Displaying 20 results from an estimated 200 matches similar to: "repeat a function"
2017 Nov 02
2
repeat a function
Hi Petr,
Many thanks for your response.
Basically I want to create a probability matrix to be used in a trinomial tree going forward. This is the reason why I thought to build the matrix around 0 would be much more efficient. I need to loop through because the probabilities will depend on my node and is not always the same per row (e.g. if N> jmax, jmax being defined in another function)
I
2017 Nov 03
0
repeat a function
Hi
Well, I am not an expert in this field so I cannot comment your approach. I wanted only to point out that building matrix your way is like scratching your left ear with right hand, especially in R. What if you want increase size of your matrix?
E.g. you use function ProbUP once for row "0" and than for rows different from jmax (if I correctly understand your code). Use of any
2017 Nov 02
0
repeat a function
Hi Eric
I did not see any answer and frankly speaking I cannot provide you with canned help.
AFAIK if a function is defined within another function (which is your case) it cannot be called directly so it is necessary to define it in global environment.
> fff <- function(x) {
+ myf <- function(a) a+2
+ myf(x)^2}
>
> fff(5)
[1] 49
> myf(5)
Error in myf(5) : could not find
2008 Apr 29
1
A Maze Generator
I had some fun this afternoon coding up a 'maze generator' in R. I
thought I'd pass along the fruits of my labor for everyone's amusement.
As written, every point is connected to every other point, so feel free
to 'start' and 'finish' anywhere you like.
Have fun!
--Robert
PS. Feel free to pass along suggestions or comments.
2010 Jan 13
1
Running Asterisk & Freepbx on readonly Root (Stateless System)
Hi
I am trying to Run AsteriskNow 1.5 which uses Centos 5.3 Distribution
with Readonly Root Filesytem.
Right now if I shutdown the system abrupty or there is power failure linux
kernel
doesn't not boot "Kernel panic" and other short of issues.prb due to
corrupted files.
Thats why i want to make root filesystem as read-only and placing some
directories
/var and /etc/asterisk etc as
2009 Apr 01
1
Vector of Vectors
I have a matrix of data. I need to scan the matrix and find every
sequence from maxima to maxima across a row. I can write a loop to do
this easily. Problem is, I can't figure out how to store the results.
Each result is a vector of widely varying lengths. Ideally I'd like a
vector of these, i.e. a vector of vectors, so I can quickly iterate
through them and compute correlation
2011 Feb 07
0
Combining the results from two simple linear regression models
Hi all. This is more of a stats question, I suppose.
Let's say I have two separate simple regressions of weight on year from two
different datasets. I want to combine the regressions so that I can come up
with a single equation for the total weight regressed on year. In reality,
there is missing data, so I can't just sum the data across datasets and come
up with a regression on the
2007 Aug 17
1
Connecting a GSM gateway to a FXO port
I am trying to get a GSM gateway (Alpha Tech GSM Gateway Blue Gate Dual
Band Analoog FXO) working with Asterisk.
I had a working FXO configuration to a analog port of a small home 1/4
ISDN pbx.
I used this same configuration to connect a GSM Gateway that is supposed to
be connected to the external(FXO) analog port of a pbx.
I can get my configuration to dial the mobile number via the gateway, but
2012 Nov 19
0
expand time period
I'd like to expand the following data to perform a daily time series.
It should cover from '2012-07-01' to '2012-10-06' with the values I
actually have being the mean from one point measurement to another. Does
anyone has a clue to perform this task.
structure(list(Date.beg = structure(c(15635, 15617, 15615, 15610,
15609, 15605, 15604, 15601, 15593, 15593, 15586, 15581,
2008 Jul 01
4
Errno::EIO - Input/output error
hi all,
my appl works well but i get the following error suddenly for few
pages. to resolve this, i had to restart the server everytime. then it
works fine for some time, but after some time it appears again. this is
happening contineously. i searched for solution on this, but didn''t get
much. can anybody help in this plaese? any help will be greatly
appreciated... i''ve pasted
2010 Apr 27
1
cca standard error species
Dear all,
I realised a correspondence analysis with function cca() of vegan library.
