Re: [R] RWinEdt

2011-06-29 Thread Anupam
I used R with WinEdt some years ago (I think it was on 98, may be even XP), and then moved on to other editors --- (X)Emacs, Tinn-R and Rcommander seem to do the job reasonably well with differing functionality. I had sent several requests to the WinEdt development team that I may even upgrade to a

Re: [R] Sum Question

2011-06-29 Thread Rolf Turner
The simplest way is: xxx <- with(clyde,tapply(CONTTIME,SCRNO,sum)) You could also do: xxx <- by(clyde,clyde[["SCRNO"]],function(x){sum(x[["CONTTIME"]])}) but this gives somewhat messy output; the aforesaid output may be convenient for some purposes, not for others. cheers, Rolf

Re: [R] Upgrading R in Ubuntu

2011-06-29 Thread Jeff Newmiller
This is Googlable. You need to add the CRAN repository to your APT sources file. --- Jeff Newmiller The . . Go Live... DCN: Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteri

Re: [R] Italicized greek symbols in PDF plots

2011-06-29 Thread Prof Brian Ripley
On Wed, 29 Jun 2011, Sam Albers wrote: I know that this has been asked before in other variations but I just can't seem to figure out my particular application from previous posts. My apologies if I have missed the answer to this question somewhere in the archives. I have indeed looked. I am ru

Re: [R] DROP OBSEVATION IN A GROUP

2011-06-29 Thread Peter Maclean
I tried this but did not work: z0<- by(z, z[,"n"], function(x) subset(x, sum(n==0)>2))  Peter Maclean Department of Economics UDSM - Original Message From: Duncan Murdoch To: Peter Maclean Cc: r-help@r-project.org Sent: Wed, June 29, 2011 3:33:25 PM Subject: Re: [R] DROP OBSEVATION I

[R] Upgrading R in Ubuntu

2011-06-29 Thread Ashim Kapoor
Dear All, I wanted to install the reshape package which in turn requires the plyr. When I tried to install plyr it says it needs ERROR: this R is version 2.10.1, package 'plyr' requires R >= 2.11.0 My question is how do I upgrade my R ? I have Ubuntu 10.04.2 LTS. Many thanks for your help.

Re: [R] Saving fExtremes estimates and k-block return level with confidence intervals.

2011-06-29 Thread Peter Maclean
I am estimating a large model by groups. How do you save the results and returns the associated quantiles? For this example I need a data frame n    xi    mubeta 1   0.1033614  2.5389580 0.9092611 2   0.3401922  0.5192882 1.5290615 3   0.5130798  0.5668308 1.2105666 I also want to

[R] Numerical integration

2011-06-29 Thread nany23
Hello! I know that probably my question is rather simple but I' m a very beginner R-user. I have to numerically integrate the product of two function A(x) and B(x). The integretion limits are [X*; +inf] Function A(x) is a pdf function while B(x)=e*x is a linear function whose value is equal to

Re: [R] Executing a script "hand-made" and time

2011-06-29 Thread Trying To learn again
Hi all, My file that worked with a thin matrix (with few rows and colums) finally made an error but I can´t comprehed why? valor ausente donde TRUE/FALSE es necesario (absent value TRUE/FALSE is necessary?) Error en if (data[i, j] - last1[1, j] != 0) data2[i, j] = 0 else { : You recommed to p

Re: [R] Derivative of a function

2011-06-29 Thread S Ellison
If you just want the value of the derivative at a particular point, would numerical derivatives suffice? If so, try (for example) the numDeriv package. S From: r-help-boun...@r-project.org [r-help-boun...@r-project.org] On Behalf Of Lisa [lisa...@gmail.co

Re: [R] optimization in for loop

2011-06-29 Thread siriustar
Thankyou very much. I think "try" works for me. I am learning it . Sirius -- View this message in context: http://r.789695.n4.nabble.com/optimization-in-for-loop-tp3633638p3634100.html Sent from the R help mailing list archive at Nabble.com. __ R-hel

[R] Sum Question

2011-06-29 Thread Edgar Alminar
Hello, I have the following dataset (this is a piece of a much larger set): RID SCRNO VISCODE RECNO CONTTIME 2318 HBA0190012 bl 15 2418 HBA0190012 bl 35 2818 HBA0190012 bl 55 2918 HBA0190012 bl 25 321

