similar to: xirr...

Hi, I am new to R, and as a first exercise, I decided to try to implement an XIRR function using the secant method. I did a quick search and saw another posting that used the Bisection method but wanted to see if it was possible using the secant method. I would input a Cash Flow and Date vector as well as an initial guess. I hardcoded today's initial date so I could do checks in Excel.

Rupert Gallagher writes: > By default, Apple Mail downloads all e-mails from? server's account. > Previous versions of this client allowed to opt-out. The latest two > versions? however, only allow to opt-out from downloading the > attachments. > > The stress on the server is unbearable. We cannot ask users to be > considerate: this is the default behaviour of Apple

Dear all, I would like to create a graphics menu. There is a function "menu" which presents the user with a menu of choices labelled from 1 to the number of choices(in the package base). But it's an "iteractive" function. Actually, i work with GRASS and R (under linux) and i use the command R --vanilla<"name" to execute my routine. That why, i

Hello all This is my first posting for some years. I am back using R again and must say I do like the language (regarding scripting, I also use matlab, perl, and bash). My question involves plotting a Pareto frontier in three dimensions. This is strictly a exercise in visualization, I make no attempt to extract the Pareto set (aka dominating subset) first. EXAMPLE PLOTS For some example

Greetings, I would be grateful if anybody can kindly give a pointer to port a Working netware 3.12 server using Centos >=5.x KVM howto? -- Regards, Rajagopal

Dear R-users, I have the following problem In a lab experiment I have to mix three solutions to get different concentrations of various molecules in a cuvette I've used R to calculate the necessary ?liters for each of the level of the experiment and I must confess that it is more useful and easier to achieve the results than using spreadsheets. But there's a problem. Imagine that

Dear all, I have a directory with my research project, containing files .RData and inflow.RData I am just curious, is there any way to explore contents of inflow.RData from command line without affecting .RData and without copying inflow.RData to another location? I can see names and character attributes (of something in the file) in a 3rd party raw file viewer. -- View this message in

To whomever may be of help, I am a student in a graduate modeling class at the University of North Carolina at Wilmington. I am trying to get a STELLA model converted into R. I am in the process of trying to 're-write' the script into R, but I seem to be missing pieces (i.e. parm values) that are keeping me from being able to replicate this model into R. Does anyone have an idea of a

On Oct 29, 2010, at 8:45 AM, Roman Divacky wrote: > hi! > > To continue the inflow of good news this week, let me announce that > clang -integrated-as (ie. ELF part of MC) compiles all of FreeBSD! > > This includes things like booting kernel, gnu libstdc++, clang/LLVM > itself and many other components that make up FreeBSD operating system. > > I personally consider

hi! To continue the inflow of good news this week, let me announce that clang -integrated-as (ie. ELF part of MC) compiles all of FreeBSD! This includes things like booting kernel, gnu libstdc++, clang/LLVM itself and many other components that make up FreeBSD operating system. I personally consider this a milestone where -integrated-as should become the default for ELF/{x86_64,i386}. Many

Dear all, I'm attempting to use a piecewise regression to model the trajectory of reproductive traits with age in a longitudinal data set using a mixed model framework. The aim is to find three slopes and two points- the slope from low performance in early age to a point of high performance in middle age, the slope (may be 0) of the plateau from the start of high performance to the

Timo, following our discussion on dovecot stats at the LinuxTag 2012 my team and I sat down and put together a list of stat items we think to be useful in daily dovecot usage. Besides pulling together all the data we also think it would be useful to have an SNMP interface to access the stats. Our offer to create and contribute a standalone web interface for dovecot stats stands. Here are the

Tomas, > In my scenario, the conversion is invoked by RGui before returning the input to the main R loop, even before the input gets to the parser. In principle, we could change this particular conversion in RGui to avoid the substitution. Not sure whether I am missing something here, but I used RStudio for my examples (I should have said) and David's mentioned RStudio as well, so it does

Hello. I don't understand a particular output of portfolio.optim (tseries). I have 4 assets and the portfolio.optim returns an asset with weight equals to zero. If I do a portfolio.optim with 3 assets, without the asset with weight equals to zero, it returns a completely different result. That's I would expected the same weights as the run with 4 assets. Below the code. Thanks in