On Mon, Nov 18, 2013 at 8:45 AM, PIKAL Petr wrote:
> Hi
>
>> -Original Message-
>> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
>> project.org] On Behalf Of Zach Feinstein
>> Sent: Wednesday, November 13, 2013 2:57 PM
>> To: r-help@r-pr
Hi
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of Zach Feinstein
> Sent: Wednesday, November 13, 2013 2:57 PM
> To: r-help@r-project.org
> Subject: [R] R Beginner - Need Perhaps 5 - 10 Minutes of R User T
elp@r-project.org
> Subject: [R] R Beginner - Need Perhaps 5 - 10 Minutes of R User Time to
> Learn Few Basics
>
> I have finally decided that I will learn R and learn it very well. For
> now I am using a program that a friend of mine developed to do some
> advanced statistical a
Bert:
Yet another reason I'm a fan of Frank Harrell. Does anyone know when
I get to buy the next edition of Regression Modeling Strategies?
Zach: Check www.coursera.org. They have some nice R-centric classes.
I signed up myself since my own R skills are self-taught. Also
consider investing in s
Type the following into your console window:
install.packages("fortunes")
library(fortunes)
fortune("brain surgery")
(It's not quite apposite, but close enough).
Cheers,
Bert
On Wed, Nov 13, 2013 at 5:57 AM, Zach Feinstein wrote:
> I have finally decided that I will learn R and learn it very
I have finally decided that I will learn R and learn it very well. For now I am
using a program that a friend of mine developed to do some advanced statistical
analyses. I downloaded RStudio to my machine. [Perhaps RStudio is not the best
platform to work from - I have heard that Rattle is sort
Thanks to all for help. The filter function appears most straightforward way
for this problem.
Kevin
--
View this message in context:
http://r.789695.n4.nabble.com/R-beginner-matrix-algebra-tp4653335p4653414.html
Sent from the R help mailing list archive at Nabble.com.
__
Convenient ways of computing both simple
and log returns are at the very end of:
http://www.portfolioprobe.com/2012/11/05/an-easy-mistake-with-returns/
Those work whether you have a vector or
a matrix.
Pat
On 17/12/2012 17:16, kevj1980 wrote:
Hi, I have an n x m matrix of numerical observati
ct.org [mailto:r-help-boun...@r-project.org] On
> Behalf
> Of Richard M. Heiberger
> Sent: Monday, December 17, 2012 1:54 PM
> To: kevj1980
> Cc: r-help@r-project.org
> Subject: Re: [R] R beginner: matrix algebra
>
> I think this is what you are looking for.
>
> > t
I think this is what you are looking for.
> tmp <- matrix(sample(20), 5, 4)
> tmp
[,1] [,2] [,3] [,4]
[1,]6 15 18 20
[2,]45 10 19
[3,]7913
[4,]8 14 11 13
[5,] 17 12 162
> t(apply(tmp, 1, diff))
[,1] [,2] [,3]
[1,]932
[
Hi, I have an n x m matrix of numerical observations. ie. stock prices
I wish to convert the matrix of observations to a matrix of simple returns
(by taking the differences between (column) observations.)
Can any good soul suggest a function for this?
--
View this message in context:
http://
Hi andrew
Stick to one tutorial before you get confident enough. I found this one
very good. informative, easy to understand and best thing you basically try
everything out on sample files provided. word of caution though instead of
using ctrl+R command in script file, manually type it in consol i
My $.02: re-do an analysis that you did in another software package in R,
making sure that you get the same results. A good way to learn any
language.
--
View this message in context:
http://r.789695.n4.nabble.com/R-beginner-tp4651719p4651759.html
Sent from the R help mailing list archive at N
Google "Learn R" (What else!)
-- And please do not post here further until you have done some studying.
-- Bert
On Sun, Dec 2, 2012 at 3:55 PM, Rui Barradas wrote:
> Hello,
>
> An Introduction to R, file R-intro.pdf comes with every installation of R,
> folder R/doc.
> And there are many boo
Hello,
An Introduction to R, file R-intro.pdf comes with every installation of
R, folder R/doc.