[R] Fw: volcano plot.r

2011-06-29 Thread Ungku Akashah
- Forwarded Message - From: Ungku Akashah To: "r-help@r-project.org" Sent: Thursday, June 30, 2011 9:14 AM Subject: volcano plot.r Hello. My name is Akashah. i work at metabolic laboratory. From my study, i found that volcano plot can help a lot in my section.  i already studied abo

Re: [R] Derivative of a function

2011-06-29 Thread Gabor Grothendieck
On Wed, Jun 29, 2011 at 4:35 PM, Lisa wrote: > Yes. I need to do implicit differentiation. After rearrangement, I got > > (x2 – x1) * b = log(1 / y - 1) > > Take derivative of both sides with respect to y, I have > > (x2 – x1) * b’[y] = - 1/y(1-y) > > Since both (x2 – x1) and b’[y] are vectors, I

[R] volcano plot.r

2011-06-29 Thread Ungku Akashah
Hello. My name is Akashah. i work at metabolic laboratory. From my study, i found that volcano plot can help a lot in my section.  i already studied about the volcano plot and get the coding to run in R software, unfortunately, there is may be something wrong with the coding. This is because  no

Re: [R] Fwd: help

2011-06-29 Thread Dennis Murphy
Hi: It's not at all clear to me what you want to do. Is each component of your list a data frame with the same structure? Are you trying to combine them into one data frame? If so, then try mydata <- do.call(rbind, c) where c is the name of the list. (Not a good choice of name, by the way - c()

[R] Italicized greek symbols in PDF plots

2011-06-29 Thread Sam Albers
I know that this has been asked before in other variations but I just can't seem to figure out my particular application from previous posts. My apologies if I have missed the answer to this question somewhere in the archives. I have indeed looked. I am running Ubuntu 11.04, with R 2.12.1 and ESS+

Re: [R] R package Forecast

2011-06-29 Thread Dennis Murphy
Hi: Your object b is a 5 x 12 matrix. The error message says that ets() is expecting a univariate time series as its first argument. Try something like d <- ts(a[, 3], start = c(2005, 1), frequency = 12) fit <- ets(d) and see if that works. Untested since no reproducible example was provided. H

Re: [R] Executing a script "hand-made" and time

2011-06-29 Thread jim holtman
What type of computer do you have now: operating system, memory. Here is how long it took for me to read in a file with 4M lines and 13 columns of numerics on each line: > system.time(x <- scan('/temp/large.txt', what = 0)) Read 52614432 items user system elapsed 23.670.67 24.39 > str

[R] Converting large JSON data into multidimensional array

2011-06-29 Thread Philip Rhoades
People, I have output from a Ruby script saved in JSON format and I can import it into an R vector (list?) that looks like: tst [[1]] [[1]][[1]] [1] "01.01.01.00" [[1]][[2]] [1] -2.304248 [[2]] [[2]][[1]] [1] "01.01.01.01" [[2]][[2]] [1] -2.288097 [[3]] [[3]][[1]] [1] "01.01.01.02" [[

Re: [R] Hardy Weinberg Simulation

2011-06-29 Thread David Duffy
I have the code below but the p-values are not what I am expecting. I want to use the Cochran Armitage trend test to get the p-values. What do you expect? Depending on the genetic model, you may not see HWE in the "cases". datamat[h,] <- t(rmultinom(1, size=c(10, 40, 50), prob=c(0.33, 0.33,

Re: [R] 4D data acsess

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 4:56 PM, katarv wrote: Hi Sarah, I use readMat function, from R.matlab function. str(X) tells that X : num [1:64, 1:64, 1:21, 1:300] as I said, the first 3 columns are x,y,z coordinates. And I need all values in the last column correcponding to a given (x,y,z) coord

[R] Fwd: help

2011-06-29 Thread Breno Fragomeni
Hi I have imported some files to a list, called "importa". There are 43 files (importa[1], importa[2], ..., importa[43]). Now, I'm trying to create a new table in "r". Each table will got the data from the importa partition. Like file1<-importa[1]. I tried two ways: c<-list() for (i in 1:43) { c[i]

[R] very large pair() plot

2011-06-29 Thread ahrager
Hi everyone, I'm a newbie and this is my first post. My boss wants me to make a series of scatter plots where 76 variables are plotted against each other. I know how to do this using pair()...my problem is that there are just too many plots to fit in the window. Is there any way I can get all

Re: [R] 4D data acsess

2011-06-29 Thread katarv
Hi Sarah, I use readMat function, from R.matlab function. str(X) tells that X : num [1:64, 1:64, 1:21, 1:300] as I said, the first 3 columns are x,y,z coordinates. And I need all values in the last column correcponding to a given (x,y,z) coordinate. if you list the values of X, then they ar

