Re: [R] NextMethod in boxcox

2014-02-14 Thread Bert Gunter
However, note that I DID get it WRONG: The method invoked by the NextMethod() call in the boxcox.formula method is boxcox.default, NOT boxcox.lm. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge

Re: [R] minor version upgrade requires library refresh?

2014-02-14 Thread David Winsemius
On Feb 13, 2014, at 11:36 AM, Ross Boylan wrote: If R changes from 3.0.1 to 3.0.2, or more generally from m.n.p to m.n.q, is it necessary to refresh libraries to match the version, e.g., with update.packages(checkBuilt=TRUE, ask=FALSE)? The R Windows FAQ 2.8 says For those with a personal

[R] samSeq and poissonSeq - quantile.default error

2014-02-14 Thread jiag
Dear all, I have a RNA-seq cancer dataset (2 classes) with all raw integer counts, does NOT contain any NaN or missing value. When I run samseq and Poission-seq, I got the following error: Error in quantile.default(prop, c(0.25, 0.75)) : missing values and NaN's not allowed if 'na.rm' is FALSE

Re: [R] NextMethod in boxcox

2014-02-14 Thread Gene Leynes
Yes I read the help on NextMethod. In fact, since people frequently respond with did you read the help I mentioned that I had read the help in my original post. I'm very grateful for the time and effort that people put into answering questions, so I always try to answer the question myself first

[R] psych package - Cronbach`s Alpha - warning message

2014-02-14 Thread Johannes Moser
Dear R-help, I try to estimate alpha for a factor that loads onto two items, using the psych-package (newest version). The data is from the boston housing data set. The problem I face can be reproduced by the following approximation of the correlation matrix: library(psych) tt -

Re: [R] NextMethod in boxcox

2014-02-14 Thread Gene Leynes
In searching for NextMethod on http://www.rseek.org/ I found some helpful tutorials on S3 and S4 methods. Between your answer and the tutorials, I think I'm starting to understand. The NextMethod is just a dispatcher type of thing that doesn't do anything directly. I think you're saying that

[R] Product of MSE and number of parameters when generating covariance matrix for Nonlinear least squares?

2014-02-14 Thread Geoff Loveman
Hi! In 'An Introduction to R', section 11.7 on nonlinear least squares fitting, the following example is given for obtaining the standard errors of the estimated parameters: To obtain the approximate standard errors (SE) of the estimates we do: sqrt(diag(2*out$minimum/(length(y) - 2) *

Re: [R] NextMethod in boxcox

2014-02-14 Thread Gene Leynes
I found some good explanations of what the Box Cox transform for anyone who happens upon this thread while searching for boxcox details: This is the best explanation I found of what how the Box Cox transformation is calculated. It explains why QR decomposition is used, has nice code examples

Re: [R] NextMethod in boxcox

2014-02-14 Thread Thomas Lumley
On Fri, Feb 14, 2014 at 7:38 PM, Bert Gunter gunter.ber...@gene.com wrote: However, note that I DID get it WRONG: The method invoked by the NextMethod() call in the boxcox.formula method is boxcox.default, NOT boxcox.lm. The method chain is slightly unusual here, because of the liberal way

Re: [R] For two vectors, how to plot bin-to-bin histogram comparision in R?

2014-02-14 Thread arun
Hi, Try ?multhist() from library(plotrix) set.seed(49)  vec1 - rnorm(1e4,0,0.5)  set.seed(9453)  vec2 - rnorm(1e4,0,0.5) library(plotrix) multhist(list(vec1,vec2)) A.K. I've met a problem recently. Have you ever been met a plot like the belowing? In this picture, as you see, the solid

Re: [R] Printing a matrix in latexVerbatim without rownames.

