[R] Plotting numeric values against non numeric items

Hi i want do a line graph. My y axis contains numeric values. My x axis contains non numeric statements. This is what i want the graph to look like. When i try to plot this graph on R it comes up with the following error message: "Error in plot.window(...) : need finite 'xlim' values In additi

Re: [R] lattice, add text to xyplot

Thank you. It works. Ivan Ivan Gregoretti, PhD National Institute of Diabetes and Digestive and Kidney Diseases National Institutes of Health 5 Memorial Dr, Building 5, Room 205. Bethesda, MD 20892. USA. On Fri, Jan 8, 2010 at 8:13 PM, David Winsemius wrote: > > On Jan 8, 2010, at 8:10 PM, Ja

Re: [R] Variable Combinations in Regression

On 01/09/2010 07:49 AM, Richardson, Patrick wrote: Let's say I have 8 variables and I want to generate all combinations of those variables (In pairs, threes fours, etc) to run in multiple linear regression. Is there a built-in function to do that in R? Or at a minimum, how could I take thos

Re: [R] lattice, add text to xyplot

On Jan 8, 2010, at 8:10 PM, Jason Morgan wrote: On 2010.01.08 19:44:39, Ivan Gregoretti wrote: Hello listers, Does anybody know how to add text to an xyplot without whipping out the existing curve? That's all. For instance, Lets say you generate a graph like this A <- data.frame(x = rnorm(

Re: [R] lattice, add text to xyplot

On 2010.01.08 19:44:39, Ivan Gregoretti wrote: > Hello listers, > > Does anybody know how to add text to an xyplot without whipping out > the existing curve? > That's all. > > For instance, > > Lets say you generate a graph like this > > A <- data.frame(x = rnorm(100), y = rnorm(100)) > xyplot(

Re: [R] how to organize a lot of R source files

library("R.utils"); sourceDirectory("myRFiles/", modifiedOnly=TRUE); See ?sourceDirectory (regardless what the Rd help say, any '...' argument is passed to sourceTo()). /Henrik On Fri, Jan 8, 2010 at 7:38 AM, Hao Cen wrote: > Hi, > > I wonder what is a better way to organize a lot of R source f

Re: [R] Arguments of a function

On 01/09/2010 05:15 AM, Lisa wrote: Dear all, I have a question about how to set arguments in my own function. For example, I have a function that looks like this: my.f<- function(a = x1, b = x2) { x1 = equation 1 x2 = equation 2 x3 = equation 3 y = a + b } x1, x2, and x3 are t

[R] lattice, add text to xyplot

Hello listers, Does anybody know how to add text to an xyplot without whipping out the existing curve? That's all. For instance, Lets say you generate a graph like this A <- data.frame(x = rnorm(100), y = rnorm(100)) xyplot(y ~ x, data = A) How would you add 'Hello world'? I tried 6.02E23 di

Re: [R] Online R documentation

On Fri, Jan 8, 2010 at 10:06 PM, Jim Lemon wrote: > It's not the first time I've said it, but Jonathan Baron's search engine has > always provided answers when my local R help can't. The only change I would > make is to default to searching R functions only. > Another interface to this search engi

Re: [R] how to organize a lot of R source files

Hi Jeff, Your request makes a lot of sense. I often modify files in the packages I maintain, typically by loading the package, then working on a copy of the function, continually "sourcing" the new code until it works correctly, and then checking and building the package. Apart from the offici

[R] Functions for QUAIDS and nonlinear SUR?

Hi, I would like to estimate a quadratic almost ideal demand system in R which is estimated usually by nonlinear seemingly unrelated regression. But there is no such function in R yet but it is readily available in STATA (nlsur), see B. Poi (2008): Demand-system estimation: Update, Stata Journa

Re: [R] strange behavior of R

On Jan 8, 2010, at 5:57 PM, Fahim wrote: Hi I observed an interesting behavior of R. Can you find where is the bug, or it is not a bug but made deliberately. - Hide quoted text - arr = c();#defined the empty array a= c("x1", "x2"); b = c("y1", "y2"); arr = rbind(a

Re: [R] strange behavior of R

You need to reread the help for [, specifically the drop argument. ?"[" Sarah On Fri, Jan 8, 2010 at 5:57 PM, Fahim wrote: > > Hi > I observed an interesting behavior of R. Can you find where is the bug, or > it is not a bug but made deliberately. > - Hide quoted text - > > >> arr = c();      

