  The problem is that one of the links may display a pop up window on top of that link's web page.  If there is a pop up, the routine bombs and I get an error message that the url doesn't

Re: [R] aggregate() runs out of memory

Hi, On Fri, Sep 14, 2012 at 4:26 PM, Dennis Murphy wrote: > Hi: > > This should give you some idea of what Steve is talking about: > > library(data.table) > dt <- data.table(x = sample(10, 1000, replace = TRUE), > y = rnorm(1000), key = "x") > dt[, .N, by = x] > syst

[R] Forcing a reference category in logistic model

Hello all, I am running a logistic model with a continuous variable as first predictor and factor variable as the second. I would like to include an interaction term in the following fashion: outcome ~ continous + factor + normalized(continuous):factor My problem is that when I do so, the re

[R] SQL query with multicore option

Hi all, I have the following sql query that I am executing on a machine with single core. I want to know how can I execute the same sqery on a maching that is running with 4 cores. Please provide me the code. NEW_TABLE <- rhive.query("SELECT A, B, COUNT(C) FROM TABLE_A WHERE A>='01-01-2012'") Al

Re: [R] aggregate() runs out of memory

Hi: This should give you some idea of what Steve is talking about: library(data.table) dt <- data.table(x = sample(10, 1000, replace = TRUE), y = rnorm(1000), key = "x") dt[, .N, by = x] system.time(dt[, .N, by = x]) ...on my system, dual core 8Gb RAM running Win7 6

Re: [R] plotting smoother function on raw data

Well it's not pretty, but I guess you could try something like this... best, simon library(mgcv) dat <- gamSim(1,n=200,dist="normal",scale=2) b <- gam(y ~ s(x1)+s(x2),data=dat) m <- 40 x1 <- seq(0,1,length=m) x2 <- seq(0,1,length=m) pd <- expand.grid(x1=x1,x2=x2) fv <- predict(b,newdata=pd,se=TRU

Re: [R] aggregate() runs out of memory

Using data.table will probably speed lots of things up, but also note that aggregate(x, FUN=length, by)$x is a slow way to compute table(by) . Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-pro

Re: [R] $ operator is invalid for atomic vectors

Hi, On Fri, Sep 14, 2012 at 2:33 PM, agrins wrote: > HI all- > > I have used this .fun in S+ without a problem however, in R when I run this > code to generate multiple graphs: > > trendplot<-function(datafr,dataf2, abbrev="", titlestr="", > devname="s",filen="",styr=1990,endyr=2012) { > if (!is.

Re: [R] Parallel R

On Fri, Sep 14, 2012 at 7:22 PM, Bazman76 wrote: > Thanks for that I hadn't realised parallel could run on windows Pc's. > > The code is differential evolution but its not part of a package. > > Still I would like to be able to use cloud computing if possible, any > thoughts on the easiest way to

Re: [R] aggregate() runs out of memory

Hi, On Fri, Sep 14, 2012 at 3:26 PM, Sam Steingold wrote: > I have a large data.frame Z (2,424,185,944 bytes, 10,256,441 rows, 17 > columns). > I want to get the result of > table(aggregate(Z$V1, FUN = length, by = list(id=Z$V2))$x) > alas, aggregate has been running for ~30 minute, RSS is 14G,

[R] aggregate() runs out of memory

I have a large data.frame Z (2,424,185,944 bytes, 10,256,441 rows, 17 columns). I want to get the result of table(aggregate(Z$V1, FUN = length, by = list(id=Z$V2))$x) alas, aggregate has been running for ~30 minute, RSS is 14G, VIRT is 24.3G, and no end in sight. both V1 and V2 are characters (not

Re: [R] please comment on my function

> * jim holtman [2012-09-14 13:10:37 -0400]: > > more than half the time is in 'tolower' and 'nchar', so it is not all > 'sub's problem. aha, thanks! > This version runs a little faster since it does not need the 'tolower': > > canonicalize.language <- function (s) { > # s <- tolower(s) > lo

Re: [R] ctrl+r does not work sometimes

Hello, It never happened to me, ctrl-r always works. But I seldom use ctrl-a and even less times click on the run icon. So it seems to be a conflict with those. sessionInfo() R version 2.15.1 (2012-06-22) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=Portuguese_Portugal.1252

[R] $ operator is invalid for atomic vectors

HI all- I have used this .fun in S+ without a problem however, in R when I run this code to generate multiple graphs: trendplot<-function(datafr,dataf2, abbrev="", titlestr="", devname="s",filen="",styr=1990,endyr=2012) { if (!is.null(dev.list())) {dev.off()} dataf<-datafr[datafr$abbrev==abbrev

Re: [R] Parallel R

Thanks for that I hadn't realised parallel could run on windows Pc's. The code is differential evolution but its not part of a package. Still I would like to be able to use cloud computing if possible, any thoughts on the easiest way to achieve that using a windows based PC? Found this blog whic

Re: [R] Cannot install package xlsx

On 14.09.2012 15:30, ramoss wrote: It looks like they are all corrupted. I tried several other CRAN sites across the world. How can we notify the package owner? Take a look at the packages CRAN webpage: http://cran.r-project.org/web/packages/xlsx/index.html -- View this message in contex

[R] parallel version of tapply() or table()?