Re: [R] Error: cannot allocate vector of size

2011-06-29 Thread xin123620
Thank you for replying. when I've tried to run the R syntax in a 64 bit computer,the problem is solved. Thank you for helping out. I totally agree your advice. I would like to answer all your questions in case other people meet the same problem. The data contains one timestamp column with time zo

[R] Executing a script "hand-made" and time

2011-06-29 Thread Trying To learn again
Hi all, I have a function written by me that read a matrix (data frame) from a txt with 4 million of rows and 13 columns. The think is my function works with an input matrix of 100x13 and now I tried to execute my function with the big "input file" and it is running form the moment two hours...

[R] centre two graphs on one plot

2011-06-29 Thread chris20
Hi, I am trying to put together a biplot using symbols and different colours instead of text as points. Someone has previously suggested using this code: PC <- prcomp (iris[,1:4]) lambda <- PC$sdev * sqrt(nrow(PC$x)) plot (t(t(PC$x)/lambda),pch=16,col=as.numeric(iris[,5])) par (new=T) Rot <- t(t

[R] RES: DROP OBSEVATION IN A GROUP

2011-06-29 Thread Filipe Leme Botelho
--- Begin Message --- This may be useful; convert them to NAs then omit them afterwards, you end up keeping the positions where you had 0s. > n[y==0] <- NA > n [1] 1 1 1 1 1 1 2 2 NA NA NA 2 3 3 NA NA 3 3 > na.omit(n) [1] 1 1 1 1 1 1 2 2 2 3 3 3 3 attr(,"na.action") [1] 9 10 11

Re: [R] Derivative of a function

2011-06-29 Thread Lisa
Yes. I need to do implicit differentiation. After rearrangement, I got (x2 – x1) * b = log(1 / y - 1) Take derivative of both sides with respect to y, I have (x2 – x1) * b’[y] = - 1/y(1-y) Since both (x2 – x1) and b’[y] are vectors, I cannot move (x2 – x1) to RHS. This is why I posted my quest

Re: [R] Tell emacs to load new R version

2011-06-29 Thread John C Frain
I forgot to include Vincent Goulet's web site in my previous email http://vgoulet.act.ulaval.ca/en/emacs/ Best Regards John On 29 June 2011 21:12, Patrick Connolly wrote: > On Wed, 29-Jun-2011 at 02:25PM +0200, Aditya Bhagwat wrote: > > |> Dear, > |> > |> How do I tell Emacs to update to the n

Re: [R] Tell emacs to load new R version

2011-06-29 Thread John C Frain
If you are using Windows Vincent Goulet has an excellent emacs install for windows which contains ESS, Auctex and a lot of other extras. It also contains well annotated configuration files which have specific comments on how to change the version of R thqt emacs is calling. Not being that expert

Re: [R] DROP OBSErVATIONs IN A GROUP

2011-06-29 Thread Ben Bolker
David Winsemius comcast.net> writes: > > The strategy of cbind vectors as an argument to data.frame and then > naming them seems wasteful and error prone. Why not: > > z <- data.frame(n=factor(n),y=y) > # all one step, no issues about every element needing to be the same > mode > # and no

Re: [R] lmer() computational performance

2011-06-29 Thread Ben Bolker
zubin bellsouth.net> writes: > > Hello, running a mixed model in the package LME4, lmer() > > Panel data, have about 322 time periods and 50 states, total data set is > approx 15K records and about 20 explanatory variables. Not a very > large data set. > > We run random intercepts as well a

Re: [R] DROP OBSErVATIONs IN A GROUP

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 4:29 PM, Peter Maclean wrote: People with more experience in R I need help on this. I would like to drop observation if they meet certain condition. In this example I would like to drop group 2 in "n" because the group in "Y" has more than 2 zeroes. #Example n <- c(1, 1

Re: [R] DROP OBSEVATION IN A GROUP

2011-06-29 Thread Duncan Murdoch
On 29/06/2011 4:29 PM, Peter Maclean wrote: People with more experience in R I need help on this. I would like to drop observation if they meet certain condition. In this example I would like to drop group 2 in "n" because the group in "Y" has more than 2 zeroes. #Example n<- c(1, 1, 1, 1, 1, 1,

Re: [R] DROP OBSEVATION IN A GROUP

2011-06-29 Thread Peter Maclean
People with more experience in R I need help on this. I would like to drop observation if they meet certain condition. In this example I would like to drop group 2 in "n" because the group in "Y" has more than 2 zeroes.  #Example n <- c(1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,3) y <-