[R] strange behavior of R

Hi I observed an interesting behavior of R. Can you find where is the bug, or it is not a bug but made deliberately. - Hide quoted text - > arr = c();#defined the empty array > a= c("x1", "x2"); > b = c("y1", "y2"); > arr = rbind(arr,a);#row bind

Re: [R] Singularity problem

On Jan 8, 2010, at 4:50 PM, Moohwan Kim wrote: Dear R family I have a problem with invertibility in a matrix. m1 <- ar(x, method='mle') Error in solve.default(res$hessian * length(x)) : Lapack routine dgesv: system is exactly singular How could I avoid this problem? Take out the colline

Re: [R] How to Merge based on Rows

Try this. (The second line removes the suffixes in the column names.) > out <- merge(x1, x2, by = 0, all = TRUE)[-1] > names(out) <- sub("\\..*", "", names(out)) > out Apples Oranges Pears Apples Oranges Pears 1 5 6 7 5 3 9 2 5 3 4 3 2

Re: [R] Variable Combinations in Regression

On Jan 8, 2010, at 3:26 PM, Richardson, Patrick wrote: Let's say I have 8 variables and I want to generate all combinations of those variables (In pairs, threes fours, etc) to run in multiple linear regression. Is there a built-in function to do that in R? The formula syntax allows that.

Re: [R] solving cubic/quartic equations non-iteratively -- comparisons

Hi, I'm responding to a post about finding roots of a cubic or quartic equation non-iteratively. One obviously could create functions using the explicit algebraic solutions. One post on the subject noted that the square-roots in those solutions also require iteration, and one post claimed itera

Re: [R] Online R documentation

On 01/09/2010 12:41 AM, Jonathan Baron wrote: ... Such a website exists: http://finzi.psych.upenn.edu Right near the top is a set of links to (almost) all package documentation. Duncan Murdoch helped here by including an option to build static pages in the R source. There is also a search eng

Re: [R] How to Merge based on Rows

Is this what you want: > x1$names <- rownames(x1) > x1 Apples Oranges Pears names A 5 6 7 A B 5 3 4 B C 8 910 C D 11 1314 D E 15 3 8 E F 1 4 5 F > x2$names <- rownames(x2) > x2 Apples

Re: [R] A better way to Rank Data that considers "ties"

On 08-Jan-10 21:09:08, MRKidd wrote: > This will start off sounding very easy, but I think it will be > very complicated. > > Let's say that I have a matrix, which shows the number of apples > that each person in a group has. > > OriginalMatrix<-matrix(c(2,3,5,4,6),nrow=5,ncol=1,byrow=T, > dimn

[R] Singularity problem

Dear R family I have a problem with invertibility in a matrix. m1 <- ar(x, method='mle') Error in solve.default(res$hessian * length(x)) : Lapack routine dgesv: system is exactly singular How could I avoid this problem? Best Moohwan __ R-help@r-pr

Re: [R] A better way to Rank Data that considers "ties"

Type ?rank in the prompt and look at the ties.method argument. Best, Daniel - cuncta stricte discussurus - -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of MRKidd Sent: Friday, January

[R] A better way to Rank Data that considers "ties"

This will start off sounding very easy, but I think it will be very complicated. Let's say that I have a matrix, which shows the number of apples that each person in a group has. OriginalMatrix<-matrix(c(2,3,5,4,6),nrow=5,ncol=1,byrow=T,dimnames=list(c("Bob","Frank","Joe","Jim","David"),c("Appl

[R] How to Merge based on Rows

Let's say that I have a bunch of matrices. They look like this (pardon using fruit for examples, my actual data tables are far too enormous): Matrix1 Apples Oranges Pears A 5 6 7 B 5 3 4 C 8 9 10 D 11

Re: [R] how to get perfect fit of lm if response is constant

Just to clarify this point: I don't think the problem is that y is "perfectly fittable", but that it is constant. Since the variance of a constant is zero, there is no variance to explain. -Ista On Fri, Jan 8, 2010 at 2:32 PM, Jan-Henrik Pötter wrote: > Thanks for the answer. > The situation is

Re: [R] how to get perfect fit of lm if response is constant

Thanks for the answer. The situation is that I don't know anything of y a priori. Of course I then would not do a regression on constant y's, but isn't it a problem of stability of the algorithm, if I get an adj RSquare of 0.6788 for a least square fit on this type of data? I think lm should giv