Hello R-helpers. I've tried to recreate a parallel version of tapply() and table() using a combination of the parallel functions mclapply() and pvec() and papply(), but haven't been successful. In the end, I'm trying to get a cross tab of two vectors. I currently (can) use tapply(..., sum) and

Re: [R] plotting points on a map, assigning vectors to values from dataset

Sorry, I forgot to say that I use Rstudio (newest version), but it is the same problem with Mac and Windows. -- View this message in context: http://r.789695.n4.nabble.com/plotting-points-on-a-map-assigning-vectors-to-values-from-dataset-tp4643182p4643183.html Sent from the R help mailing list

[R] plotting points on a map, assigning vectors to values from dataset

Dear everyone, as a newbie I fear I have made an easy mistake and am just too blind to see it. Can anyone help me seeing the (possibly) obvious? I have a command that creates a map of South America. In a separate txt-file I stored data about latitude and longitude of languages, and in a third colu

Re: [R] Parallel R

On Fri, Sep 14, 2012 at 6:00 PM, Bazman76 wrote: > Hi there, > > I have a largish optimisation problem (10 years of daily observations). > > I want to optimise between 4 and 6 parameters. > > I'd like to utilise parallel computing if I can as I will have to run it > with different starting values

Re: [R] ctrl+r does not work sometimes

On 14/09/2012 10:44 AM, Jie wrote: Dear All, This might be a tiny question but I do not know the reason. On my desktop, sometimes when I use the mouse or ctrl+A select a piece of R script, and use ctrl+R to run it, there is no action. If I redo it, it may work. On my laptop, it is fine. Both are

[R] Parallel R

Hi there, I have a largish optimisation problem (10 years of daily observations). I want to optimise between 4 and 6 parameters. I'd like to utilise parallel computing if I can as I will have to run it with different starting values etc. I have a quad core PC with 16GB ram running windows 7. H

Re: [R] Problem in installing "quantreg" package

On Sep 14, 2012, at 1:46 AM, Ledile Mankga wrote: > Dear Sir /Madam > > I have a problem in installing quantreg package. I recieve this message > „package Œquantreg‚ is not available (for R version 2.13.1). Binary packages are only available from some repositories for the current version of R.

Re: [R] modified ward's method

Dear Maitra, yah!!! i m willing to do hclustering. i initially used "simple ward" but it didnt give any satisfying result. I came know that "modified ward" can solve the issue. i need to know how to do that? thnx for your concern regards eliza > Date: Fri, 14 Sep 2012 12:11:57 -0500 > From: ma

Re: [R] swap hist() colours

Hello, Use ?colorRampPalette nr <- nrow(yes.matrix_11) clrs <- colorRampPalette(c("white", "black"))(nr) barplot(yes.matrix_11, beside =TRUE, ylim=c(0,250), col = clrs) [...etc...] Hope this helps, Rui Barradas Em 14-09-2012 12:33, Robert Pazur escreveu: Hi, i created a set of graphs and wa

Re: [R] modified ward's method

Sorry but what is modified Ward's method? I am guessing this has to do with hierarchical clustering. Ranjan On Fri, 14 Sep 2012 16:09:00 + eliza botto wrote: > > Dear R users, > is there a package in R, where one can use "modified ward's method" for > distance measurement?? > thnx in adva

Re: [R] please comment on my function

First thing to do is to run Rprof and see where the time is going; here it is from my computer: self.time self.pct total.time total.pct tolower4.4239.46 4.42 39.46 sub3.5631.79 3.56 31.79 nchar

Re: [R] Creation of text files for use with UCODE_2005

Have you looked at the sprintf function? E.g., > n <- 3.14 * 10^(0:4) > x <- state.name[35:39] > cat(sprintf("N:%8.2fSTATE:%0.8s \n", n, x), sep="") N:3.14STATE:Ohio N: 31.40STATE:Oklahoma N: 314.00STATE:Oregon N: 3140.00STATE:Pennsylv N:31400.00STATE:Rhode Is

Re: [R] Boxplot lattice vs standard graphics

Thanks for the example. Makes it easy to see what you mean. Yes, if I understand you correctly, you are right: boxplot() (base) transforms the axes, so ?boxplot.stats, which is the function that essentially computes the boxplot, does so on the original data. bwplot(lattice) transforms the data fir

Re: [R] R equivalent of python module structure and functionality?

