Hi all,
Would be great if you could help me get my head around the further
arguemnts in the optim function. Let's say we have f and g as shown:
f-function(x,a,b){(x-a)^2+b}
optim(100,fn=f,gr=NULL,2,5) #the NULL is annoying
g-function(x,a){2*(x-a)} optim(100,fn=f,gr=g,2,5)
1. How does optim
Hi,
@David: thank you for your fast response. I changed the universe to cover
the at least the total range of the values in the dataframe. However, this
does not save the problem for several combination of depth and velocity. I
attached the same example as before but with a dataframe of such
Dear all,
I would like to replace some values in a dataframe (including the columns
Action, Interval and Artificiality) depending on a combination of different
conditions
the command I tried is
for (j in 1:nrow(data))
{
if ((data[j,data$Action]==s) (data[j,data$Interval]==l) (data[j,data
On 10-05-2013, at 10:59, KatrinH Heimann katrinheim...@gmail.com wrote:
Dear all,
I would like to replace some values in a dataframe (including the columns
Action, Interval and Artificiality) depending on a combination of different
conditions
the command I tried is
for (j in
On 10-05-2013, at 10:59, KatrinH Heimann katrinheim...@gmail.com wrote:
Dear all,
I would like to replace some values in a dataframe (including the columns
Action, Interval and Artificiality) depending on a combination of different
conditions
the command I tried is
for (j in
2013/5/9 PIKAL Petr petr.pi...@precheza.cz
Hi
Thank you, that was the option I look for
Use drop=TRUE argument in interaction for removing unused levels.
Petr
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Adel
Hiya,
I'm using simple glm binomial models to test the effect of treatment
(factor, 3 levels) on infection prevalence (infected/uninfected):
ad3-glm(Infection~ecs, family=binomial, data=eilb)
but summary() function returns for each of the factor-level coefficients
against the control treatment:
Dear Alfonso
On 10 May 2013 12:51, alfonso.carf...@uniparthenope.it wrote:
we are computing maximum likelihood estimations using maxLik package and we
realized that the results of the estimation depend on the version of the
package installed
for example if we try to estimate this function
Katarzyna Kulma katarzyna.kulma at gmail.com writes:
Hiya,
I'm using simple glm binomial models to test the effect of treatment
(factor, 3 levels) on infection prevalence (infected/uninfected):
ad3-glm(Infection~ecs, family=binomial, data=eilb)
but summary() function returns for each
Hi all, i used the function unionSpatialPolygons to dissolve polygons
according to an ID value. However, the results were not that i was
expecting. It created a SpatialPolygon and it grouped the objects according
to the ID value. i.e. one polygon had about 3 subpolygons with the same
value. How is
Awesome, exactly what I was hoping for! Thanks so much! You are right - I
put in the wrong end dates for the second day.
Best,
Kai
On Thu, May 9, 2013 at 4:01 PM, Rui Barradas ruipbarra...@sapo.pt wrote:
Hello,
Maybe the following will do it. Note, however, that in your data, for
start
Hi the list,
I include some C code in a R function using .C. The argument is a character.
I find how to acces to the characters one by one:
--- 8 --- C
void dealWithCharacter(char **chaine, int *size){
int i=0;
for(i=0;i*size;i++){
Rprintf(Le caractere %i est
Hi,
May be this helps:
fibv =function(n)
{
f1 = f2 = 1
f3- c(f1,f2)
for(i in seq(2, n-1)) {
if(n == 0 || n == 1) return(n)
if(n == 2) return(1)
f = f1 + f2
f2 = f1
f1 = f
f3- c(f3,f)
}
f3
}
fibv(0)
#[1] 0
fibv(1)
#[1] 1
fibv(3)
#[1] 1 1 2
fibv(10)
# [1] 1 1 2 3 5 8 13 21 34 55
A.K.
Anyone have a clue why assigning to a list field in a RefClass is so much
slower than assigning to a plain old list?