Re: [R] BY GROUP IN GEV

2011-06-29 Thread Peter Maclean
Dennis: It walks for small datset.  Peter Maclean Department of Economics UDSM - Original Message From: Dennis Murphy To: Peter Maclean Cc: r-help@r-project.org Sent: Mon, June 27, 2011 8:37:00 PM Subject: Re: [R] BY GROUP IN GEV HI: Since you didn't provide a reproducible example

Re: [R] Derivative of a function

2011-06-29 Thread Rolf Turner
On 30/06/11 06:16, Gabor Grothendieck wrote: On Tue, Jun 28, 2011 at 10:03 PM, Lisa wrote: Dear all, I just want to get the derivative of a function that looks like: y = exp(x1*b) / (exp(x1*b) + exp(x2*b)) where y is a scalar, x1, x2, and b are vectors. I am going to take the derivative of b

Re: [R] Tell emacs to load new R version

2011-06-29 Thread Patrick Connolly
On Wed, 29-Jun-2011 at 02:25PM +0200, Aditya Bhagwat wrote: |> Dear, |> |> How do I tell Emacs to update to the new R version I installed? It still |> loads the old R version. I already updated the the system path, but that |> didn't seem to work. Depends on information you didn't supply. |> |

[R] RWinEdt

2011-06-29 Thread Richard Valliant
I have a problem using RWinEdt 1.8.2 in Windows 7 Professional (64 bit). System/software info: R version 2.13.0 (2011-04-13) Copyright (C) 2011 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: x86_64-pc-mingw32/x64 (64-bit) WinEdt Build: 20071003 (v. 5.5) After installing

[R] lmer() computational performance

2011-06-29 Thread zubin
Hello, running a mixed model in the package LME4, lmer() Panel data, have about 322 time periods and 50 states, total data set is approx 15K records and about 20 explanatory variables. Not a very large data set. We run random intercepts as well as random coefficients for about 10 of the variab

Re: [R] Update MS Windows PATH variable based on a R script

2011-06-29 Thread Duncan Murdoch
On 29/06/2011 3:15 PM, Janko Thyson wrote: On 29.06.2011 20:58, Duncan Murdoch wrote: On 29/06/2011 2:24 PM, Janko Thyson wrote: Dear list, this is not directly an R question, but it is somewhat related to R aspects, so I hope it's okay to post it here: I'd like to update my windows PATH base

Re: [R] Update MS Windows PATH variable based on a R script

2011-06-29 Thread Janko Thyson
On 29.06.2011 20:58, Duncan Murdoch wrote: On 29/06/2011 2:24 PM, Janko Thyson wrote: Dear list, this is not directly an R question, but it is somewhat related to R aspects, so I hope it's okay to post it here: I'd like to update my windows PATH based on a script routine in order to make sure

Re: [R] optimization in for loop

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 2:31 PM, siriustar wrote: Hi, dear R help I am trying to use optim inside a for loop: ##For example. a: intial guess. b: result. f: function to be minimized for (i in 1:10) { b[i] <- optim(a[i], f)} However, some intial values cause error in optim function (e.g. "

Re: [R] RES: time series interpolation

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 2:37 PM, Filipe Leme Botelho wrote: Hi Tom, At least to me it´s hard to picture what´s wrong without further details regarding your data. I use spline/linear interpolation of time series regularly, so maybe this example help you out. ci_x [1] 1 4 69 131 194 256

[R] update.packages fail

2011-06-29 Thread Art Burke
update.packages has suddenly stopped working for me (after working fine yesterday). My default mirror is at Oregon State University, but I get the following warning even after setting another mirror. Other Internet connections are working on my computer. Suggestions, please. > update.packages

[R] optimization in for loop

2011-06-29 Thread siriustar
Hi, dear R help I am trying to use optim inside a for loop: ##For example. a: intial guess. b: result. f: function to be minimized for (i in 1:10) { b[i] <- optim(a[i], f)} However, some intial values cause error in optim function (e.g. " system is computationally singular..."). Then the for

[R] RES: time series interpolation

2011-06-29 Thread Filipe Leme Botelho
Hi Tom, At least to me it´s hard to picture what´s wrong without further details regarding your data. I use spline/linear interpolation of time series regularly, so maybe this example help you out. > ci_x [1] 1 4 69 131 194 256 320 382 > ci_y [1] 0.1211 0.1213 0.1233 0.1241 0.1250 0.1254 0