Just like in Okansen (2010) in the example of R help:
library(vegan)
data(varespec)
data(varechem)
vare.cca<-cca(varespec~ Al + P + K, varechem)
With plot.cca() function I represented the species matrix in the next way:
plot(vare.cca,display="species")
Being similar to:
plot((c(-2,2)),(c(-2,2)),
2008 May 05
7
extract and assign xml values to variable
hi,
how can we assign an xml element value to some variable in
controller? e.g. if we have
<order>
<id>1</id>
<name>abc</name>
<location>xyz</location>
</order>
and if we want value of name i.e. ''abc'' to be assigned in a variable
declared in a controller, say order_controller, like this- temp = "value
of xml element
2009 Nov 29
1
optim or nlminb for minimization, which to believe?
I have constructed the function mml2 (below) based on the likelihood function described in the minimal latex I have pasted below for anyone who wants to look at it. This function finds parameter estimates for a basic Rasch (IRT) model. Using the function without the gradient, using either nlminb or optim returns the correct parameter estimates and, in the case of optim, the correct standard
1999 Jul 16
0
Contractor needed for MSVC wrapper to Loess
Hi,
Our firm is looking to see if it is possible to wrap some of more advanced lib
in R like modreg.dll and specifically Loess function in there for both
regression and prediction into MSVC++. We will probably take it to either VB or
Python for implementation issues. Given that locfit has many utitlities built in
for data transformation, this would be a good thing.
If that's not
2002 Jan 02
1
Man page for RC3
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello vorbis,
uhmm... i've just installed the RC3 packages (for debian, but i'm
pretty sure it's not going to matter what linux (or even *nix) you
use) and the man pages for "oggenc" still says "release
candidate 2" up the top of the man page. This should possibly be
checked next time <grins>. The rest of
2009 Oct 06
0
Bifurcating Autoregression
Is there any R package that implements a bifurcating autoregression,
aka the BAR(n) model? I've been reading the Huggins and Staudte paper,
"Variance Components Models for Dependent Cell Populations", from the
Journal of the American Statistical Association, 1994.
Shawn Garbett <shawn.p.garbett at vanderbilt.edu>
Vanderbilt Cancer Biology
220 Pierce Ave, PRB 715AA
2005 Jan 26
3
DC++ 0.668 - Annoying "tooltips"
Hello there ?
There were folks in the recent time running DC++ on wine. I'm also one of
them, and I have a small problem, which turns out to be very annoying. The
action buttons at the top of the main DC++ window as well as tabs at the
bottom tend to show "tooltips" containing information about the last files
to be hashed. However, there is an error somewhere that these tooltip
2006 Jun 28
2
read file with readBin (the file was saved with a C-routine)
Hello!
I have problems with using of "readBin" to read files, which was written in C with "fwrite". In the C-File there is the following Code:
fwrite(MyitINI,sizeof(itINItype),1,outfile);
where MyitINI is a structure of the following form
typedef struct{
int KernelFileSave; /* Determined, if Systemmatrix saved or not.*/
char KernelFileName[200]; /* A-Matrix name
2011 Jun 02
0
mChoice prb in rms
Dear all,
I?m trying to get a output table for age and the summary of a and b, stratified by epo as follows using summary.formula
h<-data.frame(a=sample(c("A",NA),100,replace=T),b=sample(c("B",NA),100,replace=T),age=rnorm(100,50,25),epo=sample(c("Y","N"),100,T))
library(rms)
2010 Aug 29
2
glm prb (Error in `contrasts<-`(`*tmp*`, value = "contr.treatment") : )
glm(A~B+C+D+E+F,family = binomial(link = "logit"),data=tre,na.action=na.omit)
Error in `contrasts<-`(`*tmp*`, value = "contr.treatment") :
contrasts can be applied only to factors with 2 or more levels
however,
glm(A~B+C+D+E,family = binomial(link = "logit"),data=tre,na.action=na.omit)
runs fine
glm(A~B+C+D+F,family = binomial(link =