Re: [R] Variable Combinations in Regression

?expand.grid On Fri, Jan 8, 2010 at 3:26 PM, Richardson, Patrick wrote: > Let's say I have 8 variables and I want to generate all combinations of those > variables (In pairs, threes fours, etc) to run in multiple linear regression. > Is there a built-in function to do that in R? > > Or at a min

Re: [R] Arguments of a function

That's what I want. Thank you so much. Lisa Henrique Dallazuanna wrote: > > Try this: > > my.f <- function(a, b) { > x1 <- 2 * 3 > x2 <- 3 / 6 > x3 <- 4 * 4 / 5 - sqrt(2) > y <- get(deparse(substitute(a))) + get(deparse(substitute(b))) > return(y) > } > > my.f(x

Re: [R] function by: order within subsets

Try ave: transform(df, v = ave(v, f, FUN = cumsum)) On Fri, Jan 8, 2010 at 1:10 PM, Daniel Murphy wrote: > When the 'by' function forms subsets, are the rows in the same order as they > are in the original data frame? > > For example, I want to use 'by' to calculate cumulative sums of a value '

[R] Variable Combinations in Regression

Let's say I have 8 variables and I want to generate all combinations of those variables (In pairs, threes fours, etc) to run in multiple linear regression. Is there a built-in function to do that in R? Or at a minimum, how could I take those variables and generate all possible combinations. Th

Re: [R] time series analysis for a time series without a regular frequency

The zoo package supports irregularly spaced time series and if your create a zoo object z from your data then tt <- as.ts(z) will give you a ts object, tt. Since a ts object must be regularly spaced this will add NAs to ensure that it is. On Fri, Jan 8, 2010 at 3:05 PM, Erin Hestir wrote: > Hell

Re: [R] Online R documentation

Karl Ove Hufthammer wrote: > > On Fri, 8 Jan 2010 10:03:31 -0500 Jonathan Baron > wrote: >> > In case anybody is looking for ideas in how to improve the above >> > site, inclusion of rendered example graphs, similar to the ones at >> > "http://www.metaresearch.de/exlib/";, would be nice. >>

Re: [R] Identifying outliers in non-normally distributed data

Thank you Kevin. I'm looking forward to trying your function when I get back to the office. Jerry Floren Minnesota Department of Agriculture Kevin Wright-5 wrote: > > Here is a simple function I use. It uses Median +/- 5.2 * MAD. If I > recall, this flags about 1/2000 of values from a true

[R] time series analysis for a time series without a regular frequency

Hello, I am trying to conduct a time series analysis on historic hydrologic data, but I cannot coerce it into class ts because it does not have regular sampling intervals (some years have 20 samples, other have 8). Specifically I am trying to perform a CUSUM or or other step change detection, but

Re: [R] Using outer with function predict

Try this: outer(x, y, FUN = function(x, y)predict(lm.1, data.frame(x, y))) On Fri, Jan 8, 2010 at 5:49 PM, Etienne Stockhausen wrote: > Hey everybody, > > I have a problem with the combination of the commands outer() and predict(). > I want to visualize the solutions of a regression modell in

[R] Using outer with function predict

Hey everybody, I have a problem with the combination of the commands outer() and predict(). I want to visualize the solutions of a regression modell in a matrix. Therefore I want to use the command predict for a linear modell as the function inside the command outer. I've made a small example:

Re: [R] plyr: issue with column names when converting one element list to dataframe

Hi Mark, It'll be fixed in the next version of plyr. If you want to fix it yourself, inspect the source of list_to_dataframe and change the first data.frame to as.data.frame. Hadey On Wed, Jan 6, 2010 at 8:53 AM, Mark Heckmann wrote: > Hadley, > > thanks for the quick reply: > >> dput(l) > lis

Re: [R] function by: order within subsets

Try this: transform(df, v = unlist(with(df, tapply(v, f, cumsum On Fri, Jan 8, 2010 at 4:10 PM, Daniel Murphy wrote: > When the 'by' function forms subsets, are the rows in the same order as they > are in the original data frame? > > For example, I want to use 'by' to calculate cumulative su