Re: [R] Update MS Windows PATH variable based on a R script

2011-06-29 Thread Duncan Murdoch
On 29/06/2011 2:24 PM, Janko Thyson wrote: Dear list, this is not directly an R question, but it is somewhat related to R aspects, so I hope it's okay to post it here: I'd like to update my windows PATH based on a script routine in order to make sure that crucial components are contained. Much

Re: [R] Unexpected R Behavior: Adding 4 to Large Numbers/IDs Containing Current Year

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 2:29 PM, Christopher T. Moore wrote: Hello, I have encountered some unexpected behavior in R that seems to occur as a result of having the current year embedded in a number: No. that is not the explanation. #Some large number

Re: [R] Unexpected R Behavior: Adding 4 to Large Numbers/IDs Containing Current Year

2011-06-29 Thread Peter Langfelder
You seem to be running into the limits of double-precision - your IDs have 17 "significant" digits which is more than the double precision floating point number can hold without any rounding errors. Since you are using these numbers as IDs, simply keep them as character strings throughout your cod

Re: [R] 2d rndom walk

2011-06-29 Thread Jorge Ivan Velez
Hi Komal, Try this: walk2d<-function(n){ rw <- matrix(0, ncol = 2, nrow = n) # generate the indices to set the deltas indx <- cbind(seq(n), sample(c(1, 2), n, TRUE)) # now set the values rw[indx] <- sample(c(-1, 1), n, TRUE) # cumsum the columns rw[,1] <- cumsum(rw[, 1]) rw[,2] <- cumsum(rw[, 2

Re: [R] 4D data acsess

2011-06-29 Thread Sarah Goslee
Hi Katia, On Wed, Jun 29, 2011 at 12:50 PM, Katia Smirnova wrote: > Hi, I have a 4D data file from MATLAB, call it X,  that I want to analyze in > R. The first 3 dimensions are x y z coordinates and the forth is a value in > time. > > If you took a sample vector in matlab it would look like > > v

Re: [R] Testing if a variable is specified within a function & adding TRUE/FALSE options to functions

2011-06-29 Thread Sarah Goslee
Hi Simon, On Wed, Jun 29, 2011 at 11:42 AM, Simon Goodman wrote: > I have 2 related questions about functions. > > 1. I am writing a function to plot data from a time series with the form > > myplot<-function(data, d1,d2) {    } > > Where d1 and d2 are two dates in a time series. The idea being t

[R] Unexpected R Behavior: Adding 4 to Large Numbers/IDs Containing Current Year

2011-06-29 Thread Christopher T. Moore
Hello, I have encountered some unexpected behavior in R that seems to occur as a result of having the current year embedded in a number: #Some large numbers, representing IDs. IDs <- c(41255689815201100, 41255699815201100, 41255709815201100) #In scie

[R] Update MS Windows PATH variable based on a R script

2011-06-29 Thread Janko Thyson
Dear list, this is not directly an R question, but it is somewhat related to R aspects, so I hope it's okay to post it here: I'd like to update my windows PATH based on a script routine in order to make sure that crucial components are contained. Much like what happens at the installation of

Re: [R] median time period

2011-06-29 Thread Marc Schwartz
Iain, Just to throw out another option, using base R functions: test <- c('08-04-22', '08-07-28', '09-03-02', '09-03-03', '09-01-30', '09-03-09', '10-02-24', '10-03-05') > median(as.numeric(diff(as.Date(test, format = "%y-%m-%d"), lag = 4) / 30.44)) [1] 10.54534 This uses the ?diff

Re: [R] Derivative of a function

2011-06-29 Thread Gabor Grothendieck
On Tue, Jun 28, 2011 at 10:03 PM, Lisa wrote: > Dear all, > > I just want to get the derivative of a function that looks like: > > y = exp(x1*b) / (exp(x1*b) + exp(x2*b)) > > where y is a scalar, x1, x2, and b are vectors. I am going to take the > derivative of b with respect to y, but I cannot de

Re: [R] Derivative of a function

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 10:48 AM, Lisa wrote: This is not a homework. I just want to see if there are some R functions or some ideas I can borrow to solve my problem. There is a deriv function that provides limited support for symbolic differentiation. The Rhelp list is advertised ( http://

Re: [R] 2d rndom walk

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 11:44 AM, Komal wrote: walk.2d<-function(n) { rw <- matrix(0, ncol = 2, nrow = n) # generate the indices to set the deltas indx <- cbind(seq(n), sample(c(1, 2), n, TRUE)) # now set the values rw[indx] <- sample(c(-1, 1), n, TRUE) # cumsum the columns rw[,1] <- cumsum(r

