dhacademic at gmail.com dhacademic at gmail.com writes:
Hi,
I am a beginner of R. There is a question about constraint minimization. A
function, y=f(x1,x2,x3x12), needs to be minimized. There are 3
requirements for the minimization:
(1) x2+x3+...+x12=1.5 (x1 is excluded);
(2)
Hi Josh and David,
Problem solved.
Both following steps work.
1)
ToothGrowth
attach(ToothGrowth)
plot(dose,len) # this step is needed. Don't close the diagram. Otherwise
following command won't work.
matrics=lm(len~dose)
abline(matrics)
Graph displayed
2)
ToothGrowth
On Fri, Nov 19, 2010 at 07:22:57PM -0800, wangwallace wrote:
actually, what I meant is to draw two random numbers from each row
separately to create a new data frame. for example, an example output could
be:
1 3
4 5
9 8
This may be done, for example
X - matrix(1:9, ncol = 3, byrow =
Hi folks,
Please advise where can I down free data files for learning R? Google search
brought me many, not easy for to screen. TIA
B.R.
Stephen L
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read
Type data() to list the numerous example data sets included with the
standard R distribution.
Michael
On 20 November 2010 20:42, Stephen Liu sati...@yahoo.com wrote:
Hi folks,
Please advise where can I down free data files for learning R? Google search
brought me many, not easy for to
Hi Michael,
Thanks for your advice.
data() only displays a list of files. Is there an easy to show the brief
summary of files rather than calling each file.
Besides I need the files on Excel format/extension. Where can I find them?
TIA
B.R.
Stephen L
- Original Message
From:
On 20 November 2010 20:57, Stephen Liu sati...@yahoo.com wrote:
Hi Michael,
Thanks for your advice.
data() only displays a list of files. Is there an easy to show the brief
summary of files rather than calling each file.
What sort of summary do you want ? The data() command should display
Hello,
Let's assume that one has a list:
my.list - list(a=c(1,2,3,4),b=4,c=c(1:7))
I want to save my.list as a matrix in .txt file. Because of different
length we can put NA or 0.
Effect (row.names a, b and c are not necessary)
a 1 2 3 4 0 0 0
b 4 0 0 0 0 0 0
c 1 2 3 4 5 6 7
How to do it?
Hi all,
I got the
chfactor.c, line 130: singular matrix in function LDLfactor()
Error in predict.gstat(g, newdata = newdata, block = block, nsim = nsim, :
LDLfactor
Error, probably because there are some point pairs with zero distance in the
matrix. My question is, how can i delete
R doesnot have a 1 million or two million users (thats an Urban legend
thanks to Vance NYT article)
. The exact number is not proven and estimated by a variety of
association by proxy methods. It could be as low as 5,00,000 or as
many as 5 million users. It's like speculating which private
Federico,
as far as I understand Kalman filter works under gaussian conditions, and for
this reason it is not implemented. (I have to admit that I do not know the
sspir package)
hope this helps, and correct me if I am wrong
Best regards
Stefano Sofia PhD
On 11/17/2010 11:49 AM, feder wrote:
Hi Mohamed,
It works. Thank you very much.
Best,
Robert
2010/11/20 mohamed.laj...@inserm.fr:
Hi Robert,
Try to do this
Len - max(sapply(my.list, length))
fun1 - lapply(my.list, function(x){
c(x, rep(0, Len))[1:Len]
})
do.call(rbind, fun1)
M
Regards
I'm very new to R and modeling but need some help with visualization of glms.
I'd like to make a graph of my glms to visualize the different effects of
different parameters.
I've got a binary response variable (bird sightings) and use binomial glms.
The 'main' response variable is a measure of
Try this also:
t(sapply(my.list, '[', seq(max(sapply(my.list, length)
On Sat, Nov 20, 2010 at 9:06 AM, Robert Ruser robert.ru...@gmail.comwrote:
Hello,
Let's assume that one has a list:
my.list - list(a=c(1,2,3,4),b=4,c=c(1:7))
I want to save my.list as a matrix in .txt file. Because
Hi all,
I was trying to run the latest version of RCurl on windows 7 with R 2.12 and
got a missing libeay32.dll error.