Re: [R] Arguments of a function

Try this: my.f <- function(a, b) { x1 <- 2 * 3 x2 <- 3 / 6 x3 <- 4 * 4 / 5 - sqrt(2) y <- get(deparse(substitute(a))) + get(deparse(substitute(b))) return(y) } my.f(x1, x2) On Fri, Jan 8, 2010 at 4:15 PM, Lisa wrote: > > Dear all, > > I have a question about

[R] Panel order in lattice with xyplot

Dear all, I am a new user of R ;-) (I started three months ago) and I am going very slow…. I am using lattice and am trying to draw a multipanel figure. The problems are that I am not able to find out how to: 1. Set the order of the panels. 2. Set the order of the x axes. :rules: The codes I

[R] postscript, greek lellters

Dear useRs, How can I, writting the correct greek letter using postscrip or pdf function. In my figures appears only the first letter (a of alpha, n of nu) when include the graphs in my .tex doxument. I am using title( expression(bar(T)(paste(-x,";",alpha))-G(paste(x,";",alpha,",",J title

[R] can´t start help in Win7

Just installed R 2.10.1 in win7 and when I try to run help.start() firefox will pop up but display an error saying it could not find the url http://127.0.0.1:16396/doc/html/index.html and that permission is denied. Has anyone seen this? How can I fix it? Thanks daniel ___

Re: [R] A question about the ff package

Thank you Jens. I will try your solutions and post the solutions/problems I have. Cheers Peter 2010/1/7 Jens Oehlschlägel > Peter, > > ff objects are not allowed as subscripts to ff objects. You can take > several routes > > 1) use bit objects instead of logical or ff logical. This is fast and t

[R] function by: order within subsets

When the 'by' function forms subsets, are the rows in the same order as they are in the original data frame? For example, I want to use 'by' to calculate cumulative sums of a value 'v' by date 'd' for different levels of a factor 'f': > df<-data.frame(f=c("A","A","B"),d=as.Date(c("2010-1-1","2010

Re: [R] Newbie question on precision

On 1/8/2010 1:29 PM, Magnus Torfason wrote: Paul Evans wrote: How can I get R to change the default precision value? For example: x=0.9 1-x [1] 0 Is there a way that I can get a non-zero value using some parameter, or some package? many thanks. The 'gmp' package allows calcu

[R] Arguments of a function

Dear all, I have a question about how to set arguments in my own function. For example, I have a function that looks like this: my.f <- function(a = x1, b = x2) { x1 = equation 1 x2 = equation 2 x3 = equation 3 y = a + b } x1, x2, and x3 are temporary variables (intermediate resu

Re: [R] Strange behaviour of as.integer()

See below. >> From: r-help-boun...@r-project.org >> [mailto:r-help-boun...@r-project.org] On Behalf Of Ulrich Keller >> Sent: Thursday, January 07, 2010 4:32 AM >> To: r-help@r-project.org >> Subject: [R] Strange behaviour of as.integer() >> >> I have encountered a strange behaviour of as.intege

Re: [R] how to get perfect fit of lm if response is constant

You need to review the assumptions of linear models: y is assumed to be the realization of a random variable, not a constant (or, more precisely: there are assumed to be deviations that are N(0, sigma^2). If you 'know' that y is a constant, then you have two options: 1. don't do the regression b

Re: [R] Newbie question on precision

Paul Evans wrote: How can I get R to change the default precision value? For example: x=0.9 1-x [1] 0 Is there a way that I can get a non-zero value using some parameter, or some package? many thanks. The 'gmp' package allows calculation with arbitrary precision rationals (

Re: [R] Newbie question on precision

FAQ 7.31 The precision of a floating point number is about 16 digits and your 'x' is at that limit. If you reduce it, you will see a result: > x=0.9 > 1-x [1] 0 > print(1-x, digits=20) [1] 0 > x=0.99 > print(1-x, digits=20) [1] 0.00999200722162641 > On F

Re: [R] Newbie question on precision

On 08-Jan-10 16:56:25, Paul Evans wrote: > Hi all, > How can I get R to change the default precision value? For example: >> x=0.9 >> 1-x > [1] 0 > > Is there a way that I can get a non-zero value using some parameter, > or some package? > many thanks. The problem here is that, as

Re: [R] Directory operations

?list.files ?file.info ?setwd You can get a list of all the files in a directory (list.files) and then do a file.info to determine which ones are the directories you want to search. A list.files on that directory will give you the list of file names that you can then process. On Fri, Jan 8, 20

[R] Directory operations

Dear all, I have this directory structure : Dir1 Dir2 Dir3 Dir4 . A.xml D.xmlG.xml B.xml E.xml H.xml C.xml F.xml I.xml Within each of these directories (Dir1, Dir2 etc) there are a num of xml files (A.xml, B.xml etc).

