Hi
My code looks like this
I have two parameters x and par1. X contains values and par1 contains the
function which i required to use
if par1 is max then output should be max(x).
FUN - match.fun(par1)
result=FUN(x)
Is it possible to incorporate the unique
I figured as much.
Thank you greatly.
plangfelder wrote
On Wed, Apr 18, 2012 at 7:25 PM, chuck.01 lt;CharlieTheBrown77@gt;
wrote:
Let say I have an object (I hope my terminology is correct) a
a - 12
a
[1] 12
And a has been assigned the number 12, or whatever
And lets say I have a
Dear R Users
I am maximizing a likelihood function it has two two correlated random
effects which follows bivariate normal distribution. To get the marginal
distribution I want to integrate out with respect to these two correlated
random effects. Does any body know how can I implement gaussian
Hi
Your question is rather cryptic. Why the output shall be 3? What has
unique count to do with match function?
Maybe you want something what is described in switch help.
See
?switch
Regards
Petr
Hi
My code looks like this
I have two parameters x and par1. X contains values and
Hi all,
I have some problems with the mle2 function
RogersIIbinom - function(N0,attackR3_B,Th3_B)
{N0-lambertW(attackR3_B*Th3_B*N0*exp(-attackR3_B*(24-Th3_B*N0)))/(attackR3_B*Th3_B)}
RogersII_B -
Dear Ben,
Thanks for your useful information. Now I know at least what I do not want
;-)
The sas-code that corresponds to what I want is:
proc nlmixed data=stab.BatchdataParameter ;
parms Ea=92 A0=93 A1=34.5 e=10 s2=10 A11=1 A12=1;
k=
I have got the following statement:
* overview.domains$sample.var - aggregate(migr$amigo.migr,
by=list(siruta=amigo$siruta), var)[,-1]/overview.domains$n.i.*
*Error in migr$amigo.migr : $ operator is invalid for atomic vectors*
What should i do to solve this error?
Thank you.
Kind regards,
Hello,
I am working under R2.11.0 Windows and I would like to ask you if you know a
way to save all warning messages obtained by the R function warning in a
file and keeping the functionalities of the base-function warning. For
example if I use external code, I don't want to replace all lines
Hi
I have a problem with passing line and symbol parameters to user
defined panel functions
I had a look at the archives and created a panel function on what was
shown and on panel.loess.
I could not to get panel.locfit to work for what I intend it for.
There is another layer to work with
Hello, I am working under R2.11 Windows and currently I work on a big R
progjet which executes different R script in a row. Every R script
represents a module. As every module depends of the variables created in the
modules previously executed, I want to be shure, that I don't create or
change a
Hi
I have a problem with passing line and symbol parameters to user
defined panel functions
I had a look at the archives and created a panel function on what was
shown and on panel.loess.
I could not to get panel.locfit to work for what I intend it for.
There is another layer to work with
Hi Alexander,
Saving full environments is possible, but it is very easy to start loosing
track on where each variable came from.
You might want to use this process:
http://www.r-bloggers.com/a-better-way-of-saving-and-loading-objects-in-r/
It depends on how many variables you work with, but it
Dear R users in Hong Kong,
Please join the HKRUG and we are organizing our 1st meeting.
https://groups.google.com/d/forum/hkrug
Thank you.
CH
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the
Le jeudi 19 avril 2012 à 09:34 +0300, Ana-Maria Dobre a écrit :
I have got the following statement:
* overview.domains$sample.var - aggregate(migr$amigo.migr,
by=list(siruta=amigo$siruta), var)[,-1]/overview.domains$n.i.*
*Error in migr$amigo.migr : $ operator is invalid for atomic vectors*
Hi Graeme,
We need more information, at the very least str(train) and better would be
enough of train included in your email using dput() that we could try your
code. It's likely that you do have missing data, or that your data are in the
wrong format.
Sarah
On Apr 18, 2012, at 7:46 PM,
Hi all,
I solved my problem:
The reason for the error was that my initial values were not correctly
chosen.