I now downloaded such a file from here:
http://code.google.com/p/aion-inside/source/browse/trunk/out/libeay32.dll?spec=svn10r=10
And placed it in the system32 folder.
Now I get
Hi everyone,
I've just installed Linux (K)Ubuntu 10.10 as well as R and I'm stuck
with a very annoying problem.
I've compiled the latest R version from the sources without any
problem, sadly when I start R in a terminal, it does not behave as
expected. In fact, I cannot use the arrow keys (up,
Date: Sat, 20 Nov 2010 12:29:55 +0100
From: matevz.pav...@gi-zrmk.si
To: r-sig-ecol...@r-project.org; r-sig-...@stat.math.ethz.ch;
r-help@r-project.org
Subject: [R] Zerodist
Hi all,
I got the
chfactor.c, line 130: singular matrix in
Hi Maximilien,
On 11/20/2010 01:51 PM, Maximilien Renard wrote:
I've just installed Linux (K)Ubuntu 10.10 as well as R and I'm stuck
with a very annoying problem.
I've compiled the latest R version from the sources without any
problem, sadly when I start R in a terminal, it does not behave as
Thank you for your very quick answers !
In fact, re-compiling it with readline support did the trick.
Have a nice day!
Maximilien
On 20 November 2010 14:08, Tobias Verbeke
tobias.verb...@openanalytics.eu wrote:
Hi Maximilien,
On 11/20/2010 01:51 PM, Maximilien Renard wrote:
I've just
Hello,
I've been trying to install the fBasics package on an openSuSe 11.3
64bit machine.
It gives an error saying:
WARNING: *R* *include* *directory* *is* *empty* -- *perhaps* *need* *to*
*install* *R*-*devel*.*rpm* *or* similar
Yet, R-devel is installed. Other packages work fine. I also tried
I'm very new to R and modeling but need some help with visualization of glms.
I'd like to make a graph of my glms to visualize the different effects of
different parameters.
I've got a binary response variable (bird sightings) and use binomial glms.
The 'main' response variable is a measure of
Dear list,
I have just started to use roxygen and cannot find out how to specify NOT RUN
examples.
I know that to include R code examples works via the @examples tag followed by
the code.
Without roxygen, if I want R code not to be run when processing the .Rd files I
would include the
In the following example I would like to have the color transition from
Red-yellow-green in the image(...) function, and if possible have the yellow
be set to correspond with the mean value (for the below 75).
I was able to figure something like out when using filled.contour(...), e.g.
On 20/11/2010 8:53 AM, Jason Rupert wrote:
In the following example I would like to have the color transition from
Red-yellow-green in the image(...) function, and if possible have the yellow
be set to correspond with the mean value (for the below 75).
You can get the colour transition using
On 20 November 2010 at 14:16, Maximilien Renard wrote:
| Thank you for your very quick answers !
|
| In fact, re-compiling it with readline support did the trick.
Good but you may still want to read
http://cran.r-project.org/bin/linux/ubuntu
as there is no reason to rebuild the package
Hello everyone.
I am using ggplot and I need some help to merge these two plots into one.
plot_CR-function(x,y,agentid,CRagent){
library(ggplot2)
agent-CRagent[[agentid]] # To make following expression shorter
ggplot((data.frame(x=CRX,y=CRY,sr=agent$sr)))+
Dear R users:
How to calculate the sample size with ANCOVA? For example, in a
clinical trial, the correlation between the baseline and one-year follow-up
blood pressure is 0.7, with a standrad devision 15, in order to detect a 10
difference between baseline and follow-up with a power =
On Nov 20, 2010, at 8:31 AM, XINLI LI wrote:
Dear R users:
How to calculate the sample size with ANCOVA? For example, in a
clinical trial, the correlation between the baseline and one-year follow-up
blood pressure is 0.7, with a standrad devision 15, in order to detect a 10
On Nov 20, 2010, at 4:27 AM, Sonja Klein wrote:
I'm very new to R and modeling but need some help with visualization
of glms.