2014-02-14 Thread David Winsemius
On Feb 13, 2014, at 2:07 PM, Gil Gamesh wrote: Hi, I'm printing a bunch of summary tables to a latex file using latexVerbatim from the Hmisc package. An example looks like this... x Visit N Min. 1st Qu. Median Mean 3rd Qu. Max. NAs [1,] 1 92 25 27.28 29.05 29.47

[R] why warnings message is there after running the plm regression

2014-02-14 Thread Ramesh Chandra Das
beer - read.csv(C:/Users/Administrator/Desktop/beer.csv) View(beer) attach(beer)The following objects are masked from chem_1: C_SALE, CFO, Company, DISEX, PPE, REV, ROA, SALE, TA, TAC, Year library(plm) y-cbind(TAC) x-cbind(TA,REV,PPE,ROA) pdata-plm.data(beer,index=c(Company,Year))

Re: [R] why warnings message is there after running the plm regression

2014-02-14 Thread Jim Lemon
On 02/15/2014 03:19 PM, Ramesh Chandra Das wrote: beer- read.csv(C:/Users/Administrator/Desktop/beer.csv) View(beer) attach(beer)The following objects are masked from chem_1: C_SALE, CFO, Company, DISEX, PPE, REV, ROA, SALE, TA, TAC, Year library(plm) y-cbind(TAC)

[R] Problem with POSIXt time zone

2014-02-14 Thread raphael.felber
Hello I have to convert character strings into POSIXt format. And would like to combine two of them. The following code does not what I expect. The single conversions of the character strings, gives a the date and time with time zone GMT as I expect. However if I combine two date time with c()

[R] a question about boxplot

2014-02-14 Thread Bogdan Tanasa
Dear all, a simple question about boxplot() function, on how not to display a set of values (outliers), but keep the same median of the original dataset on the display ; more precisely : given a dataset : 1,2,3,4,5,6, 100, 200,300 the median is : 5 after removing the extreme values : 100,

Re: [R] Problem with POSIXt time zone

2014-02-14 Thread Frede Aakmann Tøgersen
Hi Raphael Bug or not that for others to say. Here is an explanation and a work around. This is on my Windows 8 laptop and R-3.0.2: ## strptime gives you POSIXlt objects (see ?DateTimeClasses or ?striptime) t1 - strptime(paste(01.01.2013, 20:00:00),format=%d.%m.%Y %H:%M:%S, tz=GMT) t2 -

Re: [R] a question about boxplot

2014-02-14 Thread Jim Lemon
On 02/14/2014 07:52 PM, Bogdan Tanasa wrote: Dear all, a simple question about boxplot() function, on how not to display a set of values (outliers), but keep the same median of the original dataset on the display ; more precisely : given a dataset : 1,2,3,4,5,6, 100, 200,300 the median is :

Re: [R] What is the effect of how.many in the contrast function

2014-02-14 Thread jimj
Thanks Dr. I did read the help page but maybe I just don't understand enough about contrasts to take what I need from it. It says: If value supplies more than how.many contrasts, the first how.many are used. If too few are supplied, a suitable contrast matrix is created by extending value after

[R] Ignore errors and proceed to next

2014-02-14 Thread Alaios
Hi all, I have a very large number of vectors that I want first to look fast which distribution might be considered candidate for fitting. I made a simple loop that checks for all vector (the code below is for one vector and being called for each vector separately). If a good fit is found this

Re: [R] a question about boxplot

2014-02-14 Thread Bogdan Tanasa
that is a great suggestion ! thanks a lot Jim ! On Fri, Feb 14, 2014 at 1:14 AM, Jim Lemon j...@bitwrit.com.au wrote: On 02/14/2014 08:08 PM, Bogdan Tanasa wrote: thank you Jim ...the idea behind would be to subset a set of values ? I would need to automate it the display for a list of

Re: [R] Problem with POSIXt time zone

2014-02-14 Thread raphael.felber
Thanks a lot for the fast answer. Sys.setenv(TZ=GMT) is a good solution for me. Best regards Raphael -Ursprüngliche Nachricht- Von: Frede Aakmann Tøgersen [mailto:fr...@vestas.com] Gesendet: Freitag, 14. Februar 2014 10:02 An: Felber Raphael Agroscope; r-help@r-project.org Betreff:

Re: [R] Ignore errors and proceed to next

2014-02-14 Thread Frede Aakmann Tøgersen
Hi See ?try ?tryCatch So you still want to do these distribution tests even though you have been warned not to? Yours sincerely / Med venlig hilsen Frede Aakmann Tøgersen Specialist, M.Sc., Ph.D. Plant Performance Modeling Technology Service Solutions T +45 9730 5135 M +45 2547 6050

[R] Regex with criteria from multiple lines

2014-02-14 Thread Mark Stam
Hello, I do data analysis on json data (Twitter). An example of the data: ** \id\: 433662713886429200, \id_str\: \433662713886429184\, \text\: \Hond vast in water in Bargerveen bij Zwartemeer - http://t.co/FqbkOMzYd1 #Zwartemeer #bargerveen #hond #innood\,

Re: [R] Ignore errors and proceed to next

2014-02-14 Thread Alaios
Hi thanks for the answer. I have so vast majority of vectors that some distributions will not work for some cases but they work for others pretty well. This is the reason I store only those that worked to helpe get a coarse understanding how to proceed. If you have a better idea let me know

Re: [R] a question about boxplot

2014-02-14 Thread Bogdan Tanasa
Thank you Jim ! I made a little change in the script when assigning the median values - and it works ! thank you very much ! x_median-median(x,na.rm=T) y_median-median(y,na.rm=T) x-x[x10] y-y[y10] xy_box-boxplot(list(x,y),plot=FALSE) xy_box$stats[3,1]-x_median xy_box$stats[3,2]-y_median

[R] Simulate from an ARIMA Model with fixed errors

2014-02-14 Thread Chris89
Hi everyone!I am trying to make some synthetic data using two AR(1) models, but I am having some troubles.I want to make data from:x_t = \alpha x_{t-1} + a_{1t}y_t = \beta y_{t-1} + \gamma a_{1t} + \sqrt{1-\gamma^2} a_{2t}But I don't know how to set a fixed error term in the arima.sim()

[R] R windows close while calculating frequency

2014-02-14 Thread vikrant
HI , I am using R on a very huge datasets which contains lot of text. I prepared a all word vector of words by using strsplit function. Now I want to compute frequency of unique words from all word vector. For doing so, I used two ways 1) as.data.frame(table(x)) 2) sapply(x,x,length) x contains

Re: [R] R windows close while calculating frequency

2014-02-14 Thread Jeff Newmiller
That sounds like the operating system is terminating R due to overloading the system. You have not supplied the information requested in the Posting Guide, so you may not get very specific responses on how to solve this. I would suggest running partial data sets of larger and larger size to

Re: [R] What is the effect of how.many in the contrast function

2014-02-14 Thread Jeff Newmiller
http://cran.r-project.org/web/packages/MASS/citation.html --- Jeff NewmillerThe . . Go Live... DCN:jdnew...@dcn.davis.ca.usBasics: ##.#. ##.#. Live Go...

Re: [R] Regex with criteria from multiple lines

2014-02-14 Thread Jeff Newmiller
You need to use the JSON library or equivalent to solve this problem. I don't understand why you think that having the data in the clipboard prevents you from doing this since that is just another file (but I usually avoid using the clipboard for reproducible analysis anyway).

Re: [R] the unwanted persistence of refClass methods

2014-02-14 Thread Ben Tupper
Hello, On Feb 13, 2014, at 2:16 PM, Ross Boylan r...@biostat.ucsf.edu wrote: Redefining methods of a refClass does not change the methods for existing instances. I found this somewhat surprising, and also pretty inconvenient for debugging. The documentation for reference classes does

[R] duplicate couples (time-id) Error in pdim.default(index[[1]], index[[2]]) :

2014-02-14 Thread Ramesh Chandra Das
Sir, can you solve my problem. I did not get why this type of problem is there. duplicate couples (time-id)Error in pdim.default(index[[1]], index[[2]]) : Thanks and regards Ramesh Chandra Das Doctoral Student Vinod Gupta School of