Re: [R] how to flatten a list to the same level?

Try something about like this: split(unlist(l), rep(1:length(idx <- rapply(l, length)), idx)) On Fri, Jan 8, 2010 at 1:35 PM, Mark Heckmann wrote: > I have a nested list l like: > > l <- list(A=c(1,2,3), B=c("a", "b")) > l <- list(l,l, list(l,l)) > > I want the list to be unlisted, but not on th

[R] Newbie question on precision

Hi all, How can I get R to change the default precision value? For example: > x=0.9 > 1-x [1] 0 > Is there a way that I can get a non-zero value using some parameter, or some package? many thanks. [[alternative HTML version deleted]] __

[R] how to get perfect fit of lm if response is constant

Hello. Consider the response-variable of data.frame df is constant, so analytically perfect fit of a linear model is expected. Fitting a regression line using lm result in residuals, slope and std.errors not exactly zero, which is acceptable in some way, but errorneous. But if you use summary.lm i

Re: [R] svm

Hi Steve, Thank you very much for your reply. Your code is more readable and obvious than mine… Could you please help me in these questions?: 1) “Formula” is an alternative to “y” parameter in SVM. is it correct? 2) I forgot to remove the “class label” from the dataset besides I gave th

Re: [R] Ridge regression

Thanks a lot! Eleni On Fri, Jan 8, 2010 at 6:35 PM, Ravi Varadhan wrote: > Yes, you need to have the intercept term when you predict model-based > response. > > > > This is what you need: > > > > * ridge.test=lm.ridge(tey_values~tedata, lambda)* > > * * > > * yest <- drop(cbind(1, tedata)

Re: [R] February 2010***New R Courses*** by XLSolutions Corp at 9 USA Cities: San Francisco, New York, Washington DC, Houston, Boston, Las Vegas, Seattle, etc

Greetings Milton, Our R-PLUS has features of S-PLUS and we use it to teach and those with laptops without S-PLUS get R-PLUS. Get a free trial of R-PLUS at: www.xlsolutions-corp.com/order Regards - Sue > Original Message > Subject: Re: [R] February 2010***New R Courses*** by X

Re: [R] Ridge regression

Yes, you need to have the intercept term when you predict model-based response. This is what you need: ridge.test=lm.ridge(tey_values~tedata, lambda) yest <- drop(cbind(1, tedata) %*% coef(ridge.test)) Hope this helps, Ravi. --

[R] inclusion of "intercept=FALSE" in regsubsets() in leaps package produces an error

Hello, I have encountered a problem which may be arising from details of my data and or the statistics I am trying to do, or may be arising due to the way leaps works internally. Unfortunately, I am not yet savvy enough to tell why. I can say that this statement works (or at least works to the

Re: [R] Ridge regression

I am sorry, I just pressed the "send" button by accident before completing my e-mail. The yest are the estimated values according to the ridge model. Is the way that I calculate them correct? Or should I cut the *+coef(ridge.test)[1] *term? Thanks a lot! Eleni On Fri, Jan 8, 2010 at 6:16 PM, Elen

Re: [R] Ridge regression

Hello again and Happy 2010! I was looking back at this email because I need to do some additional processing now. I was thinking that if I take the coef(ans) I get n+1 coefficients. I guess that the coef(ans)[1] is the constant term... Do I need to add it when I calculate the estimated value for th

[R] how to organize a lot of R source files

Hi, I wonder what is a better way to organize a lot of R source files. I have a lot of utility functions written and store them in several source files (e.g util1.R, util2.R,..utilN.R). I also have a master file in which the source command is used to load all the util.R files. When I need to use t

Re: [R] Online R documentation

On Fri, 8 Jan 2010 10:03:31 -0500 Jonathan Baron wrote: > > In case anybody is looking for ideas in how to improve the above > > site, inclusion of rendered example graphs, similar to the ones at > > "http://www.metaresearch.de/exlib/";, would be nice. > > Why should I bother when the site exi

[R] how to flatten a list to the same level?