In the previous code:
nlme.model001epr - nlme(result ~ A0 * exp(- ( exp(A1) * exp(-Ea /
(0.0083144*TEMP.K)) * exp(eps)) * time),
data = Parameterg,
Hi all,
I would like to find the x position of an two asymptotes.
Here is a sample of what I would like to do:
x - seq(1, 153,, 153)
a - 85
m - 65
s =-1.5
fn - function (x, a, m, s) { a * (exp((m - x)/s) * (1/s))/((1 +
exp((m - x)/s)))^2 }
plot.deriv1 - fn(1:153, a, m, s)
I can find the
Thank you for the reply.
The more I look at this, the more confused I become. I was wondering if you
could walk me through this a little more in detail, in particular the panel
method function of doing things. It may be obvious to many, but I haven't
really used Trellis before, so I'm still at
On Apr 19, 2012, at 09:52 , Joachim Audenaert wrote:
Hi all,
I have some problems with the mle2 function
RogersIIbinom - function(N0,attackR3_B,Th3_B)
{N0-lambertW(attackR3_B*Th3_B*N0*exp(-attackR3_B*(24-Th3_B*N0)))/(attackR3_B*Th3_B)}
RogersII_B -
Thanks Brian. That worked. I also wanted to increase the size of the
'points' on the graph. Is there any way I can get rid of the 'legend' (in
this case '3') appearing on the plot?
=== code
library(ggplot2)
leaves - letters[1:8]
mat - matrix(sample(1:1000,32),nrow=16,ncol=2)
Dear Michael and Ista,
thank you very much for your answers!
Sorry, I think I wasn't clear about what I need. I will use an example to
explain it again:
I have imported the following data.frame with the following command using
the foreign package:
mz1-read.spss(myfile.sav,to.data.frame=T)
On Apr 19, 2012, at 4:41 AM, Katrina Bennett wrote:
Hi all,
I would like to find the x position of an two asymptotes.
Here is a sample of what I would like to do:
x - seq(1, 153,, 153)
a - 85
m - 65
s =-1.5
fn - function (x, a, m, s) { a * (exp((m - x)/s) * (1/s))/((1 +
exp((m - x)/s)))^2 }
You didn't say that your workflow involved going backwards and
forwards between SPSS and R.
Importing from legacy formats like SPSS .sav is well developed, with
additional resources from packages Hmisc (spss.get) and memisc
(spss.system.file) with, in the latter case, support for reading
subsets
Hi,
I want to prohibit the automatic collapsing of degenerate array indices:
str( array(1,dim=c(3,4,5,1,1)) )
num [1:3, 1:4, 1:5, 1, 1] 1 1 1 1 1 1 1 1 1 1 ...
str( array(1,dim=c(3,4,5,1,1))[2:3,1:3,4:5,,] )
num [1:2, 1:3, 1:2] 1 1 1 1 1 1 1 1 1 1 ...
The last command removed the degenerate
On 19/04/2012 9:14 AM, Sebastian Schubert wrote:
Hi,
I want to prohibit the automatic collapsing of degenerate array indices:
str( array(1,dim=c(3,4,5,1,1)) )
num [1:3, 1:4, 1:5, 1, 1] 1 1 1 1 1 1 1 1 1 1 ...
str( array(1,dim=c(3,4,5,1,1))[2:3,1:3,4:5,,] )
num [1:2, 1:3, 1:2] 1 1 1 1 1
On Apr 19, 2012, at 9:14 AM, Sebastian Schubert wrote:
Compare
str( array(1,dim=c(3,4,5,1,1))[2:3,1:3,4:5,,]
str( array(1,dim=c(3,4,5,1,1))[2:3,1:3,4:5,,,drop=FALSE] )
num [1:2, 1:3, 1:2, 1, 1] 1 1 1 1 1 1 1 1 1 1 ...
--
David Winsemius, MD
West Hartford, CT
On 19/04/12 15:25, Duncan Murdoch wrote:
On 19/04/2012 9:14 AM, Sebastian Schubert wrote:
Hi,
I want to prohibit the automatic collapsing of degenerate array indices:
str( array(1,dim=c(3,4,5,1,1)) )
num [1:3, 1:4, 1:5, 1, 1] 1 1 1 1 1 1 1 1 1 1 ...
str(
On Thu, Apr 19, 2012 at 2:55 AM, ce41188 stevelavr...@hotmail.com wrote:
Thank you for the reply.