> Jeff Newmiller > on Wed, 12 Sep 2012 14:57:38 -0700 writes: > It is my normal practice to install R libraries without > root. Just use your own library directory instead of the > system library. > -

[R] Any way to get read.table.ffdf() (in the ff package) to pass colClasses or comment.char parameters through to read.fwf() ?

Hi everyone, my apologies if I'm overlooking something obvious in the documentation. I'm relatively inexperienced with the (awesome) ff package. My goal is to use the read.table.ffdf() function to call the read.fwf() function and pass through the colClasses and comment.char arguments. The code b

[R] please comment on my function

this function is supposed to canonicalize the language: --8<---cut here---start->8--- canonicalize.language <- function (s) { s <- tolower(s) long <- nchar(s) == 5 s[long] <- sub("^([a-z]{2})[-_][a-z]{2}$","\\1",s[long]) s[nchar(s) != 2 & s != "c"] <- "u

Re: [R] Creation of text files for use with UCODE_2005

On Fri, Sep 14, 2012 at 4:33 PM, Jesse Robinson wrote: > Hello, > > I'm new to R-help, although I am a frequent user of its resources. I am > using the package REACTRAN to run some relatively simple transport modeling > (which we hope will evolve greater functionality over time). I would like to >

Re: [R] concatenating two vectors

On 14-09-2012, at 14:54, Özgür Asar wrote: > Dear all, > > I want to concatenate the elements of two vectors such as > > a<-c("a1","a2") > b<-c("b1","b2") > > and obtain > > "a1b1", "a1b2","a2b1","a2b2" > > I tried the paste and paste0 functions, but they yielded elementwise > concatenation

Re: [R] concatenating two vectors

Hi, Try this:  paste0(expand.grid(a,b)$Var1,expand.grid(a,b)$Var2) [1] "a1b1" "a2b1" "a1b2" "a2b2" A.K. - Original Message - From: Özgür Asar To: r-help@r-project.org Cc: Sent: Friday, September 14, 2012 8:54 AM Subject: [R] concatenating two vectors Dear all, I want to concatenate

Re: [R] linear mixed-effects models with two random variables?

Post on R-sig-mixed-models rather than here for better responses. -- Bert On Fri, Sep 14, 2012 at 2:19 AM, barbara costa wrote: > Dear R users, > Does anyone knows how to run a glmm with one fixed factor and 2 random > numeric variables (indices)? Is there any way to force in the model a > separ

Re: [R] concatenating two vectors

On Fri, Sep 14, 2012 at 1:54 PM, Özgür Asar wrote: > Dear all, > > I want to concatenate the elements of two vectors such as > > a<-c("a1","a2") > b<-c("b1","b2") > > and obtain > > "a1b1", "a1b2","a2b1","a2b2" > > I tried the paste and paste0 functions, but they yielded elementwise > concatenatio

Re: [R] ctrl+r does not work sometimes

I can confirm that I have this problem occasionally as well (windows 7 laptop), I see it more often when clicking the button in the GUI that does the same as ctrl-R. Here is my sessionInfo: R version 2.15.1 (2012-06-22) Platform: x86_64-pc-mingw32/x64 (64-bit) locale: [1] LC_COLLATE=English_Unit

Re: [R] concatenating two vectors

Dear Ozgur, Try sort(apply(expand.grid(a, b), 1, paste0, collapse = "")) HTH, Jorge.- On Fri, Sep 14, 2012 at 8:54 AM, Özgür Asar <> wrote: > Dear all, > > I want to concatenate the elements of two vectors such as > > a<-c("a1","a2") > b<-c("b1","b2") > > and obtain > > "a1b1", "a1b2","a2b1"

[R] Creation of text files for use with UCODE_2005

Hello, I'm new to R-help, although I am a frequent user of its resources. I am using the package REACTRAN to run some relatively simple transport modeling (which we hope will evolve greater functionality over time). I would like to optimize model parameters to match observed field data, and am in

[R] modified ward's method

Dear R users, is there a package in R, where one can use "modified ward's method" for distance measurement?? thnx in advance regards eliza [[alternative HTML version deleted]] __ R-help@r-project.org

[R] rcdk package, fingerprint without name?