For example, given a list of length N, if I want to assign a value to each
entry, then the running time is quadratic in N.
That is, refclass$a.list[[i]] - value is much much
Hello,
There's at least one example where only the form attr(x, foo) - bar
would work, not the other form. If you want to set attributes
programatically, use the first form, like in the function below. Note
that the example is artificial.
setAttr - function(x, attrib, value){
On 10/05/2013 10:50 AM, Rui Barradas wrote:
Hello,
There's at least one example where only the form attr(x, foo) - bar
would work, not the other form. If you want to set attributes
programatically, use the first form, like in the function below. Note
that the example is artificial.
setAttr -
hi all --
i've written a series of procedures to annotate nodes in a dendrogram
object.
i'd like to be able to easily pluck out some of these attributes and view
them in tree form.
in a regular list, i'd do something like:
sapply(my_list, function(x) x$my_entry)
and in a dendrogram, i can use
thanks, both.
the only real difference between the two approaches that i can see is when
assigning _new_ attributes to an object where the attribute name is itself
variable.
something like this:
attributes(my_obj)[[my_attr_name]] - my_attr_value
...fails when my_obj doesn't already have an
Hi list,
Does anyone know the code behind rlnorm(n, meanlog = 0, sdlog = 1)? I am
going to write it in c#.
thanks
Alireza
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
Hello,
R is open source, you can download the sources and then grep rlnorm to see
file: src/library/stats/distn.R
rlnorm - function(n, meanlog=0, sdlog=1)
.External(C_rlnorm, n, meanlog, sdlog)
And file rlnorm.c is in src/nmath. It returns exp(rnorm(meanlog, sdlog))
So you'll have to
Katharine,
Thank you for the pointer, and thanks to Josh Ulrich and William Dunlap for
good suggestions.
(Also thanks to Dirk Eddelbuettel for shaming me into modifying the code.)
William's fnTracer wrapper technique doesn't require rebuilding the package, so
it's easier in some ways,
especially
attributes(my_obj)[[my_attr_name]] - my_attr_value
...fails when my_obj doesn't already have an attribute named my_attr_name.
Do you have an example of this? In R-2.15.3 I don't see that problem:
my_obj - 37:41
my_attr_name - myAttr
my_attr_value - as.roman(2012:2013)
This is a feature request. Or else a howto request. Can there be some
simple, automatic way to make fonts embed into pdf output? Could this be in
options() or par()?
Why?
I recently wanted to create a paper for a conference in a format called
AAAI (which I had never heard of before because I
Dear all,
we are computing maximum likelihood estimations using maxLik package
and we realized that the results of the estimation depend on the
version of the package installed
for example if we try to estimate this function with an old version of
maxLik under R 2.13.1 (32 bit version
Dear all,
I want to compare a huge vector with selected element from a matrix.
A is a matrix and B is a vector. I want to compare each element of B with
selected element from A. C and D are selection criteria. They are vectors
of same length as B. C specifies the row number of A, and D specifies
Hi,
maybe we changed the convergence criteria a little bit? I cannot remember,
but we have played around with those a few times. You may try those,
perhaps it helps a bit.
Another recommendation---as you do not supply analytic gradient, you may
want use BHHH method instead (if this applies to
Thanks to all
The main problem with ma linux system is that its not able to install any
software using sudo command.
like i used command yum search libX11 , it shown that yum is not installed
and when i use sudo apt-get install yum
its giving error
E: Unable to locate package yum
same problem
I am currently using the PGLM package and I would like to implement a
within-model. Unfortunately, I do not succeed as I am not a big expert in
panel regression.
I am using the example data set from the PGLM package:
library(pglm)
data('Unions', package = 'pglm')
anb -
Hi,
I am trying to use the package 'SeqMiner zhanxw.com/seqminer/, and I
would like to use any of the functions
readVCFToMatrixByRange()
readVCFToMatrixByGene()
readVCFToListByGene()
or readVCFToListByRange()
I have run the example code on the test datasets, and have got the
expected output.
hi,
is there a way to estimate the parameters of an IRT model (in my case, the
graded response model), when some item parameter are already known? what i have
heard is that other irt programs such as parscale allow to prespecify some of
the item difficulty and location parameters and estimate
Thanks, this one works!