The more I look at this, the more confused I become. I was wondering if you
could walk me through this a little more in detail, in particular the panel
method function of doing things. It may be
Thanks. I appreciate this isn't strictly an R question and will
pursue on another list.
The procedure I followed was inspired from
@article{
Author = {Baayen, R. Harald and Milin, Petar},
Title = {Analysing Reaction Times},
Journal = {International Journal of Psychological Research},
On Apr 19, 2012, at 9:38 AM, Sebastian Schubert wrote:
On 19/04/12 15:25, Duncan Murdoch wrote:
On 19/04/2012 9:14 AM, Sebastian Schubert wrote:
Hi,
I want to prohibit the automatic collapsing of degenerate array
indices:
str( array(1,dim=c(3,4,5,1,1)) )
num [1:3, 1:4, 1:5, 1, 1] 1 1
Hi all,
I have a polynomial (a big one) and I would like to find a root of it
between [-inf, -3] (it's known there is one root in this interval)...
How to find that root?
In using uniroot I need to supply the bounds
In using polyroot I need to write it in the strict sens polynomial
I think the OP is looking for the construct length(unique(x)) but not really
sure what the rest of the question is.
Michael
On Apr 19, 2012, at 2:12 AM, Petr PIKAL petr.pi...@precheza.cz wrote:
Hi
Your question is rather cryptic. Why the output shall be 3? What has
unique count to do
see below.
On Wed, Apr 18, 2012 at 2:39 PM, Hadley Wickham had...@rice.edu wrote:
If the students are in a science research class, does that mean they
have data from their own research that they would want to understand
better? I think that would be much more motivating than anything else.
hello,
I'm trying to improve the speed of my calculation but didn't get to a
satisfying result.
It's about the numerical Integration of a bivariate normal distribution.
The code I'm currently using
x -
qnorm(seq(.Machine$double.xmin,c(1-2*.Machine$double.eps),by=0.01),
mean=0,sd=1)
Dear All,
I need to estimate the level of similarity of two strings. For example:
string1 - c(depending,audience,research, school);
string2 - c(audience,push,drama,button,depending);
The words in string may occur in different order though. What function would
you recommend to use to estimate
Hi, Taisa,
It depends on many paramfactors, e.g. nature of your data, volume of data set
etc.
The analog of SAS fastclus in R - kmeans (for practical example check slide #35
here:
http://www.slideshare.net/whitish/textmining-with-r)
Check also kmedoids (pam) and hclust.
Good luck,
-Alex
My temporary solution to the problem is trace:
trace(warning,tracer=quote({
tmp-try(cat(paste(...),warning.log,append=TRUE,fill=TRUE))
if(is(tmp,try-error)){
print(sys.call())
print(unlist(...))
}
}))
with best regards
Alexander wrote
Dear List Members,
I am in the process of designing a study examining pay and performance
in Major League Baseball across several seasons, and before I get too
deeply into it, I'd like to ask whether the group members think that
performance across seasons is independent, or if it needs to be
On Apr 19, 2012, at 11:05 AM, N. S. Miceli, Ph.D. wrote:
Dear List Members,
I am in the process of designing a study examining pay and
performance in Major League Baseball across several seasons, and
before I get too deeply into it, I'd like to ask whether the group
members think that
Wrong list.This is R, not statistics (or linguistics?).Please post elsewhere.
-- Bert
On Thu, Apr 19, 2012 at 8:05 AM, Alekseiy Beloshitskiy
abeloshits...@velti.com wrote:
Dear All,
I need to estimate the level of similarity of two strings. For example:
string1 -
I also tried:
m1 - length(x)-1
X1- cbind(x[1:m1],x1[2:length(x)])
X2- cbind(x[1:m1],x1[2:length(x)])
integral - function(rho){
m1 - length(x1)-1
integral - apply(X2,1,function(y)
apply(X1,1,function(x)
Though if you do decide to use Levenstein, it's implemented here in R:
http://finzi.psych.upenn.edu/R/library/RecordLinkage/html/strcmp.html
I'm pretty sure this is in C code so it should be mighty fast.