I'd like to make a graph of my glms to visualize the different
effects of
different parameters.
I've got a binary response variable (bird sightings) and use
On 11/19/2010 11:42 PM, Greg Snow wrote:
Often when things look to small/thin it is because the plot is being created at
too large a size, then shrunk.
How are you creating the graph? How are you transferring it?
Try creating the graph at the exact size that it will be when used in the
Hi:
Perhaps a plus sign at the end of the line before geom_tile() would help.
Dennis
On Sat, Nov 20, 2010 at 6:30 AM, Alaios ala...@yahoo.com wrote:
Hello everyone.
I am using ggplot and I need some help to merge these two plots into one.
plot_CR-function(x,y,agentid,CRagent){
Hi folks,
Whether I need following package to export R data to Excel spreadsheet and to
import .xls file to R?
xlsReadWrite
http://www2.warwick.ac.uk/fac/sci/moac/degrees/modules/ch923/r_introduction/excel_in_r/
TIA
B.R.
Stephen L
__
On Sat, Nov 20, 2010 at 10:53 AM, Stephen Liu sati...@yahoo.com wrote:
Whether I need following package to export R data to Excel spreadsheet and to
import .xls file to R?
xlsReadWrite
http://www2.warwick.ac.uk/fac/sci/moac/degrees/modules/ch923/r_introduction/excel_in_r/
Yes, you can use
Hi,
It's just that i have few points with the same coordinates and i would like to
get riid of the duplicates so that Kriging would work.
Thanks, m
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the
I just found out myself:
Just use the commands you would use in the normal .Rd files aftter the
@examples tag in roxygen
(i.e. @examples dontrun{ some r examples }
Here comes a small roxygen docu example with an example that is NOT RUN.
On Nov 20, 2010, at 11:18 AM, Matevž Pavlič wrote:
Hi,
It's just that i have few points with the same coordinates and i
would like to get riid of the duplicates so that Kriging would work.
?duplicate
?unique
--
David Winsemius, MD
West Hartford, CT
On Nov 20, 2010, at 11:23 AM, David Winsemius wrote:
On Nov 20, 2010, at 11:18 AM, Matevž Pavlič wrote:
Hi,
It's just that i have few points with the same coordinates and i
would like to get riid of the duplicates so that Kriging would work.
?duplicate
Er, rather:
?duplicated
Hi,
I need some help either in how to configure variables for wireframe(),
or some suggestions as to other graphics commands to use for plotting a
2-D manifold in 3-D space.
Here is an example I tried (in the hopes that it would plot a helical
line) :
xsp-matrix(c(cos(seq(0,80)/5)),9,9)
Hi Gabor
Thanks for your advice and URL
Win 7 64 bit
login as user
I found following script:-
[R] Excel Export in a beauty way
https://stat.ethz.ch/pipermail/r-help/2009-June/200607.html
Ran the script on R. After finish executed:-
export.xls(iris)
It seemed creating iris.xls on the fly.
Hi,
I have been unable to find how to go about changing the significance level
in R for hypothesis testing and regression analysis. R has a default setting
to alpha=95% (a significance level of 95%), but I want to be able to
decrease or increase this level when necessary. If you could give me
Sorry for the unclear description in my last post. It is an error in my last
post, that x4 should be in the range of [-1, 0] as it is identical to x1.
Actually I think both constraint (for the requirement 1 and 2, so there
are only 9 variables) and bounded (for the requirement 3) opt are needed
Hi:
Here's an example stolen out of the scatterplot3d package vignette (p. 9):
library(scatterplot3d)
z - seq(-10, 10, 0.01)
x - cos(z)
y - sin(z)
scatterplot3d(x, y, z, highlight.3d = TRUE, col.axis = 'blue',
col.grid = 'lightblue', main = 'Helix', pch = 20)
HTH,
Dennis
On Sat,
I may be missing something, but the results of lm just give you a
p-value and then you are in charge of setting a significance level.
And as for hypothesis testing- like t-tests you are also in charge of
the significance level. Am I missing something?
