similar to: fft: characteristic function to distribution

Hello all! I've posted the question before but I am still struggling for an answer, please help if you can;-) Suppose a discrete series of data is generated by the following equation: CF=exp(-(t^2)/2) which is the characteristic function of a random variable X with standard normal distribution, how do I *numerically* solve for its probability density function? i.e., obtain a series of data

Hi! Just updated to 1.0 rc15, but the problem remains. I think it could be client-dependent to some extent. I have only IMAPS access and Maildir. I have one mailbox which contains some 10,200 mails. That mailbox takes forever (have waited 30 minutes and then aborted) to open with Thunderbird 1.5.0.7. Other mailboxes (like dovecot :-), only 6984 mails) opens quickly. When Thunderbird tries to

I shouldn't try to do this on Monday morning. Can anyone suggest why the make for R 0.63 is failing for me under Solaris (SunOS 5.6). Paul Gilbert ... creating src/scripts/html2dos creating tests/Makefile creating tests/Examples/Makefile creating src/include/Platform.h R is now configured for sparc-sun-solaris2.6 Source directory: . Installation directory: /usr/local C

Dear sir, I am extremely sorry for messing up the logic asking for help w.r.t. my earlier mails   I have tried to explain below what I am looking for.     I have a database (say, currency_rates) storing datewise currency exchange rates with some base currency XYZ.   currency_rates <- data.frame(date = c("12/31/2010", "12/30/2010", "12/29/2010",

Dear R forum helpers, I am extremely sorry for the receipt of my incomplete mail yesterday. There was connectivity problem at my end and so I chose to send the mail through my cell, only to realize today about the way mail has been transmitted. I am again sending my complete mail through regular channel and sincerely apologize for the inconvenience caused. ## Here is my actual mail Dear R

Hi I'm sorry for the my trivial quest. I Have asterisk 1.4 with TDM 400 with FXO and FXS, and works fine from several months. Now I want to connect a device to TDMFXS that want a ring frequecy of 25 hz to activate: i am italian, and usually the ring freq is 20 hz. The other time (I have used that device several times with other asterisk installation) I have modified /etc//modprobe.conf and

R-devel, I'm interested in looking at some examples of existing R packages that rely heavily on S4 classes to get a feel for varying styles and package organization techniques. Could you recommend any packages that might serve as a good starting point? Thanks in advance, Jeff

R-devel, I'm interested in looking at some examples of existing R packages that rely heavily on S4 classes to get a feel for varying styles and package organization techniques. Could you recommend any packages that might serve as a good starting point? Thanks in advance, Jeff

Surprisingly, I played around with some test code and below actually creates equations that look correct. tempmat<-matrix(10,nrow=6,ncol=6) restrictmat<-diag(6) colnames(tempmat)<-c("AUD.l1","CHF.l1","CAD.l1","GBP.l1","EUR.l1","JPY.l 1")

Hello, I want to know if there are some functions or packages to solve differential and integral equation using R. Thanks. Shao chunxuan. [[alternative HTML version deleted]]

Hi R-devels, recently, we have seen a new warning by "R CMD check" appearing for the devel-version of our package distrEx available on r-forge, e.g. as *|install.packages("/distrEx/",repos="http://r-forge.r-project.org")|* Here is the warning: %--------------------- [...snip ...] * checking for unstated dependencies in R code ... WARNING .get_S4_methods_list():

*Hola!!! resulta que tengo unos datos de divisas ordenados por fechas (días) los que he convertido a formato tipo YYYY-MM-DD donde DD siempre es 01:* * * * EUR.resto$date<-as.Date(EUR.resto$date) EUR.resto$mo <- substr(EUR.resto$date,6,7) EUR.resto$yr <- substr(EUR.resto$date, 1,4)

Hello, I have simulated 30 observations from a binomial(5,0.1) distribution. Now I need to make frequency table( that means I need to tally how many 0's , 1's 2's....... 5's) I know that the simple R function table() will do this, but I am afraid that some times I may get zero frequency for some particular values (for example in the above there are 5-0's 10-1's ,

Full_Name: Byron Ellis Version: R 1.9.0 (and 2.0.0) OS: Linux (Redhat Fedora Core) Submission from: (NULL) (140.247.241.197) It appears that `R CMD build` cannot handle spaces in the path when building packages for distribution. For instance: [ellis@net-78815 ~/Bayesian Networks]$ R CMD build bnsl * checking for file 'bnsl/DESCRIPTION' ... OK * preparing 'bnsl': * cleaning src *

Hello Experts, I have a severe Problem with my current samba installations. Here in my Home-Office networt I have a dual-CPU machine with Debian Sarge, hosting some samba 3.0 shares and as well being a host for 4 vmware-sessions (Vmware Workstation v4.52, with 3xServer2003 and 1xXPpro). As well I have a separate raid5-server with samba 3.0 in the exakt same configuration (of course all parameters

Hi, I have an xts starting with a number of columns (currency pairs see below), then I add new ones which are derived from existing ones (like adding the moving average of a column) by merging the new columns one by one. These get the name of the column they are calculated from concatenated with ".1". All done by merge.xts, easy. Now, I have a function (procState below) which generates

Dear All Can R compute the expected value of a random variable? Thanks in advance, Paul

Doese anyone know a R function to find the median of a gamma distribution? [[alternative HTML version deleted]]

I'm trying to do a Hosmer-Lemeshow 'goodness of fit' test on my logistic regression model. I found some code here: http://sas-and-r.blogspot.com/2010/09/example-87-hosmer-and-lemeshow-goodness.html The R code is above is a little complicated for me but I'm having trouble with my answer: Hosmer-Lemeshow: p=0.6163585 le Cessie and Houwelingen test (Design library): p=0.2843620

Hi, Gordon Smyth brought the following problem to my attention. PROBLEM/"BUG": Using R v1.9.0 alpha for Windows and the latest Rtools from Brian Ripley you get the following problem trying to R CMD build a package (or a bundle); >R CMD build R.basic * checking for file 'R.basic/DESCRIPTION' ... OK * preparing 'R.basic': * checking whether 'INDEX' is