On Thu, May 9, 2013 at 5:09 PM, Gabor Grothendieck
ggrothendi...@gmail.comwrote:
On Thu, May 9, 2013 at 8:09 PM, Gabor Grothendieck
ggrothendi...@gmail.com wrote:
On Thu, May 9, 2013 at 7:24 PM, Ye Lin ye...@lbl.gov wrote:
Hey All,
I want to duplicate the
Dear R-users,
I am looking for a solution to parallelize my PLSR predictions in order to
save processing time. I was trying to use the foreach construct with doPar
(cf. 2nd part of code below), but I was unable to allocate the predicted values
and the model performance parameters (RMSEP) to the
Try using a 2-column matrix, with columns formed from C and D, to subscript A.
E.g.,
A - matrix(101:132, nrow=8, ncol=4)
C - seq_len(nrow(A))^2 %% nrow(A) + 1
D - seq_len(nrow(A))^3 %% ncol(A) + 1
for(j in seq_len(nrow(A))) print(A[C[j], D[j]])
[1] 110
[1] 105
[1] 126
Meenu:
You have an elementary Linux setup and configuration problem to understand
first, before you worry about configuring and compiling your own R. I
agree strongly that this is something that all linux users should learn to
do, but compiling R itself is like climbing Mt Everest as your first
Dear All
I have the following code:
datetime -c(1/1/13 00:00,1/1/13 12:00,1/2/13 00:00,1/2/13 12:00)
datetime -as.POSIXct(datetime,format='%m/%d/%Y %H:%M')
times
On 5/10/2013 5:22 AM, Ott Toomet wrote:
Hi,
maybe we changed the convergence criteria a little bit? I cannot remember,
but we have played around with those a few times. You may try those,
perhaps it helps a bit.
Another recommendation---as you do not supply analytic gradient, you may
want use
sure, here's a series of commands/outputs (using R 3.0.0):
x - letters[1:4]
y - foo
attributes(x)
NULL
attributes(x)[[y]] - bar
Error in attributes(x)[[y]] - bar : attributes must be a list or NULL
attr(x, y) - bar
attributes(x)
$foo
[1] bar
attributes(x)[[y]] - newbar
a) Please read the Posting Guide and post in plain text as it says to do. This
is an adjustment you must make in your email client software, we cannot advise
you how to do it here.
b) Not clear why you want a matrix. A vector is more typical in R; most of the
time using n*1 matrices is an
Thanks. I looks like my example worked because the value of the new
attribute had a length greater than 1. That difference in behavior
smells like a bug.
{ x - 1 ; attributes(x)[[attrName]] - 2012 ; str(x) }
Error in attributes(x)[[attrName]] - 2012 :
attributes must be a list or NULL
Hi David,
You are right in that Bray-Curtis is not suitable for my dataset, and that
my variables are very different. Given your suggestions, I am struggling
with how to transform or standardize my data given that they vary so much.
Additionally, looking at the dist() package I am not sure which
On Fri, May 10, 2013 at 01:33:34PM +0100, Meenu Chopra wrote:
Thanks to all
The main problem with ma linux system is that its not able to install any
software using sudo command.
like i used command yum search libX11 , it shown that yum is not installed
and when i use sudo apt-get install
Hi, you are very welcome!
I'm glad that it works now.
Irucka Embry
-Original Message-
From: Hiep [via R] [ml-node+s789695n4666747...@n4.nabble.com]
Sent: 5/10/2013 6:27:23 AM
To: iruc...@mail2world.com
Subject: Re: Re: Tranfer data from exel into R
Hi Irucka
it works now, thank you
Hi,
I've used R just a little bit, and I couldn't find an answer to my
questions via Web search.