On Sat, Nov 20, 2010 at 10:41 AM, Daniel
Thanks for the advise.
I tried predict but no matter what I do I always get an error message saying
that the 'x' and 'y' differ in length. Most of my variables are also not
categorical but continous of which I'm not sure how to deal with.
R procedure of a simplified model with categorical
On Nov 20, 2010, at 12:22 PM, Sonja Klein wrote:
Thanks for the advise.
I tried predict but no matter what I do I always get an error
message saying
that the 'x' and 'y' differ in length. Most of my variables are also
not
categorical but continous of which I'm not sure how to deal with.
On Nov 20, 2010, at 11:41 AM, Daniel Carawan wrote:
Hi,
I have been unable to find how to go about changing the significance
level
in R for hypothesis testing and regression analysis. R has a default
setting
to alpha=95% (a significance level of 95%), but I want to be able to
decrease or
On 19.11.2010 21:43, Kjetil Halvorsen wrote:
This is very strange. (Debian squeeze, R 2.12.0 compiled from source)
I did some moderately large computation (including svd of a 560x50 matrix),
running a few minutes, and R memory increasing to about 900MB on this
2 GB ram laptop. I had done
On 18.11.2010 08:04, Yulia Arzhaeva wrote:
Dear all,
Since version R-2.12.0, I've got problems building an add-on package for R
(imglib here) for 32-bit Windows.
The following command is called:
C:\Program Files\R\R-2.12.0\bin\i386\Rcmd build --binary imglib
And here is an error I am
On 18.11.2010 11:30, skan wrote:
Hello everybody.
My question arised from the output of lattice's histogram. But might be
extended to any other object that could be printed.
I think I've understood your answers, print calls the plot function when
the object to be printed is a trellis plot
On 20.11.2010 14:24, Jan Gairing wrote:
Hello,
I've been trying to install the fBasics package on an openSuSe 11.3
64bit machine.
It gives an error saying:
WARNING: *R* *include* *directory* *is* *empty* -- *perhaps* *need* *to*
*install* *R*-*devel*.*rpm* *or* similar
Yet, R-devel is
Date: Sat, 20 Nov 2010 18:45:42 +0100
From: lig...@statistik.tu-dortmund.de
To: kjetilbrinchmannhalvor...@gmail.com
CC: r-help@r-project.org
Subject: Re: [R] ?summaryRprof running at 100% cpu for one hour ...
On 19.11.2010 21:43, Kjetil Halvorsen wrote:
This is very strange.
On 18.11.2010 02:12, Santosh Srinivas wrote:
Hello Group,
I am trying to see if there is way to access data that is inside another
namespace.
For e.g. the addATR function in the quantmod package calculates the ATR
using the TTR package and then plots it to the graph.
Now since it has already
On 19.11.2010 21:48, Patrick Leyshock wrote:
I'm trying to configure Version 2.12.0 or R to do memory profiling.
I've reconfigured the code:
% ./compile --enable-memory-profiling=YES
and verified that it's configured correctly by examining the output. I then
rebuild R:
% make
Then I fire
See ?spec.pgram
Uwe Ligges
On 17.11.2010 16:43, Wonsang You wrote:
Dear R helpers,
I have two time series, and I want to perform the cross-spectral analysis
for these time series.
I would like to know whether there is any R function to generate
cross-spectrum such as co-periodogram and
Hi List
I am trying to call the R library function rosavent from the climatol
package via the plr interface package to the postgres database.
My code is a follows
create or replace function w_graph() returns text as
'
str - pg.spi.exec(select
n,nne,ne,ene,e,ese,se,sse,s,ssw,sw,wsw,w,wnw,nw,nnw
o.k., I solved it.
It was because my win user didn't have proper privileges to use the dll that
came bundled in the RCurl package. After giving proper permission to the R
folder, I reinstalled RCurl, and it loads fine.
Sorry for the false alarm.
Cheers,
Tal
Contact
On Nov 20, 2010, at 3:25 PM, David Potts wrote:
Hi List
I am trying to call the R library function rosavent from the climatol
package via the plr interface package to the postgres database.