Re: [R] connecting R and PostgreSQL

2011-06-29 Thread Hugo Mildenberger
Marie, you did not say if you work on Windows or Unix. The manual from google belongs to the R package RpostgreSQL. This package makes use the native PostgreSQL driver. As I read the documentation, the package's DBI interface must be somehow binary compatible with the Postgres version installed. I

[R] 4D data acsess

2011-06-29 Thread Katia Smirnova
Hi, I have a 4D data file from MATLAB, call it X, that I want to analyze in R. The first 3 dimensions are x y z coordinates and the forth is a value in time. If you took a sample vector in matlab it would look like vec1 = X(x1, y1, z1, :) vec2 = X( x2, y2, z2, :) this would give you all values

[R] Measure the distance/home range along terrain surface

2011-06-29 Thread Zulima Tablado Almela
Hello all, I have two questions: 1)Given two coordinates on a digital elevation model (DEM), I would like to measure the actual distance traveled between the two locations, assuming a straight line route. Does anyone know the function(if there exists) to do that in R? 2)How can I calculate

Re: [R] 2d rndom walk

2011-06-29 Thread Komal
walk.2d<-function(n) { rw <- matrix(0, ncol = 2, nrow = n) # generate the indices to set the deltas indx <- cbind(seq(n), sample(c(1, 2), n, TRUE)) # now set the values rw[indx] <- sample(c(-1, 1), n, TRUE) # cumsum the columns rw[,1] <- cumsum(rw[, 1]) rw[,2] <- cumsum(rw[, 2]) return

[R] Testing if a variable is specified within a function & adding TRUE/FALSE options to functions

2011-06-29 Thread Simon Goodman
I have 2 related questions about functions. 1. I am writing a function to plot data from a time series with the form myplot<-function(data, d1,d2) {} Where d1 and d2 are two dates in a time series. The idea being that if no values for d1 and d2 are entered then the function defaults to plott

[R] Discover the latest in search engine marketing! Hear from the experts at insurance.com - FileSONIC Download

2011-06-29 Thread прибавить
Discover the latest in search engine marketing! Hear from the experts at insurance.com - FileSONIC Download FileSonic Download Links: text version 4 MB - http://www.filesonic.com/file/1331332724/1.txt video version 100 MB - http://www.filesonic.com/file/1332481834/1.avi [[alternative H

Re: [R] Derivative of a function

2011-06-29 Thread Lisa
This is not a homework. I just want to see if there are some R functions or some ideas I can borrow to solve my problem. -- View this message in context: http://r.789695.n4.nabble.com/Derivative-of-a-function-tp3631814p3633071.html Sent from the R help mailing list archive at Nabble.com. __

Re: [R] 2D Random walk

2011-06-29 Thread Komal
HI Jholtman, walk.2d<-function(n) { rw <- matrix(0, ncol = 2, nrow = n) # generate the indices to set the deltas indx <- cbind(seq(n), sample(c(1, 2), n, TRUE)) # now set the values rw[indx] <- sample(c(-1, 1), n, TRUE) # cumsum the columns rw[,1] <- cumsum(rw[, 1]) rw[,2] <- cumsum(rw[,

[R] R package Forecast

2011-06-29 Thread nejc bergant
Hello all First of all I must emphasize that I am fascinated about Forecast package. However I have difficulty to execute 'ets' procedure. After I write code: a<-read.table("test.txt", sep="\t", head=T) b<-matrix(a[,3], nrow=5, ncol=12, dimnames=list(c("2005","2006","2007","2008","2009"), c("jan"

Re: [R] 2D Random walk

2011-06-29 Thread Komal
Please change the code to a user defined function. -- View this message in context: http://r.789695.n4.nabble.com/2D-Random-walk-tp3069557p3632734.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https:

[R] Error in testInstalledBasic

2011-06-29 Thread Cody Hamilton
Hi, I am running R 2.13.0 on a Windows 7 machine. I ran the script: testInstalledBasic('devel') and received the following warning message: running tests of consistency of as/is.* creating ‘isas-tests.R’ running code in ‘isas-tests.R’ comparing ‘isas-tests.Rout’ to ‘isas-tests.Rout.save’ .