Hi! I have a question concerning the rcdk package: I generated a test sdf-file with 3 molecules in it and tried to perform clustering by fingerprints and plot the results in a dendogramm. This is what I did: mols <- load.molecules ("molecules.sdf") fp.list <- lapply (mols, get.fingerprint, 'ma

Re: [R] Cannot install package xlsx

It looks like they are all corrupted. I tried several other CRAN sites across the world. How can we notify the package owner? -- View this message in context: http://r.789695.n4.nabble.com/Cannot-install-package-xlsx-tp4643054p4643142.html Sent from the R help mailing list archive at Nabble.co

Re: [R] plot dataframe with inconsistently relations

On Fri, Sep 14, 2012 at 9:20 AM, Geophagus wrote: > yes thats right. I want to see all points - so I need a line with dots > + geom_point() should work, but I'm not at my computer to test. Also, as I said before: please quote context Cheers, Michael

[R] swap hist() colours

Hi, i created a set of graphs and want to find out how to swap the bar colours (from white to black) and set it to be default for all graph that i will produce (f.e. for different number of columns). some sugggestions? thanks in advance. here is an example: ## a <-read.

[R] USCensus2000 package

Does anyone know the appropriate R code to obtain census tracts (tract and block level) from addresses by using Zack Almquist's USCensus2000 package? Thank you, -- Michael Leitson michael.leit...@gmail.com __ R-help@r-project.org mailing list https://

[R] Boxplot lattice vs standard graphics

Given my reproducible example test<-structure(list(site = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 5L), .Label = c("A",

[R] concatenating two vectors

Dear all, I want to concatenate the elements of two vectors such as a<-c("a1","a2") b<-c("b1","b2") and obtain "a1b1", "a1b2","a2b1","a2b2" I tried the paste and paste0 functions, but they yielded elementwise concatenation such as "a1b1","a2b2" I am wondering that is there an efficient way o

[R] linear mixed-effects models with two random variables?

Dear R users, Does anyone knows how to run a glmm with one fixed factor and 2 random numeric variables (indices)? Is there any way to force in the model a separate interaction of those random variables with the fixed one? I hope you can help me. #eg. Reserve <- rep(c("In","Out"), 100) fReserve <-

Re: [R] compare different data-formats

HI, Try this: vec1<-c("14.Aug.2012-16:32","3.Sep.2012-16:50") vec2<-c(c("2012.08.14", "2012.09.3")) vec1DateF<-as.Date(vec1,format="%d.%b.%Y-%H:%M") vec2DateF<-as.Date(vec2,format="%Y.%m.%d")  ifelse(difftime(vec1DateF,vec2DateF)==0,TRUE,FALSE) #[1] TRUE TRUE A.K. - Original Message - F

[R] Problem in installing "quantreg" package

Dear Sir /Madam I have a problem in installing quantreg package. I recieve this message “package ‘quantreg’ is not available (for R version 2.13.1). Thanks in adavance for the help. Regards, Ledile Mankga - Ledile Mankga Departm

Re: [R] plot dataframe with inconsistently relations

yes thats right. I want to see all points - so I need a line with dots -- View this message in context: http://r.789695.n4.nabble.com/plot-dataframe-with-inconsistently-relations-tp4642766p4643116.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] Printing localized pdf file from Sweave snippets

Hello! Many thanks, but this is not working. I put: \usepackage[utf8]{inputenc} and than: 'pu\u010dina (open-sea)' Blank space is printed in pdf file, after R CMD Sweave and pdflatex. Please, any other idea?! I am losing my mind here... Best, PM > This isn't really an answer to your question, b

Re: [R] when to use "I", "as is" caret

On Sep 14, 2012, at 12:41 AM, agent dunham wrote: > Dear community, > > I've check it while working, but just to reassure myself. Let's say we have > 2 models: > > model1 <- lm(vdep ~ log(v1) + v2 + v3 + I(v4^2) , data = mydata) If you want to create a second degree polynomial for "proper"

[R] ctrl+r does not work sometimes

Dear All, This might be a tiny question but I do not know the reason. On my desktop, sometimes when I use the mouse or ctrl+A select a piece of R script, and use ctrl+R to run it, there is no action. If I redo it, it may work. On my laptop, it is fine. Both are running windows 7. Best wishes, Jie

[R] problem with user defined panel function in xyplot

Hi everyone,   I am trying to do a horizonplot using my own time series data. I know that there is a horizonplot function in latticeExtra, but on closer examination i think that the graph itself is slightly wrong (it displays some regions as triangles and i think they should be trapezoids, an

Re: [R] help server slow

Well, if nothing else it is probably time to update anyway. If that does not help, we can hope that some of the gurus have some suggestions. It really sounded like a local network problem :( Best of luck John Kane Kingston ON Canada -Original Message- From

[R] Luis Miguel Delgado Gomez/BBK está ausente de la oficina.