My code is a follows
create or replace function w_graph() returns text as
'
str - pg.spi.exec(select
Dear Farrel,
Now, using the most updated version of the packages, I was able to make your
example work for me - thank you very much for your help!
Best,
Tal
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Hi,
I have count data
x2=rep(c(0:3),c(13,80,60,27))
x2
0 1 2 3
13 80 60 27
I want to graph to be ploted as
barplot(table(x2),density=4)
how do I add relative frequency to it, like in
hist(x2,labels=T)
above the 'bar's
Thanks.
casper
--
View this message in context:
On 11/20/2010 12:55 PM, David Winsemius wrote:
On Nov 20, 2010, at 3:25 PM, David Potts wrote:
I am trying to call the R library function rosavent from the climatol
package via the plr interface package to the postgres database.
# select w_graph();
ERROR: R interpreter expression evaluation
I was trying to recreate this kind of timeline plot:
http://www.vertex42.com/ExcelArticles/create-a-timeline.html
As you can see in their excel example, the events are nicely placed out on
both sides of the timeline axis.
AFAIK there is no function to do this nicely in R-project. Furthermore,
Hi,
I am running R 2.12.0 (windows).
example(txtProgressBar)
gives me some funny screen output with all kinds of special characters
appearing and disappearing. It's happening on two different mashines since
vs. 2.12.0. Is this a known issue?
Best,
Jalla
--
View this message in context:
Hi all,
I am trying to remove the current labels of the tick marks and replace them
with text using xyplot within lattice
right now I have tick marks at 1, 1.5, 2, 2.5, 3 I would like to transform
them to say 'T1', 'T2', 'T3'
thanks in advance
Kathleen
--
View this message in context:
On Nov 20, 2010, at 6:32 PM, kateF87 wrote:
Hi all,
I am trying to remove the current labels of the tick marks and
replace them
with text using xyplot within lattice
right now I have tick marks at 1, 1.5, 2, 2.5, 3 I would like to
transform
them to say 'T1', 'T2', 'T3'
In the
Hello,
I want only the value of Beta so the statement Power-1-Beta[1] works right.
How to do? See code below
Beta - integrate(dnorm,mean=0,sd=1, 2.3552,Inf)
Power- 1-Beta[1]
Sincerely,
Mary A. Marion
__
R-help@r-project.org mailing list
Hi,
I'm a newbie when it comes to R, and I'm trying to figure out how to use
vectorization as opposed to for loops. In particular, how can I create a
function that is applied on each element of a row, but can access previous
elements relative to that element?
My problem: I want to calculate
Hi Amol,
It depends on your exact needs, but one way, assuming you do not need
to access previous calculations, only previous elements:
x - 1:10
x[-10] / x[-1]
The idea is first create a vector, x, then using negative indices,
select the first 9 elements of x (i.e., 1:9) to be divded by the
Hi Mary,
You're really close, the issue is that you have a list, not a vector
(see the documentation for ?integrate). So, you need to use:
1 - Beta[[1]]
or (again relying on the documentation), you could also use $ and call
it by name:
1 - Beta$value
Cheers,
Josh
On Sat, Nov 20, 2010 at
see below.
2010/11/20 Uwe Ligges lig...@statistik.tu-dortmund.de:
On 19.11.2010 21:43, Kjetil Halvorsen wrote:
This is very strange. (Debian squeeze, R 2.12.0 compiled from source)
I did some moderately large computation (including svd of a 560x50
matrix),
running a few minutes, and R
Hi Casper,
try this:
b - barplot(table(x2),density=4, ylim=c(0,100))
tx2 - table(x2)
text(b,tx2+5, as.character(tx2))
greetings,
Remko
--
View this message in context:
http://r.789695.n4.nabble.com/how-to-add-frequencies-to-barplot-tp3051923p3052067.html
Sent from the R help mailing list
Hello everyone!
I want to use density function of R to compute the density at x(=0, say). But
it
is giving me the 5-number summary and mean of the data and densities at that
point.
