similar to: how to transform string to variable name in a fuction?

Hi Everyone, I want to generate some random numbers according to some empirical distribution. Therefore I am looking for the inverse of an empirical cumulative distribution function. I haven't found any in R. Can anyone give a pointer? Thanks, Geoffrey _______________________________________________________=0A= =0A= =0A= The information in this email or in any file attached

Hello, I wonder what analysis i have to use to evaluate which environmental variables most closely related to the grouping that I have. I has 38 streams are grouped based on eight environmental variables, but I wonder how these variables relate to these groups. Example.: PH, dissolved oxygen and altitude over which these variables relate to a group one, and two . . . Understood .....???? my

I'm having a function of the form 1> f<-function(x){ 1+ 1+ return(x^p) 1+ 1+ } ,and I would like to integrate it with respect to x, where p should be any constant. One way would be to set a value for p globally and then call integrate function: p=2 integrate(f, lower = -1, upper = 1) However, I would like to use 'integrate' inside a function, so I could call it passing

I add a function abs64 to support abs for 64 bit integer -- 此致 礼 罗勇刚 Yours sincerely, Yonggang Luo -------------- next part -------------- A non-text attachment was scrubbed... Name: llvmabsfault.patch Type: application/octet-stream Size: 800 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090809/0d1aa27d/attachment.obj>

hi, i just ported the patch of David Hinkle http://www.mail-archive.com/asterisk-users@lists.digium.com/msg49781.html to the current cvs version of asterisk. the theory is that the leds of supervisioned extensions are blinking until a call is established whereafter the leds should be constantly lit. however it's not working. the asterisk server is sending the following xml notify to the

hello, I am using the following code >s<-"I am very happy, excited, and optimistic.I am very scared, annoyed, and irritated.Iraq?s political crisis entered its second week one step closer to the potential.dissolution of the government, with a call for elections by a vital coalition partner and a suicide attack that extended the spate of violence. that has followed the withdrawal.of

I wrote a custom fuction to read a root read-only file, it raised an Permission Denied error. During debug, i found this fuction seems to run as user puppet, it is this a feature or a bug? -- System Administrator, Focus on System Management and Basic Development -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To post to this group,

Dear All, Currently, I am translating Matlab code to R. I met difficulties to translate such Matlab codes into R: fprintf(fid,(' SPLITTING RESULTS ')); fprintf(fid,(' \n')); fprintf(fid,' Data base to analyze is a matrix %4i x %2i ',[n m]); fprintf(fid,' \n'); fprintf(fid,' h is %2i',h); fprintf(fid,' \n'); fprintf(fid,' group=0

I'm calling a list of symbols and then using a function to build a data frame from that symbol list. It works great until I introduce this index symbol from yahoo '^GSPC'. When and index symbol is introduced I get and error which is below. > Data <- symbolFrame(symbols) Error in get(S) : object '^GSPC' not found Since R does not like the ^ in front of a name it

Colleagues, I am trying to learn to use uniroot to solve a simple linear equation. I define the function, prove the function and a call to the function works. When I try to use uniroot to solve the equation I get an error message, Error in yfu n(x,10,20) : object 'x' not found. I hope someone can tell we how I can fix the problem

Hi, What is the simplest way to validate a positive integer? validates_numericality_of :foo, :integer_only => true how do I add the positive part? Do I need another validation statement for pattern matching or do I have to write a validate() funciton for my model? Thanks, Peter

Hello I am wondering, how do I find if R has a certain funciton to do a given task. do I just type help.search("rate"). I am just trying to find a function to calculate the rate of change for a variable. I could come up with one if there isn't any allready builtin. thanks

Windows XP R 2.3.1 I have a funciton fit1<-lm(y~x+z) Is there a function that will produce a 3-dimensional plot of y,x,z? I looked at the help files, but did not find a clean answer to my question. Thanks, John John Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology Baltimore VA Medical Center 10 North Greene Street

Dear all, I have a question about how to set arguments in my own function. For example, I have a function that looks like this: my.f <- function(a = x1, b = x2) { x1 = equation 1 x2 = equation 2 x3 = equation 3 y = a + b } x1, x2, and x3 are temporary variables (intermediate results) calculated from other variables within the funciton. I want to use two of these three

Dear r-Community, Step1: I would like to calculate a NMDS (package vegan, function metaMDS) with species data. Step2: Then I want to plot environmental variables over it, using function envfit. The Problem: One of these environmental variables is cos(EXPOSURE). But for flat releves there is no exposure. The value is missing and I can't call it 0 as 0 stands for east and west. Therefore I

Hi, people I am just new to R, when writing my loop functions, I meet a problem. There are some data frames, their names is randomized, ( e.g. a1,b3,c7, etc), what should I write it when I want to see them printed together in a loop function? I have tried : > for ( df in 'a1','b3','c7') { + print(print(df)) + } the

Hi, the patch below fixes function prototypes/defintions with void argument to shut up the heartful warnings by recent gcc :) It doesn't cover all places, e.g. test directories. The patch is to 1.1.2. Takashi --- src/metaflac/operations.c-dist 2005-05-25 16:20:02.000000000 +0200 +++ src/metaflac/operations.c 2005-05-25 16:20:09.000000000 +0200 @@ -26,7 +26,7 @@ #include <stdlib.h>

Hi, I would like to conduct a MANOVA. I know that there 's the manova() funciton and the summary.manova() function to get the appropriate summary of test statistics. I just don't manage to specify my model in the manova() call. How to specify a model with multiple responses and one explanatory factor? If I type:

hi, people How can we compare two probit models brought out from the same data? Let me use the example used in "An Introduction to R". "Consider a small, artificial example, from Silvey (1970). On the Aegean island of Kalythos the male inhabitants suffer from a congenital eye disease, the effects of which become more marked with increasing age. Samples of islander males

On 06/10/2020 11:00 a.m., Sorkin, John wrote: > Colleagues, > I am trying to learn to use uniroot to solve a simple linear equation. I define the function, prove the function and a call to the function works. When I try to use uniroot to solve the equation I get an error message, > Error in yfu n(x,10,20) : object 'x' not found. > > I hope someone can tell we how I can fix