Michael
On Thu, Apr 19, 2012 at 11:40 AM, Bert Gunter gunter.ber...@gene.com wrote:
Wrong
On Thu, Apr 19, 2012 at 2:30 AM, Duncan Mackay mac...@northnet.com.au wrote:
Hi
xyplot(y ~x|Farm,xx,
groups = Padd,
panel = panel.superpose,
panel.groups=function(x,y, ...){
panel.Locfit(x,y,...)
panel.xyplot(x,y,...)
Thank you, Michael,
Right, I m looking for R implementation of Leventstein or or any other similar
approaches. Will try it.
Thank you again!
-Alex
From: R. Michael Weylandt [michael.weyla...@gmail.com]
Sent: 19 April 2012 19:01
Cc: Alekseiy Beloshitskiy;
Alexander,
If Tal's suggestion to use caching in Sweave doesn't appeal to you, you
might look at 'R.cache' and other packages mentioned in
http://cran.r-project.org/web/views/ReproducibleResearch.html
under 'Caching of R Objects'.
However, an advantage of the Sweave-like approaches is that
Hello,
Could anyone recommend a package for multiple (i.e., structurally
linked) equation models for time-series cross-section data? I've been
using the plm package for single-equation, fixed effects models, but
have not been able to find a package with similar functionality for
models with
Hi David, thanks for the reply.
This is not a homework problem, although it may sound like one :) I
was trying to provide a reproducible example of what I am trying to
do.
The problem is something I am trying to work on for my PhD program.
I've been using the nls() function to derive a
There is an ASA section on statistics in sports, you might start
looking there...
http://www.amstat.org/sections/sis/
albyn
On Thu, Apr 19, 2012 at 10:05:39AM -0500, N. S. Miceli, Ph.D. wrote:
Dear List Members,
I am in the process of designing a study examining pay and
performance in
On Thu, Apr 19, 2012 at 08:59:34AM -0500, Michael wrote:
Hi all,
I have a polynomial (a big one) and I would like to find a root of it
between [-inf, -3] (it's known there is one root in this interval)...
How to find that root?
In using uniroot I need to supply the bounds
Hi.
Is
Thanks for the help, Don. Lots of good suggestions there. Unfortunately, I'm
still not able to access the data object. Still looking for a solution. Here's
the error I'm getting when I try your suggestion:
[1] res.Callus.Explant res.Callus.Regen res.Explant.Regen
all.comps -
I think that instead of:
obj = all.comps[[i]];
you should have
obj - get(all.comps[i])
Test out your programs step by step manually. Use the 'all.comps'
object and see what happens with the various indexing modes. This is
debugging 101.
On Thu, Apr 19, 2012 at 1:01 PM, Vining, Kelly
you should also look at Bioconductor Package Biostrings
hth
Matthias
Am 19.04.2012 18:01, schrieb R. Michael Weylandt:
Though if you do decide to use Levenstein, it's implemented here in R:
http://finzi.psych.upenn.edu/R/library/RecordLinkage/html/strcmp.html
I'm pretty sure this is in C code
Does anyone know how to find the number of observations and groups used
in a mixed model with gee package?
The summary function in gee package does not provide this information.
e.g.
data(warpbreaks)
summary(gee(breaks ~ tension, id=wool, data=warpbreaks,
corstr=exchangeable))
I much
On Apr 19, 2012, at 16:08 , juliane0212 wrote:
hello,
I'm trying to improve the speed of my calculation but didn't get to a
satisfying result.
It's about the numerical Integration of a bivariate normal distribution.
The code I'm currently using
x -
This looks like a correct correction.
Thanks
-Don
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 4/19/12 10:14 AM, jim holtman jholt...@gmail.com wrote:
I think that instead of:
obj = all.comps[[i]];
you should have
obj
Folks:
I'm trying to port some code from python over to R, and I'm running into a
wall finding R code that can solve a generalized eigenvalue problem
following this function model:
http://docs.scipy.org/doc/scipy/reference/generated/scipy.linalg.eig.html
Any ideas? I don't want to call python
There are numerous tools like scons, make, ruffus, ant, rake, etc.
that can be used to build complex pipelines based on task
dependencies. These tools are written in a variety of languages, but
I have not seen such a thing for R. Is anyone aware of a package
available? The goal is to be able to
I'm trying to plot smooth trend using smoothTrend in OpenAir but I'm having
problems.