I just want the densities at different values specified by me. Can anyone let
me
know how can I find that?
OK . I will try to give an reproducible example.
the code I give refer to a 72x72 matrix Wna, which is given at the
end of this message.
This matrix contains NA's on the diagonal.I try an correspondence
analysis on this matrix,
with package anacor, which supports correspondence analysis of
On Nov 20, 2010, at 8:07 PM, Shant Ch wrote:
Hello everyone!
I want to use density function of R to compute the density at x(=0,
say). But it
is giving me the 5-number summary and mean of the data and densities
at that
point.
I just want the densities at different values specified by me.
Dear R People:
Do we say that R is a programming language or a programming environment, please?
Which is correct, please?
Thanks in advance,
Sincerely,
Erin
--
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto:
Date: Sat, 20 Nov 2010 21:30:38 -0300
From: kjetilbrinchmannhalvor...@gmail.com
To: lig...@statistik.tu-dortmund.de
CC: r-help@r-project.org
Subject: Re: [R] ?summaryRprof running at 100% cpu for one hour ...
see below.
2010/11/20 Uwe Ligges :
On 19.11.2010 21:43, Kjetil
Not many really care about what it is called but here is what the page
says
R is `GNU S', a freely available language and environment for statistical
computing and graphics which provides a wide variety of statistical and
graphical techniques: linear and nonlinear modelling, statistical
I had seen it written as a Language . I had always thought of it as
an environment.
Thanks to all,
Erin
On Sat, Nov 20, 2010 at 8:25 PM, Santosh Srinivas
santosh.srini...@gmail.com wrote:
Not many really care about what it is called but here is what the page
says
R is `GNU S', a
David, I did look at ?density many times. I think I didn't explain what I have
to find.
Suppose I have a data.
x- c(rnorm(40,5,3),rcauchy(30,0,4),rexp(30,6))
Suppose I don't have information about the mixture, I have been given only the
data.
density(x) will give the 6 number summary of the
Wikipedia: (http://en.wikipedia.org/wiki/R_(programming_language): R
is a programming language and software environment for statistical
computing and graphics.
www.r-project.org - What Is R?: R is a language and environment
for statistical computing and graphics.
I've routinely
Hi Shant,
You could use approxfun() on the density as follows:
# data
set.seed(123)
x - c(rnorm(40,5,3),rcauchy(30,0,4),rexp(30,6))
d - density(x)
str(d)
List of 7
$ x: num [1:512] -115 -115 -115 -114 -114 ...
$ y: num [1:512] 3.24e-05 6.99e-05 1.40e-04 2.58e-04
[with liberal snipping]
Do we say that R is a programming language or a programming environment,
please?
Which is correct, please?
I think the short answer is both. The long answer is it depends
whether you are talking about the language or the program. Probably
my favorite definition is by
Hi folks,
install.packages(RthroughExcelWorkbooksInstaller)
Installing package(s) into ‘C:\Users\satimiswin764\Documents/R/win-library/2.12’
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
Error: subscript out of bounds
install.packages()
Installing
By any chance is it possible to add filled.contour(...) to an existing plot
like you can do using image(..., add = TRUE). I looked at the
filed.contour(...) and levelplot(...) documentation, but it didn't seem to be
possible.
I would like to add filled.plot(...) as shown below instead
Hi Jason!
I have suggested in another post how to plot more than one
filled.contour graph at the same device. Maybe you could adapt that
script to you specific problem.
Look my suggestion at:
http://r.789695.n4.nabble.com/several-Filled-contour-plots-on-the-same-device-td819040.html#a2332041
--
The conventional view used to be that S is the language and that R and S-PLUS
are implementations of it. R is usually described as 'a programming
environment for data analysis and graphics' (as was S-PLUS before it). However
as the language that R implements diverges inexorably from the
Hi,
I'm trying to use the solve() function in R to invert a matrix. I get
the following error, Lapack routine dgesv: system is exactly singular
However, My matrix doesn't appear to be singular.