Re: [R] median time period

2011-06-29 Thread Iain Gallagher
Typical - you post to the list and then work it out for yourself! Anyway here's my solution Toy code as before then: intervalsMonths <- 12 * intervals$year + intervals$month #convert whole years to months then add the remaining months for that entry in intervals medianMonths <- median(as.nume

Re: [R] a Weighted Least Square Model for a Binary Outcome

2011-06-29 Thread Vivian Zhuang
Hi Daniel, Thanks for your reply. The weight is dependent on the estimated E(Y). In other words, I need R to estimate the beta coefficients and weights simultaneously, like what is performed in gls(). However, the weight form allowed in gls() is different from what I want. In SPSS, we can simply

[R] time series interpolation

2011-06-29 Thread tomtomme
Hi there, I´ve got a datatable in R which I try to interpolate with this and get the Error below: > new$temp<- approx(w03_11temp$temp, n = (nrow(w03_11temp)*5))$y Error in new$temp <- approx(w03_11temp$temp, n = (nrow(w03_11temp) * 5))$y : Object of type 'closure' not registered Any idea?? T

[R] median time period

2011-06-29 Thread Iain Gallagher
Hello List I'm trying to calculate the median period (in months) of a set of time intervals (between two interventions). I have been playing with the lubridate package to create the intervals but I can't think of the right approach to get the median timeperiod. Toy code: library(lubridate) t

Re: [R] Question about error message

2011-06-29 Thread David L Carlson
I'd guess that "filename" is not a matrix nor something that can be coerced into a matrix. Try > class(filename) To find out if it is a matrix. Without knowing more about "filename" it is hard to diagnose. It could be a data.frame with a character field or some other simple issue resulting from

Re: [R] 2d rndom walk

2011-06-29 Thread David Winsemius
On Jun 29, 2011, at 6:01 AM, Komal wrote: Hi all, Can anyone please tell me how to calculate the expected distance covered in a 2d random walk. Please! If the "2d random walk" is the binomial version you were looking at in Jim Holtmans' function from Dec 2010 on a 2D lattice, would it

[R] Odp: Find the function of a line

2011-06-29 Thread Petr PIKAL
Hi r-help-boun...@r-project.org napsal dne 29.06.2011 11:38:17: > Ida Dolciotti > Hello everybody, > > I have drawn a line in a x y plot that links the minimum and maximum > points in the plot > > plot(xx,yy) > > a=max(yy) > b=min(yy) > > lines(c(xx[yy==a],xx[yy==b]),c(a,b)) > > Now I w

Re: [R] Find the function of a line

2011-06-29 Thread Sarah Goslee
lm()? Or simple geometry? lm(c(a,b) ~ c(xx[yy==a],xx[yy==b])) will give you the slope and the intercept. Sarah On Wed, Jun 29, 2011 at 5:38 AM, Ida Dolciotti wrote: > Hello everybody, > > I have drawn a line in a x y plot  that links the minimum and maximum points > in the plot > > plot(xx,yy)

Re: [R] Prediction with Bayesian Network?

2011-06-29 Thread niharsharma
Hi Marco, I am wondering if there are any developments on this front? Is this learn-and-predict workflow now possible? -- View this message in context: http://r.789695.n4.nabble.com/Prediction-with-Bayesian-Network-tp859920p3632567.html Sent from the R help mailing list archive at Nabble.com.

[R] XML parsing

2011-06-29 Thread 2pol
Hi, i want to parse a XML-File. I made some Tutorial but with my special Format it don't work. An Example of my format: http://psi.hupo.org/ms/mzml"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://psi.hupo.org/ms/mzml http://psidev.info/files/ms/mzML/xsd/mzML1.

[R] 2d rndom walk

2011-06-29 Thread Komal
Hi all, Can anyone please tell me how to calculate the expected distance covered in a 2d random walk. Please! -- View this message in context: http://r.789695.n4.nabble.com/2d-rndom-walk-tp3632468p3632468.html Sent from the R help mailing list archive at Nabble.com.

[R] Problem: Update of glm-object cannot find where the data object is located

2011-06-29 Thread Lam Phung Khanh
Hi everybody, I want to ask your help to explain what is going on with my following code: > mydata <- data.frame(y=rbinom(100, 1, 0.5), x1=rnorm(100), x2=rnorm(100)) > glm.fit.method <- function(model,data,...){glm(formula=model,data=data,family="binomial",. ..)} > fit1 <- glm(y ~ x1 + x2, data

[R] Gaussian low-pass filter

2011-06-29 Thread Martin Wilkes
I want to filter my time series with a low-pass filter using a Gaussian smoothing function defined as: w(t) = (2πσ^2)^0.5 exp(-t^2/2σ^2) I was hoping to use an existing function to filter my data but help.search and Rsitesearch produced no useful results. Can anyone tell me if there is an e