I have a nested list l like: l <- list(A=c(1,2,3), B=c("a", "b")) l <- list(l,l, list(l,l)) I want the list to be unlisted, but not on the lowest level of each "branch". I want the lowest level of each list branch to remain as it is. So unlist or unlist(rec=F) do not work here as the level of

Re: [R] Online R documentation

On 01/08/10 14:56, Karl Ove Hufthammer wrote: > On Fri, 8 Jan 2010 08:41:49 -0500 Jonathan Baron > wrote: > > > Many people seem unhappy with the new documentation server because you > > > need to have R running to access it, and it's not immediately obvious > > > how to bookmark references so th

Re: [R] Creating Table from Boxplot

On Jan 8, 2010, at 9:08 AM, Lorenzo Isella wrote: Dear All, I know how to use the boxplot() function to generate a boxplot, but I would like to (automatically) extract 5 numbers (median and the 4 quantiles) for each column and possibly save them into a convenient format. Can anyone point me

Re: [R] fast lm se?

naive questions--- why is this not part of the standard R distribution? fast regression is *not* an obscure need. why would an se() function not be part of the standard R distribution, given that coef() can be? naive suggestion to add to the ?lm text "The underlying low level functions, 'l

Re: [R] fast lm se?

On 8 January 2010 at 08:35, ivo welch wrote: | dear R experts---I am using the coef() function to pick off the coefficients | from an lm() object. alas, I also need the standard errors and I need them | fast. I know I can do a "summary()" on the object and pick them off this | way, but this comp

[R] Creating Table from Boxplot

Dear All, I know how to use the boxplot() function to generate a boxplot, but I would like to (automatically) extract 5 numbers (median and the 4 quantiles) for each column and possibly save them into a convenient format. Can anyone point me to the right direction? I am sure there must be an auto

Re: [R] Anybody can suggest a better method to build a package while ignoring some functions

At 01:18 06/01/2010, rusers.sh wrote: Hi, Say i have three functions in a new package, a,b and c. I only want the one function "a" to be exported for use. "b" and "c" are not very stable. If i specify to export all the three functions in the NAMESPACE file (export(a,b,c)), no errors appeared

Re: [R] Online R documentation

> http://pledgie.com/campaigns/7707 - here you can donate as much or as > little as you like to support this project.  You won't pay until the > total amount has been pledged. I misread the documentation - do you actually pay right away. If I don't reach the $1000, I'll pass on the money to a goo

Re: [R] Online R documentation

>> Many people seem unhappy with the new documentation server because you >> need to have R running to access it, and it's not immediately obvious >> how to bookmark references so they work long-term. One solution to >> this problem is to have a globally available website that provides >> access to

Re: [R] Online R documentation

On Fri, 8 Jan 2010 08:41:49 -0500 Jonathan Baron wrote: > > Many people seem unhappy with the new documentation server because you > > need to have R running to access it, and it's not immediately obvious > > how to bookmark references so they work long-term. One solution to > > this problem is t

Re: [R] fast lm se?

See ?display in the arm package. On Fri, Jan 8, 2010 at 8:35 AM, ivo welch wrote: > dear R experts---I am using the coef() function to pick off the coefficients > from an lm() object.  alas, I also need the standard errors and I need them > fast.  I know I can do a "summary()" on the object and p

Re: [R] Fitting chi-squared distribution

On Fri, 8 Jan 2010 14:39:34 +0100 Trafim Vanishek wrote: > I would like to ask if there is a simple was in R to fit the chi-squared > distribution to the empirical data? Sure. Use the 'fitdistr' function in the 'MASS' package. -- Karl Ove Hufthammer ___

Re: [R] fast lm se?

From: ivo welch > > dear R experts---I am using the coef() function to pick off > the coefficients > from an lm() object. alas, I also need the standard errors > and I need them > fast. I know I can do a "summary()" on the object and pick > them off this > way, but this computes other stuff I

Re: [R] Online R documentation

On 01/08/10 07:15, Hadley Wickham wrote: > Dear list, > > Many people seem unhappy with the new documentation server because you > need to have R running to access it, and it's not immediately obvious > how to bookmark references so they work long-term. One solution to > this problem is to have a

Re: [R] fast lm se?