[,1] [,2] [,3] [,4]
[1,] 0.99252358 0.93715047 0.7540535 0.4579895
Hi folks,
Win 7 64bit
R 2.12.)
Today on running:
update.packages()
Error: subscript out of bounds
Unable to proceed. I have been googling around and couldn't discover the
cause. Pls help. TIA
B.R.
Stephen L
__
R-help@r-project.org mailing
Hi Noah,
Could you please show us what you did? I can not reproduce your problem
(sessionInfo below):
m - matrix(scan(), ncol = 4, byrow = TRUE)
1: 0.99252358 0.93715047 0.7540535 0.4579895
5: 0.01607797 0.09616267 0.2452471 0.3088614
9: 0.09772828 0.58451468 1.4907090 1.8773815
13:
Your matrix has rank 3:
A - matrix(c(0.99252358, 0.93715047, 0.7540535, 0.4579895,
+ 0.01607797, 0.09616267, 0.2452471, 0.3088614,
+ 0.09772828, 0.58451468, 1.4907090, 1.8773815,
+ -0.0100, 0., 0.090, 0.170),
+
On Nov 20, 2010, at 9:34 PM, Shant Ch wrote:
David, I did look at ?density many times. I think I didn't explain
what I have to find.
Suppose I have a data.
x- c(rnorm(40,5,3),rcauchy(30,0,4),rexp(30,6))
Suppose I don't have information about the mixture, I have been
given only the data.
What you show below is only a representation of the matrix to 7dp. If you look
at that, though, the condition number is suspiciously large (i.e. the matrix is
very ill-conditioned):
txt - textConnection(
+ 0.99252358 0.93715047 0.7540535 0.4579895
+ 0.01607797 0.09616267 0.2452471
Hi,
I have a process (not in R) that records events with a time stamp. So,
I have a huge series of maybe 100,000 time stamps.
I'd like to break it up into hourly (Or daily) intervals and then count
how many events occurred in each interval. That way I can graph it.
Ideally, converting the
Thanks for the explanation.
I'm taking a class (in grad school these days) on advanced derivatives
(financial, not calculus). One of the valuation strategies involves
building two matrices and then solving. This matrix is for the
particular group of call options I selected based on other
Hi,
I would try to sample by row index and column index. Hope it helps.
df - data.frame(matrix(1:18,nrow=3,ncol=6,byrow=TRUE))
colnames(df) - c(letters[1:3],LETTERS[1:3])
## Generate a new data frame with 10 rows
one - two - three - numeric(10)
for (i in 1:10) {
## Sample from type I
col.1 -
On 11/20/2010 08:56 PM, Stephen Liu wrote:
Hi folks,
Win 7 64bit
R 2.12.)
Today on running:
update.packages()
Error: subscript out of bounds
Unable to proceed. I have been googling around and couldn't discover the
cause. Pls help. TIA
Hi Stephen -- maybe
Hi r-users,
I would like to solve system of nonlinear equation using BBsolve function and
below is my code. I have 4 parameters and I have 4 eqns.
mgf_gammasum - function(p)
{
t - rep(NA, length(p))
mn - 142.36
vr - 9335.69
sk - 0.8139635
kur - 3.252591
rh - 0.896
# cumulants
k1 -
It's actually not too difficult to write the density function itself as
returning a function rather than a list of x and y values. Here is a no frills
(well, few frills) version:
### cut here ###
densityfun - local({
normd - function(value, bw) {
force(value); force(bw)
function(z)
Roslina Zakaria wrote:
Hi r-users,
I would like to solve system of nonlinear equation using BBsolve function
and
below is my code. I have 4 parameters and I have 4 eqns.
mgf_gammasum - function(p)
{
t - rep(NA, length(p))
mn - 142.36
vr - 9335.69
sk - 0.8139635
kur - 3.252591
Did you try USA:Alaska?
That should work. I don't have the latticeExtra package installed so I cannot easily test
your code, but map(world, c(USA, Hawaii), fill=TRUE) looks OK to me. However you
don't actually show the code you are using when attempting to colour Alaska.
HTH,
Ray Brownrigg
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