I used the following code.
-
#Set my working dir to the dir with my files
setwd(c:/R)
#Load the openair library
library(openair)
Sean Davis sdavis2 at mail.nih.gov writes:
There are numerous tools like scons, make, ruffus, ant, rake, etc.
that can be used to build complex pipelines based on task
dependencies. These tools are written in a variety of languages, but
I have not seen such a thing for R. Is anyone aware
peter dalgaard pdalgd at gmail.com writes:
On Apr 19, 2012, at 09:52 , Joachim Audenaert wrote:
Hi all,
I have some problems with the mle2 function
RogersIIbinom - function(N0,attackR3_B,Th3_B)
{N0-lambertW(attackR3_B*Th3_B*N0*exp(-attackR3_B*(24-Th3_B*N0)))/
Determining what is an outlier is complicated regardless of the tools
used (this is a philosophical issue rather than an R issue). You need
to make some assumptions and definitions based on the science that
produces the data rather than the data itself before even approaching
the question of
I was able to get the plot by converting the dates in the date column to
dates, e.g.,
mytable-read.csv(MCNP-pH.csv)
newdate-with(mytable,strptime(date,%m/%d/%Y))
mytable$date-newdate
smoothTrend(mytable, pollutant = pH)
Clint BowmanINTERNET: cl...@ecy.wa.gov
Air
Hi ,
I am writing some code to evaluate a price of an option with heston model.
My problem is that i need one variable to be generic .
Hestonf = function(phi,kappa,theta,sigma,rho,v0,r,T,s0,type)
{
if (type == 1)
{
u = 0.5;
b = kappa-rho*sigma;
}
else {
u = 0.5;
I am learning five mlogits as follows
v1.model-mlogit(v1~1|v2+v3+v4+v5, data=mlogit.v1.data, reflevel=1)
v2.model-mlogit(v2~1|v1+v3+v4+v5, data=mlogit.v2.data, reflevel=1)
v3.model-mlogit(v3~1|v1+v2+v4+v5, data=mlogit.v3.data, reflevel=1)
v4.model-mlogit(v4~1|v1+v2+v3+v5, data=mlogit.v4.data,
I have data in the following list format:
USER,VARIABLE,COUNT
user1, var1, 3
user1, var2, 4
user2, var1, 7
userN, var12, 5
And would like to have it format as a matrix:
var1var2var12
user1 3 4
user2 7
userN
I am new to R, and I have been running into the following situation
when I mistype a variable name in some code:
list1 - list( a=1, b=2 )
list2 - list( a=1 )
list2$b - list1$c
list2
$a
[1] 1
I would think at the point where I am trying to reference a field
called c -- that does not exist --
I need to perform 1 T tests
#I have two populations with different means
Popc1-rnorm(10,10,2)
Popc2-rnorm(10,8,2)
#I created two sets of samples - each set has 1 samples, and I made a
matrix of 20 rows and 1 columns to fit the data
sampc1-matrix(,20,1)
for(j in
Hello,
#I wrote a blank matrix with 1 row and 1 columns.
Why not a vector? (It would be a column vector, which might not fit your
needs.)
And though not really a problem, the matrix is called 't', the name of R's
transpose function.
I can become confusing, maybe you could call it 'tstat'
I need to perform 1 T tests
#I have two populations with different means
Popc1-rnorm(10,10,2)
Popc2-rnorm(10,8,2)
#I created two sets of samples - each set has 1 samples, and I made a
matrix of 20 rows and 1 columns to fit the data
sampc1-matrix(,20,1)
for(j in
Dear R-users,
I have a large data file that I am trying to read in R where the file has a
white space at the begging and at random places. The whitespace is actually
NA so I am trying to read the file using scan but with no success!! Please
help
Here are some example rows from the data file.