I'm aware of Luke Tierney's byte code compiler for R, and the
compile package, and I have some questions about its use. I want to
take some R code, create byte code for it, and distribute it,
Hi,
i am tryng to run Bagging SVM but I have a problem. I do Bagging SVM based
on algoritm bagging Trees by Breiman. I get the following error and I think
I am wrong in calculating err.mean and err.vote. I also have difficulty in
making the plot.
library(e1071)
gendata -
On May 10, 2013, at 11:20 AM, Elizabeth Beck wrote:
This.
SODIUM K CL HCO3 ANION CA P GLUCOSE CHOLESTGGTGLDH CK AST
PROTEIN ALBUMIN GLOBULIN A_G UA BA CORTICO T3 T4 THYROID 145 3.3 102 24 22
2.9 2.45 9.8 5.7 3 3 678 5 34 15 19 0.79 180 6 70.97 1.31 12.77 0.102376
146 3.2
That's great thanks
--- Original Message ---
From: arun kirshna [via R] ml-node+s789695n4666758...@n4.nabble.com
Sent: May 10, 2013 3:34 PM
To: Tomos_D vampire_l...@hotmail.co.uk
Subject: Re: Return a vector in Fibonacci sequence function
Hi,
May be this helps:
fibv =function(n)
{
f1 = f2 = 1
Hi,
vec1-factor(rep(c(A,B,C),c(19,8,11)),levels=c(A,B,C))
sapply(split(vec1,vec1),length)
# A B C
#19 8 11
#or you could change gl() function
gl.new-function (n, k, labels = 1:n, ordered = FALSE) {
out- numeric()
for(i in 1:n){
out- append(out,rep(i,length.out=k[i]))
}
dear R experts:
I am contemplating the logic in R's lm() and summary(lm()) statements.
the reason is that I want to extend the functionality of lm to give
me both standardized coefficients and newey-west standard errors and
Ts. I have the code and can stick it at the end of the lm() function
On 13-05-10 1:21 PM, Paul A. Steckler wrote:
Hi,
I've used R just a little bit, and I couldn't find an answer to my
questions via Web search.
I'm aware of Luke Tierney's byte code compiler for R, and the
compile package, and I have some questions about its use. I want to
take some R
On 13-05-10 2:06 PM, William Dunlap wrote:
Thanks. I looks like my example worked because the value of the new
attribute had a length greater than 1. That difference in behavior
smells like a bug.
Yes, definitely looks like one. I'll submit the bug report; I hope
someone else will fix it.
I ended up wrapping my own new ols() function in the end. it is my
replacement for lm() and summary.lm. this way, I don't need to alter
internals. in case someone else needs it, it is included. of course,
feel free to ignore.
docs[[ols]] - c(Rd= '
@TITLE ols.R
@AUTHOR ivo.we...@gmail.com
You may want to use C++ instead using Rcpp which string handling would
be easier:
http://gallery.rcpp.org/articles/strings_with_rcpp/
On 10 May 2013 15:51, cgenolin cgeno...@u-paris10.fr wrote:
Hi the list,
I include some C code in a R function using .C. The argument is a character.
I find
Hello,
I am attempting to use the classInt package in conjunction with
rworldmap package in R to construct a chloropleth. I want to use the
fixedBreaks argument to specify given breaks.
My data look like this:
head(Maji)
Country waterused CC
1 Afghanistan 36
What does ww[[waterused]] have to do with Maji?
On Sat, May 11, 2013 at 10:07 AM, Smith Freeman smithifree...@gmail.com wrote:
Hello,
I am attempting to use the classInt package in conjunction with
rworldmap package in R to construct a chloropleth. I want to use the
fixedBreaks argument to
Hi,
dat1- read.table(text=
x1 x2 x3
a1 b2 2
a1 b4 4
a2 NA 3
NA b2 6
a3 b1 NA
a1 b2 9
a1 b2 NA
a1 b4 2
,sep=,header=TRUE,stringsAsFactors=FALSE)
dat2- dat1
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