And there are many books available at http://www.r-project.org/. (Choose
the link Other at the left.)
Good luck.
Hope this helps,
Rui Barradas
Em 02-12-2012 22:45, Akrem Zoghlami escreveu:
Dear
On Sun, Dec 2, 2012 at 10:45 PM, Akrem Zoghlami wrote:
> Dear R-help group,
>
> I'm a R beginner and I find difficulty in manipulating R. Could you send to
> me a support that helps me to be familiar with R. Thank you in advance
>
Try typing
help.start()
at your prompt. This will bring up the m
Dear R-help group,
I'm a R beginner and I find difficulty in manipulating R. Could you send to
me a support that helps me to be familiar with R. Thank you in advance
Sincerely,
[[alternative HTML version deleted]]
__
R-help@r-project.org m
Hi Phil,
I think you want:
merge(listA, listB, by = "NACE")
which will give you:
NACE Name aaa bbb ccc
11a a a c
21a a a c
31a a a c
42b a a c
52b a a c
63c a a c
If you want to get rid of the Name column, th
dat3<-dat3[,1:4]
dat3
NACE aaa bbb ccc
1 1 a a c
2 1 a a c
3 1 a a c
4 2 a a c
5 2 a a c
6 3 a a c
A.K.
- Original Message -
From: ph!l
To: r-help@r-project.org
Cc:
Sent: Sunday, July 22, 2012 12:35 PM
Subject: [R] R Beginner
Hi everybody,
I am currently quite inexperienced with R.
I try to create a function that simply take a value in a dataframe, look for
this value in another dataframe and copy all the row that have this value
This example is a simplified version of what I am doing but it's enough to
help me
listA
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of Arne Henningsen
> Sent: Thursday, March 10, 2011 12:09 PM
> To: Alex Olssen; r-help@r-project.org
> Subject: Re: [R] R beginner - Error in as.vector(x, mo
Dear Alex
On 10 March 2011 20:31, Alex Olssen wrote:
> I find it hard to provide a reproducible version of this error.
> When I use the exact same procedure but get data from data()
> everything works fine.
> I.e., I do not think the startvals are the problem - in fact I copied
> the syntax for t
Hi Alex!
On 10 March 2011 09:46, Alex Olssen wrote:
> Hi everyone,
>
> I am new to R and keep getting the message
> Error in as.vector(x, mode)
> while trying to run nlsystemfit.
>
> Below is my exact code. The data is in Stata format because I only
> recently swapped to R and am trying to compa
Hi everyone,
I am new to R and keep getting the message
Error in as.vector(x, mode)
while trying to run nlsystemfit.
Below is my exact code. The data is in Stata format because I only
recently swapped to R and am trying to compare results from Stata to
make sure I know what is going on.
I have s
I have try again my function from this email.I just copy and paste it on the
R software
and it doesn't give any problem like before.Did you change anything to my
function?
Actually before this I have do others about my research and long time not
see this function.
Thank you very much for your help
azman wrote:
>
> i'am is new in R software.i have try to make a function but it can't give
> what it should.i dunno what have to do next.
> Can somebody help me to solve it.i'll very appreciate...
>
>
Your example is nice, because it is self-contained (even if there is a
buglet). When I run i
hello,
i'am is new in R software.i have try to make a function but it can't give
what it should.i dunno what have to do next.
Can somebody help me to solve it.i'll very appreciate...
##GEV simulation(Non-stationary)
dsim<-function(n, alpha, beta,sca,sha){
t <- 1:n
location <- alpha + beta*t
inv.d
Yes, it is exactly 'apply', and its friends. E.g. you can collect the
objects into a list and then do
sapply(mylist, is.matrix)
G.
On Wed, Apr 09, 2008 at 11:52:08AM -0400, Mon Mag wrote:
> I would like to apply a simple function, like
> is.matrix
> to more than one data.frame
> How can I call
I would like to apply a simple function, like
is.matrix
to more than one data.frame
How can I call on more than one data.frame? (are there any wildcards, etc?)
I am a true beginner and have tried to look this up in help files, but
cannot figure it out.
Thank you.
[[alternative HTML versi
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