Hello,
arunkumar wrote
Hi
My code looks like this
I have two parameters x and par1. X contains values and par1 contains the
function which i required to use
if par1 is max then output should be max(x).
FUN - match.fun(par1)
result=FUN(x)
Is it
I forgot to say that the models for v2 and v5 worked fine on a smaller
dataset, but gave me this error on a larger dataset.
Thanks
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
I need to perform 1 T tests
#I have two populations with different means
Popc1-rnorm(10,10,2)
Popc2-rnorm(10,8,2)
#I created two sets of samples - each set has 1 samples, and I made a
matrix of 20 rows and 1 columns to fit the data
sampc1-matrix(,20,1)
for(j in
Hi
thank you for your suggestions, but I am not sure if I explained my problem
well enough. Lets asume, that I have 30 different script files and 1 script
which calls these 30 scripts one after the other by source. Some of the 30
scripts only contain definitions of functions which are called in
Use matrix subsetting like this:
x - matrix(1:9,3)
rownames(x) - letters[1:3]
colnames(x) - LETTERS[1:3]
print(x)
usrs - c(a,b,a)
vars - c(C,C,A)
counts - c(10,11,12)
x[cbind(usrs, vars)] - counts
print(x)
Hope this helps,
Michael
On Thu, Apr 19, 2012 at 1:48 PM, Tim Stutt
I am trying to implement an ANOVA on a pair of quantile regression models in
R. The anova.rq() function performs a basic check to see whether the models
are nested, but I think this check is failing in my case. I think my models
are nested despite the anova.rqlist() function saying otherwise. Here
There's something in your data that makes the model computationally
singular when you take the various subsettings... Can you provide a
small reproducible example so we can help narrow it down? It looks
like you're using different data for each mlogit though so I'm not
sure how the comparison that
It looks like you might want to use read.fwf for fixed width files
Michael
On Thu, Apr 19, 2012 at 3:45 PM, John S john.smith...@gmail.com wrote:
Dear R-users,
I have a large data file that I am trying to read in R where the file has a
white space at the begging and at random places. The
Almost always when people ask this question (it and its answer are FAQ
7.21) it is because they want to do things the wrong way (just don't
know there is a better way).
The better way is to put the variables that you want to access in this
way into a list, then you can easily access the objects
On Apr 19, 2012, at 1:48 PM, Tim Stutt wrote:
I have data in the following list format:
USER,VARIABLE,COUNT
user1, var1, 3
user1, var2, 4
user2, var1, 7
userN, var12, 5
And would like to have it format as a matrix:
var1var2var12
user1 3
Hi,
I have a three dimensional array, e.g.,
my.array = array(0, dim=c(2,3,4), dimnames=list( d1=c(A1,A2),
d2=c(B1,B2,B3), d3=c(C1,C2,C3,C4)) )
what I would like to get is then a dataframe:
d1 d2 d3 value
A1 B1 C1 0
A2 B1 C1 0
.
.
.
A2 B3 C4 0
I'm sure there is one function to do this
Thank you for the idea with caching...
Alexander
Alexander wrote
Hi
thank you for your suggestions, but I am not sure if I explained my
problem well enough. Lets asume, that I have 30 different script files and
1 script which calls these 30 scripts one after the other by source.
Some
On Apr 19, 2012, at 3:46 PM, Emmanuel Levy wrote:
Hi,
I have a three dimensional array, e.g.,
my.array = array(0, dim=c(2,3,4), dimnames=list( d1=c(A1,A2),
d2=c(B1,B2,B3), d3=c(C1,C2,C3,C4)) )
what I would like to get is then a dataframe:
d1 d2 d3 value
A1 B1 C1 0
A2 B1 C1 0
.
Comment (caveat emptor):
If I understand correctly, your difficulties all stem from your use of
the word script, which betrays a fundamental misunderstanding of the
nature of R as a programming language.
