similar to: Floating simulation error

Hi everyone, I am trying to accomplish a small task that is giving me quite a headache. I would like to automatically generate a series of matrices and give them successive names. Here is what I thought at first: t1<-matrix(0, nrow=250, ncol=1) for(i in 1:10){ t1[i]<-rnorm(250) } What I intended was that the loop would create 10 different matrices with a single column of 250

Hi everyone, I am trying to calculate a particular variable (vector) from some previously defined variables in a loop but I am having trouble figuring out how to get the loop to recognize that it should index for the previously defined objects. Here is a simplified version of what I am trying to do: for(i in 1:10){

Hi everyone, I am having a bit of trouble correctly structuring an equation in R. Here is the equation Here is what I thought for(i in 1:numItem)for(x in 1:numCat) Ptheta[,i,x]<-(exp(-1.702*a[i]*(theta-b[i,x+1])) My problem is that I am not sure how to get it to read the equation as having two indexing points (i and x). Right now it is trying to read it as a matrix, but

Hi Guy's I was wondering if someone could point me in the right direction. dbinom(10,1,0.25) I am using dbinom(10,1,0.25) to calculate the probabilty of 10 judges choosing a certain brand x times. I was wondering how I would go about simulating 1000 trials of each x value ? regards Brendan -- View this message in context:

Hi everyone, I am running a monte carlo and am getting an error that I haven't the slightest clue where to begin figuring it out. The error is as follows: Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 0 (non-NA) cases In addition: Warning message: In ltm.fit(X, betas, constraint, formula, con) : Hessian matrix at convergence is not positive definite;

Hi, I have a function that generates some output with 2 columns, but I only want to write the first column to a file. Is there a way to do this in the write.table command? thetaout=write.table(estimatedtheta, file="/Users/morse07/Desktop/R/ Trial/score.dat", row.names=F, col.names=F) Any advice would be great, thanks! [[alternative HTML version deleted]]

Hello Matt, I've had similar misfortunes too with interdomain trusts. I think you're working along the right lines since you seem to want to do the same thing as I. However the NT_STATUS_UNSUCCESSFUL is an error I always get when trying to connect to the IPC$ share of the PDC of the trusting domain. In my case the trusting PDC is a Windows 2003 Server. I know it's not an issue

Revolution Analytics staff write about R every weekday at the Revolutions blog: http://blog.revolutionanalytics.com and every month I post a summary of articles from the previous month of particular interest to readers of r-help. In case you missed them, here are some articles related to R from the month of January: Princeton's Germ?n Rodr?guez has published a useful "Introduction to

The following is a message to be sent to the President of the United States of America. Although we may not be able to do a great deal from where we are, but for the people of America just knowing we care and feel their sadness will help. Please put your name on the following list and send it to all you know and who care. If you are the 100th name and every 100th there on could you please also

Hi, I have some code which relies on the floating point rounding mode to be set to round-to-negative-infinity. This means that there are some floating point optimizations which are legal with the default round-to- nearest mode but not with rounding to negative infinity. Does LLVM reorder or otherwise optimize floating point operations? I've looked at the options for

This is just curiosity, but I'm wondering why the Morsecode app has remained part of the trunk for all of these years. Is there any practical use for this or is it just an homage to the ghosts of telecommunications past? Does anybody use the Morsecode app for anything interesting? I'm strangely fascinated by this core piece of Asterisk functionality. -Chris

Can anyone supply a link on a how-to (or provide intructions) on recompiling a centos 4 kernel? I'm trying my old rhel 3 commands and they arent working.

Since 2008, Microsoft (formerly Revolution Analytics) staff and guests have written about R at the Revolutions blog (http://blog.revolutionanalytics.com) and every month I post a summary of articles from the previous month of particular interest to readers of r-help. In case you missed them, here are some articles related to R from the month of December: Hadley Wickham's Shiny app for making

I've had trouble getting a definitive answer to this one, so please forgive me for asking here. When converting between integer and float audio samples, what is the preferred scale factor? For example, if you were converting to signed 8-bit, the possible range is -128 to 127. Do you map float -1.0 to -127 or -128? Brendan

For those who don't follow Ubuntu development carefully, the first Beta for the next Ubuntu was recently released, so I took my home system and upgraded to help out with filing bugs, etc. Just to be clear, I am not looking for help with the upgrade process. I've had R, and a few miscellaneous CRAN packages installed on this computer for years. Today, when I loaded an R session I had

For those who don't follow Ubuntu development carefully, the first Beta for the next Ubuntu was recently released, so I took my home system and upgraded to help out with filing bugs, etc. Just to be clear, I am not looking for help with the upgrade process. I've had R, and a few miscellaneous CRAN packages installed on this computer for years. Today, when I loaded an R session I had

Start the REvolution without me... http://danesecooper.blogs.com/divablog/2009/10/start-the-revolution-without-me.html *From Danese Cooper's Blog* Some of you may have become aware of REvolution Computing<http://revolution-computing.com/>, a commercial open source company organized around the R Language<http://www.r-project.org/>, when I joined in March

Does anyone know any more than is in the following press release about REvolution Computing and their commercialization of R? http://www.intel.com/capital/news/releases/080122.htm "Intel Capital, the global investment arm of Intel Corporation, today announced that it has invested in the Series A financing of REvolution Computing, creator of parallel computing software for computational

On Fri, Jan 10, 2020 at 7:02 AM Jeremy Morse <jeremy.morse.llvm at gmail.com> wrote: > Hi, > > On Wed, Jan 8, 2020 at 8:38 PM Adrian Prantl <aprantl at apple.com> wrote: > > As far as LLVM semantics are concerned, the implicit pointer doesn't > seem to be that much different from any other implicit values (such as > constants) to me. Why do you think that it

Are there any open source efforts ( I haven't found any) that have a tftp server with a mysql backend? I'd like an incoming pxelinux request to give the tftp server the mac address, and then it performs a query to find out which configuration file it should get. Of course it would be great if some day tftp-hpa would integrate with libmysql.. Thanks, James James S. Martin, RHCE