Is there a R package or function that will multiple an arbitrary number of
matrices supplied to it, preferably optimizing the sequence
R_function(matA, matB, matC, matD,)
return matA %*% matB %*% matC %matD %
and optimizing wether it is better to do A(BC) or (AB)C ?
Thanks,
Hello,
I have heard that Chrome OS is Linux based, so I am wondering if there is
anyway to use R on a Google Chromebook using one of your Linux packages. If
not, do you plan on making a version of R that is compatible with
chromebooks or cloud based?
[[alternative HTML version deleted]]
Hi,
I have the following problem in simulating samples from a bivariate
exponential distribution with the following construction:
Start with three independent exponential random variables say W1,W2 and W3
with intensity parameters lambda 1, lambda 2 and lambda 3 respectively.
Now I construct a
Hello R experts,
I need a help to create a subset file. I know with subset comand, its very
easy to select many different columns, or threshold. But here I have a bit
problem as in my data file is big. And I don't want to identify the column
numbers
or names manually. I am trying to find any
Hello,
I am performing a panel model and I have an error. In fact, I would like to
set up the pooling model and I have an error message. Any help
poolplm(panel$lexportijt~ldistit+lpopit+lpopjt+lpibit+lpibjt+lpibcit+lpibc
Hello,
You could try something like the following.
The example below assumes your data.frame is named 'dat'
cnums - grep(Peak\\.Area, colnames(dat))
subdat - dat[cnums]
See ?regexp for the regular expressions used by ?grep.
Hope this helps,
Rui Barradas
Em 16-06-2013 08:20, Suparna Mitra
Supposed your data.frame is called x, try
x[ which( substr( colnames( x ), 1, 4 ) == Peak ) ]
On Sunday 16 June 2013 15:20:37 Suparna Mitra wrote:
Hello R experts,
I need a help to create a subset file. I know with subset comand, its very
easy to select many different columns, or threshold.
You should probably try to study a bit more about what ChromeOS is about before
asking questions like that. The real question you should have asked is whether
R is offered as SAAS in the cloud. (I don't think so.) You can setup an
instance of Linux in the cloud and run R there. RStudio Server
Le dimanche 16 juin 2013 à 09:05 +0200, Guylaine NOUWOUE a écrit :
Hello,
I am performing a panel model and I have an error. In fact, I would like to
set up the pooling model and I have an error message. Any help
poolplm(panel$lexportijt~ldistit+lpopit+lpopjt+lpibit+lpibjt+lpibcit+lpibc
On Sat, Jun 15, 2013 at 1:45 AM, David Winsemius dwinsem...@comcast.net wrote:
On Jun 14, 2013, at 1:25 PM, Bert Gunter wrote:
For the record:
...
A bit of commentary: Something did happen. It's just that you didn't do
anything with _what_ happened. The copy of the
On 16.06.2013 04:35, G Vishwanath wrote:
Is there a R package or function that will multiple an arbitrary number of
matrices supplied to it, preferably optimizing the sequence
R_function(matA, matB, matC, matD,)
return matA %*% matB %*% matC %matD %
and optimizing wether it
This looks like a homework problem, and has no R question in it.
If it is homework, ask your professor or fellow students for help.
If not, and you have a question about R, please post that.
On Jun 15, 2013, at 8:17 PM, INDRANIL GHOSH jamesbond.indra...@gmail.com
wrote:
Hi,
I have the
jickngea alexand jickneba at yahoo.ie writes:
Hi everyone,
I am new with spatial data analysis in R and I'm
not able
to read a shape because of this error message but the shapefile is in my
work directory. Here are my
commands; ogrLireadstLayers(border.shp),
On Jun 16, 2013, at 3:42 AM, ce wrote:
I can't install rugarch package because installation of nloptr package fails .
I use opensuse 12.3
# uname -a
Linux candide 3.7.10-1.11-desktop #1 SMP PREEMPT Thu May 16 20:27:27 UTC 2013
(adf31bb) x86_64 x86_64 x86_64 GNU/Linux
my gcc version is
Hi
Has anyone tried to fit a thin plate spine to a triangular plot before? I'm
having trouble working out a piece of code to make it possible with three axes.
I have done it before with two axes.
I've found a package I prefer that makes triangular plots (plotrix) using the
triax.plot()
On Jun 16, 2013, at 7:39 AM, Rapkin, James wrote:
Hi
Has anyone tried to fit a thin plate spine to a triangular plot before? I'm
having trouble working out a piece of code to make it possible with three
axes.
Only two axes in a triangular plot are independent.
I have done it before
Thanks *VERY* much, this is great!
I realized a few more cases, I think I've got something that
covers all the possibilities now:
library(stringr)
tmpstr = The first number is: 32. Another one is: 32.1.
Here's a number in scientific format, 0.3523e10, and
another, 0.3523e-10, and a
Hi,
This gives me more combinations than you got with SAS. Also, this selects the
one with minimum dimension between duplicates.
final3New-read.table(file=real_data_cecilia.txt,sep=\t,header=T)
final3New1-read.csv(real_data_cecilia_new.csv)
fun3- function(dat){
Dear R-users,
I am trying to integrate a function using integrate command in R.
The function is as follows,
integrand
function(x,a)
{
exp(-0.5*a*(1+x^2))/(1+x^2)
}
Now while I want to integrate it using the command integrate, I get the
following error,
integrate(integrand(x,2),0,inf)
Error
On Jun 16, 2013, at 6:46 PM, cassie jones wrote:
Dear R-users,
I am trying to integrate a function using integrate command in R.
The function is as follows,
integrand
function(x,a)
{
exp(-0.5*a*(1+x^2))/(1+x^2)
}
Now while I want to integrate it using the command integrate, I get
On Jun 16, 2013, at 7:15 PM, David Winsemius wrote:
On Jun 16, 2013, at 6:46 PM, cassie jones wrote:
Dear R-users,
I am trying to integrate a function using integrate command in R.
The function is as follows,
integrand
function(x,a)
{
exp(-0.5*a*(1+x^2))/(1+x^2)
}
Now while I
Hi David,
Thank you so much.
-Cassie
On Sun, Jun 16, 2013 at 9:19 PM, David Winsemius dwinsem...@comcast.netwrote:
On Jun 16, 2013, at 7:15 PM, David Winsemius wrote:
On Jun 16, 2013, at 6:46 PM, cassie jones wrote:
Dear R-users,
I am trying to integrate a function using
On Sun, Jun 16, 2013 at 9:00 PM, Nick Matzke mat...@berkeley.edu wrote:
Thanks *VERY* much, this is great!
I realized a few more cases, I think I've got something that covers all the
possibilities now:
library(stringr)
tmpstr = The first number is: 32. Another one is: 32.1. Here's a
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