R is based (mostly) on the concepts of functional programming. So
instead of doing what as
OK, it seems that the array2df function from arrayhelpers package does
the job :)
On 19 April 2012 16:46, Emmanuel Levy emmanuel.l...@gmail.com wrote:
Hi,
I have a three dimensional array, e.g.,
my.array = array(0, dim=c(2,3,4), dimnames=list( d1=c(A1,A2),
d2=c(B1,B2,B3),
library(plyr)
adply(my.array,1:3)
HTH,
baptiste
On 20 April 2012 08:46, Emmanuel Levy emmanuel.l...@gmail.com wrote:
Hi,
I have a three dimensional array, e.g.,
my.array = array(0, dim=c(2,3,4), dimnames=list( d1=c(A1,A2),
d2=c(B1,B2,B3), d3=c(C1,C2,C3,C4)) )
what I would like to get is
Thanks Don and Jim,
Get did the trick! That command is new to me, and is exactly what this
problem needed. The syntax that worked is actually slightly simpler than what
was suggested. This is what worked:
all.comps - ls(pattern=^res)
for(i in all.comps){
obj = get(i);
...
Thanks again.
Friends
I clearly donot understand how sapply and vapply work.
What I have is a function that returns a matrix with an indeterminate
number of rows (some times zero) but a constant number of columns. I
cannot reliably use an apply function to assemble the matrices into a
matrix. I am not sure
Thank you for your response. Each v can take a a value from 1 to 100.
Input data subset: v1.data
v1 v2 v3 v4 v5
1 1591 5152
2 1591783
3 1591 4611
4 1991 8411
5 1591 31 4
6
I found out that this error means there is an underflow that is not handled
by the default solve. The suggested solution is to use qr.solve() or svd
instead of default.solve().
How can I modify mlogit to use qr.solve() instead of solve.default()?
Thanks
On Thu, Apr 19, 2012 at 2:10 PM, geek
Hi ilai
Thank you for your suggestions.
I do not know what happened yesterday I must have omitted a few
changes out in going from R to email
and apologies for the double posting - I had troubles sending it as
my ISP gave a message of not being connected for email but was for the web
I was
On 12-04-19 3:11 PM, harry mamaysky wrote:
I am new to R, and I have been running into the following situation
when I mistype a variable name in some code:
list1- list( a=1, b=2 )
list2- list( a=1 )
list2$b- list1$c
list2
$a
[1] 1
I would think at the point where I am trying to reference a
shameless self-plug: we break out of R to do this, and after many painful
years developing and maintaining idiosyncratic Makefiles, we are now using
Taverna to (visually) glue together UNIX commands (including R scripts) --
the benefits of which (over make and brethren) is that you can actually
Dear helpers,
is there any possible that transition (in depmixS4) is in scale of two
variable, e.g transition=~scale(x1,x2)?
If it can be, how transition of two variable (covariate time) can be worked
in depmixS4-hidden markov model for time series.
Many thanks,
nglthu
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View this message in
Dear R Help,
Sorry I wasn't more clear before. Here is another crack at this.
What I am still trying to do is estimate the point on a line when the
slope changes or asymptotes. I have found some similar postings
talking about this but no answers.
Hi all,
I found that the PCA gave chaotic results when there are big changes in a
few data points.
Are there improved versions of PCA in R that can help with this problem?
Please give me some pointers...
Thank you!
[[alternative HTML version deleted]]
If you read the help, it talks about compiling vectors into matrices, or
scalars into vectors. It does not say anything about combining matrices.
For the error about 14 elements, you should keep in mind that matrices are just
vectors with dim attributes that indicate how the linear memory is to
i used itsmr package ,
want to forecast AR model calculate R square to judge my
forecasting/prediction ,that is it good or not ?
i take original model(i)make example/demo model(j) ( 20 numbers less
from original model)
#AR model forecasting
i-read.table(file.choose(),skip=1) #taking times
Hi
I'm using the dbwrite to insert a large dataset. There are about 10 million
rows. But i'm not able to load the records.
Please can anyone tell me the way to load or maximum number of records that
dbwrite does. so that i can load it in batches
-
Thanks in Advance
Arun
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This doesn't sound like a question we can answer for you, as it would likely
depend on your RAM, virtual memory, OS, and other processes. I would be willing
to bet you can load one record at a time. You already know that ten million
won't work. Why don't you read
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