[R] dim vector or data.frame

2014-02-14 Thread Berry Boessenkool
Hi, In my function, I want to allow input to be a vector or a data.frame. Certain operations need to be done if the length or nrows exceeds one, but since nrow doesn't work for vectors, I cannot simply use if( nrow(input)1 | length(input)1 ) ... So is there a more elegant way to do this then

Re: [R] duplicate couples (time-id) Error in pdim.default(index[[1]], index[[2]]) :

2014-02-14 Thread Jeff Newmiller
Sorry, psychic powers too weak. Suggest you read the Posting Guide for this mailing list. You may also benefit from reading http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example. --- Jeff

Re: [R] dim vector or data.frame

2014-02-14 Thread Jorge I Velez
Hi Berry, What about using NROW(input) ? Best, Jorge.- On Sat, Feb 15, 2014 at 2:26 AM, Berry Boessenkool berryboessenk...@hotmail.com wrote: Hi, In my function, I want to allow input to be a vector or a data.frame. Certain operations need to be done if the length or nrows exceeds one,

Re: [R] dim vector or data.frame

2014-02-14 Thread Bert Gunter
Yes. And there's also a possibility of keeping the vector as a one column data frame (using a drop=FALSE argument in indexing to avoid conversion to vectors perhaps) so that nrow() can be used. This has the disadvantage of the inefficiency of using a data frame when a vector will do, and the

Re: [R] How to superscript

2014-02-14 Thread arun
Hi, Try: x - 1985:1990 set.seed(45) y - sample(70:90,length(x),replace=TRUE) plot(x,y,xlab=Year,ylab=expression(Temperature~degree*C),main=April Average Temperature 1985-1990,type=p) A.K. I want to provide a label for my x,y plot as such: ylab=Temperature (^oC), where the o is meant to be

Re: [R] How to write a regression model for finding the radius of a cylinder given height and volume

2014-02-14 Thread William Dunlap
URL - http://r.789695.n4.nabble.com/file/n4685033/cylinder.dat; cyl - read.table(URL, header = TRUE) plot(vol ~ ht, data = cyl) Since importing data is one of the more error-prone operations in any computer system, I like to recommend that people always take a look at what they read before

Re: [R] Printing a matrix in latexVerbatim without rownames.

2014-02-14 Thread Greg Snow
Have you tried setting all the rownames to be the empty string? Its a bit of a kludge, but a simple one. On Thu, Feb 13, 2014 at 3:07 PM, Gil Gamesh games...@gmail.com wrote: Hi, I'm printing a bunch of summary tables to a latex file using latexVerbatim from the Hmisc package. An example

Re: [R] duplicate couples (time-id) Error in pdim.default(index[[1]], index[[2]]) :

2014-02-14 Thread arun
Hi, Check these links: http://r.789695.n4.nabble.com/quot-duplicate-couples-time-id-quot-Problem-td4636316.html http://stackoverflow.com/questions/15960129/r-plm-year-fixed-effects-year-and-quarter-data A.K. On Friday, February 14, 2014 7:57 AM, Ramesh Chandra Das rameshchandrada...@gmail.com

Re: [R] How to superscript

2014-02-14 Thread Rolf Turner
The given solution is the right one for the degree symbol, but does not answer the overall question of how to superscript, in particular how to superscript with nothing actually preceding the superscript. In general ^ is used to obtain superscripts in plotmath (RTFM!) and if nothing comes

Re: [R] NextMethod in boxcox

2014-02-14 Thread Bert Gunter
Well, since this is really a question about understanding how S3 methods work, and this is not the place for a tutorial, I think what you need to do is search out a tutorial that you understand. But very briefly, it does what it says. The object argument is supplied to the boxcox generic; lm()

Re: [R] NextMethod in boxcox

2014-02-14 Thread Bert Gunter
Inline. Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Fri, Feb 14, 2014 at 4:19 PM, Gene Leynes gleyne...@gmail.com wrote: In searching for NextMethod on