Estaré ausente de la oficina desde el 14/09/2012 y no volveré hasta el 01/10/2012. Responderé a su mensaje cuando regrese. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http

Re: [R] Printing localized pdf file from Sweave snippets

On 14/09/2012 7:07 AM, Petar Milin wrote: Hello! I am struggling for quite some time with proper printing of local characters in pdf plot, via Sweave snippets in Rnw file. When I am working directly within R, all is fine and I can get local character properly, like: pdf('figs/fig-relativeEntropy

Re: [R] Auomatic Download of climate netcdf4 files from the Climate Explorer Website

I'm not sure about R code, but wget (http://www.gnu.org/software/wget/) should work. Here are some examples: http://www.editcorp.com/Personal/Lars_Appel/wget/v1/wget_7.html Cheers! Tom On Thu, Sep 13, 2012 at 1:37 PM, ucakmde wrote: > Dear R-helpers, > > I am trying to download some netcdf4 fi

[R] Printing localized pdf file from Sweave snippets

Hello! I am struggling for quite some time with proper printing of local characters in pdf plot, via Sweave snippets in Rnw file. When I am working directly within R, all is fine and I can get local character properly, like: pdf('figs/fig-relativeEntropy0.pdf', h=6, w=6, encoding='CP1250') matplot

Re: [R] How to specify minimum and maximum x-axis value in logi.hist.plot?

plot(..., xlim = c(a,b)) to limit the plot to [a, b] Cheers, M On Friday, September 14, 2012, eddie smith wrote: > Hi guys, > > How could I specify minimum and maximum x-axis values in logi.hist.plot? > My code is something like this: > > plot(mydata$Temperature,mydata$Mortality, > ,xlab="Temper

Re: [R] compare different data-formats

Hello, Try the following. x <- c("14.Aug.2012-16:32", "3.Sep.2012-16:50") y <- c("2012.08.14", "2012.09.3") as.Date(x, format = "%d.%b.%Y-%H:%M") == as.Date(y, format = "%Y.%m.%d") (Or use %in% instead of ==) But note that the format returned by as.Date uses '-' as separator: as.Date(x, forma

[R] compare different data-formats

Hi, I have two data-frames which I want to match by a date-variable. The problem now is, that the date-variable has a different format in this two data-frames. So simply matching by this variable wouldn't work. In the one data-frame the date-variable contains strings that look like this: 14.Au

[R] How to specify minimum and maximum x-axis value in logi.hist.plot?

Hi guys, How could I specify minimum and maximum x-axis values in logi.hist.plot? My code is something like this: plot(mydata$Temperature,mydata$Mortality, ,xlab="Temperature",ylab="Probability of mortality") curve(predict(temp.glm,data.frame(Temperature=x),type="resp"),add=TRUE, col="red") point

Re: [R] Cannot write a dataframe to xls or csv Windows 7

Thank you so much, Yes I need to look up how to make a reproducible example, William I will try your advice, I believe this will be my salvation here, once I get my computer. Pancho On Sep 13, 2012, at 23:59, "William Dunlap" wrote: > >> -Original Message- >> From: r-help-boun...@r-pr

Re: [R] when to use "I", "as is" caret

On 14.09.2012 09:41, agent dunham wrote: Dear community, I've check it while working, but just to reassure myself. Let's say we have 2 models: model1 <- lm(vdep ~ log(v1) + v2 + v3 + I(v4^2) , data = mydata) model2 <- lm(vdep ~ log(v1) + v2 + v3 + v4^2, data = mydata) So in model1 you re

Re: [R] Namespaces without packages?

On 13.09.2012 23:47, R. Michael Weylandt wrote: On Thu, Sep 13, 2012 at 6:44 PM, Ray Griner wrote: Dear R-help list - Here's my problem. I have some programs I want to share with other users in the department. I currently tell users to use source("/path/to/myfile.R") to include the progr

[R] when to use "I", "as is" caret

Dear community, I've check it while working, but just to reassure myself. Let's say we have 2 models: model1 <- lm(vdep ~ log(v1) + v2 + v3 + I(v4^2) , data = mydata) model2 <- lm(vdep ~ log(v1) + v2 + v3 + v4^2, data = mydata) So in model1 you really square v4; and in model2, v4*^2 *does