You can get SE with this: coef(summary(your_model))[,'Std. Error'] On Fri, Jan 8, 2010 at 11:35 AM, ivo welch wrote: > dear R experts---I am using the coef() function to pick off the coefficients > from an lm() object.  alas, I also need the standard errors and I need them > fast.  I know I ca

[R] Fitting chi-squared distribution

Dear all, I would like to ask if there is a simple was in R to fit the chi-squared distribution to the empirical data? Thanks a lot! [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinf

[R] fast lm se?

dear R experts---I am using the coef() function to pick off the coefficients from an lm() object. alas, I also need the standard errors and I need them fast. I know I can do a "summary()" on the object and pick them off this way, but this computes other stuff I do not need. Or, I can compute (X'

[R] Online R documentation

Dear list, Many people seem unhappy with the new documentation server because you need to have R running to access it, and it's not immediately obvious how to bookmark references so they work long-term. One solution to this problem is to have a globally available website that provides access to al

Re: [R] Building static HTML help pages in R 2.10.x on Windows

> I see. Well, I never lacked any of these capabilities... Please understand > that people who use R to do their work may have different objectives than the > developers - and they form the majority of R users. Well how about a documentation system that could look back over your history and noti

[R] Standard errors from a randomization test?

Hello- Is it possible to estimate standard errors for a multiple regression model using a randomization test approach? I have seen a lot on using the procedure to get a test statistic, but nothing that talks about getting actual standard errors. Is this possible? How might I do this in R? Thank

Re: [R] Zeilenweiser Plot einer Matrix

On 08.01.2010 12:18, Oliver Gondring wrote: Liebe Liste, bin noch absoluter R-Anfänger und trotz fleißigen Lesens der Dokumentation noch nicht zur Lösung des folgenden Problems vorgedrungen. Die Werte einer 2D-Matrix sollen in einem einzigen 2D-Plot dargestellt werden, in dem jeweils für die

Re: [R] Building static HTML help pages in R 2.10.x on Windows

Hi, Duncan, >>If that works, writing up instructions would be a useful contribution. It was always a bit of a mess, and after 15 minutes this morning I had to go. So I hoped someone else would jump the wagon. Dieter -- View this message in context: http://n4.nabble.com/Building-s

Re: [R] Building static HTML help pages in R 2.10.x on Windows

Dieter Menne wrote: Duncan Murdoch wrote: What's so hard about leaving an R session running, and using bookmarks as Dieter described? It pollutes my space, and I am a Window-closing maniac, so it won't survive the next attack.

Re: [R] Building static HTML help pages in R 2.10.x on Windows

Michal Kulich wrote: On 7.1.2010 20:22, Duncan Murdoch wrote: A more useful example than ls() would be methods(). I think it would be nice to have a list of methods included in the man page for a generic function, and links to their pages if they have their own man pages. You might want t

[R] Zeilenweiser Plot einer Matrix

Liebe Liste, bin noch absoluter R-Anfänger und trotz fleißigen Lesens der Dokumentation noch nicht zur Lösung des folgenden Problems vorgedrungen. Die Werte einer 2D-Matrix sollen in einem einzigen 2D-Plot dargestellt werden, in dem jeweils für die Werte einer Zeile ein Graph aus mit Linien verb

Re: [R] Print data frame as list including row/column name

Try this: writeLines(do.call(paste, c(as.data.frame.table(as.matrix(x)), sep = ";"))) On Fri, Jan 8, 2010 at 12:03 AM, sugimoto wrote: > > Hi all, > > I have the following problem: > I have a data frame (actually it is a prop.table) which I want to print as a > list, e.g.: >          C1  C2  C3

[R] Bug: more information on a crash

Hi the list, In the package KmL (new version, not release yet), the main function seems to work correctly but once in a while, R crash (full crash, anything link with R is closed and windows ask if it can send a crash report). More precisely, when I run it in a loop on 1000 data sets, the cra

Re: [R] generate XML

On 01/07/2010 11:36 AM, robert-mcfad...@o2.pl wrote: > > > > Dnia 7 stycznia 2010 11:30 S Devriese napisał(a): >> you might try >> >> # open file connection >> sink("item1.xml") >> # print object >> my.matrix >> # close file connection >> sink() > > Unfortunately, It does not code letter appro

Re: [R] Building static HTML help pages in R 2.10.x on Windows

Duncan Murdoch wrote: > > What's so hard about leaving an R session running, and using bookmarks > as Dieter described? > It pollutes my space, and I am a Window-closing maniac, so it won't survive the next attack.