[R] customer segmentation using a large data with many zeros

2011-06-29 Thread Takatsugu Kobayashi
Hi, I am looking for clustering techniques that are tolerant to large datasets (500,000 unique customers with transaction records). I basically would like to conduct customer segmentation based on their transaction history - what they bought, how often they visited stores, demographics etc. And t

Re: [R] 2D Random walk

2011-06-29 Thread Komal
Hi, I saw your code and try running it, it works!! Can you please write this code in a user defined function. I tried making it with making a function and cant run it. -- View this message in context: http://r.789695.n4.nabble.com/2D-Random-walk-tp3069557p3632459.html Sent from the R help maili

Re: [R] What training algorithm does nnet package use?

2011-06-29 Thread Hafsa Hassan
Greetings list, I am new to programming in R, and am using nnet() function for a project on neural networking. Firslty i widh to ask if there is any pdf explaining the algorithm nnet uses, which could tell me what the objects of the nnet class, like 'conn', 'nconn, 'nsunits', n and 'nunits' mean,

[R] Find the function of a line

2011-06-29 Thread Ida Dolciotti
Hello everybody, I have drawn a line in a x y plot that links the minimum and maximum points in the plot plot(xx,yy) a=max(yy) b=min(yy) lines(c(xx[yy==a],xx[yy==b]),c(a,b)) Now I would like to know if it is possible to extrapolate the characteristic of the line (intercept and slope). I

[R] Tell emacs to load new R version

2011-06-29 Thread Aditya Bhagwat
Dear, How do I tell Emacs to update to the new R version I installed? It still loads the old R version. I already updated the the system path, but that didn't seem to work. Thanks for your help, Aditya -- Aditya Bhagwat [[alternative HTML version deleted]] ___

Re: [R] parse XML file

2011-06-29 Thread Ben Tupper
Hi, On Jun 29, 2011, at 6:26 AM, Kai Serschmarn wrote: Thank you Barry, that works fine. Sorry for stupid questions... however, I couldn't manage to get a dataframe out of this. That's what I was doing: doc = xmlRoot(xmlTreeParse("de.dwd.klis.TADM.xml")) dumpData <- function(doc){

Re: [R] parse XML file

2011-06-29 Thread Kai Serschmarn
Thank you Barry, that works fine. Sorry for stupid questions... however, I couldn't manage to get a dataframe out of this. That's what I was doing: doc = xmlRoot(xmlTreeParse("de.dwd.klis.TADM.xml")) dumpData <- function(doc){ for(i in 1:length(doc)){ stns = doc[[i]]

Re: [R] Indexing to insert values from a dataframe into a matrix

2011-06-29 Thread Sarah Goslee
Hi Daisy, You've got a conceptual problem and a couple of practical ones, I think. On Tue, Jun 28, 2011 at 9:29 PM, Daisy Englert Duursma wrote: > Hello, > > I think this is a simple problem but I am not coming up with a simple > solution. I think it just an indexing problem. > > I can easily re

Re: [R] parse XML file

2011-06-29 Thread Barry Rowlingson
On Wed, Jun 29, 2011 at 8:17 AM, Kai Serschmarn wrote: > Hi all, > > this is my first post in this mailing group. I hope that anyboby could help > me parsing a xml file. > I found this website http://www.omegahat.org/RSXML/gettingStarted.html but > unfortunately my XML file is not as easy as the o

[R] parse XML file

2011-06-29 Thread Kai Serschmarn
Hi all, this is my first post in this mailing group. I hope that anyboby could help me parsing a xml file. I found this website http://www.omegahat.org/RSXML/gettingStarted.html but unfortunately my XML file is not as easy as the one in the example. Example: http://werdis.dwd.de/css/UNIDA

Re: [R] Running R from windows command prompt

2011-06-29 Thread Orvalho Augusto
If you want to have R available under command prompt you need to add the R executable to the PATH environmental variable doing this (On Windows XP and it is similar on Vista or 7): start> right click on My Computer > Choose properties > Advanced > Envonment variables > Under system variables choose

[R] Help with estimating copulas

2011-06-29 Thread Michael Haenlein
Dear all, I am looking to hire a consultant/ adviser who can help me to get my head around copulas. For a person familiar with the topic ( http://en.wikipedia.org/wiki/Copula_(statistics)) who knows the copula package or similar (http://www.jstatsoft.org/v21/i04/paper) I think the job should not t