Hi,
I want to optimize the root mean square error objective function using the
optim function. Thus the function will look like sqrt(sum((yi - f(xi))^2)/n).
Now the f(xi) is the Arima function. I am not clear how do I get the f(xi)
because the call to arima function in C gives the value of th
FWIW, this is the kludge I came up with. The idea is that I only know
the name of the company and not the ticker/exchange. So the following
admittedly doesn't work in all cases (e.g. "Time Warner"). So if anyone
alternatively knows how to return a list of tickers/exchanges of
companies match
If you do not need a pure R solution, you might also find it helpful to
blend languages. For scraping and munging tasks such as this I generally
turn to python to do extraction then feed data to R for analysis via rpy.
On Thu, Nov 20, 2014 at 8:57 PM, Spencer Graves <
spencer.gra...@structuremoni
The Ecfun package includes functions written to scrape data from
web pages. See, e.g., readUShouse, readUSsenate,
readUSstateAbbreviations. They use getURL{RCurl} and readHTMLTable{XML}.
Hope this helps.
Spencer Graves
On 11/20/2014 5:42 PM, Matt Considine wrote:
Hi,
Hi,
I'm wondering if anyone can point me to code to parse data on Google
Finance pages, i.e. parse the results of a URL request such as this
http://www.google.com/finance?q=apple
I know how to return the contents of the page; it's figuring out the
best tools to parse it that I'm interested i
RCurl has a verbose switch, which may be set as follows:
response <- postForm(getUpdateURL(),.opts = list(postfields = '{"delete":
{"query":"*:*"}}',httpheader = c('Content-Type' = 'application/json',Accept
= 'application/json', *verbose = TRUE*) # emphasis mine
On 20 November 2014 16:16, Mark Mi
I am trying to use the R / solr integration from
https://github.com/datadolphyn/R/blob/master/r_solr_integration.R
I have the query function working, but I'm having trouble with the post
functions, which uses rcurl.
Is it possible to see the string that rcurl is going to send to a webserver
(inst
Hi R-Help,
So, I will try to provide a reproducible example...I basically made a dummy
spreadsheet that contains the same number of tabs as the spreadsheet I am
really interested in. The data on that spreadsheet is really sensitive so
I couldn't use it.
Anyway, here are the various sheets in the
Never mind, I found the problem.
In my profile s was assigned to summary.
This is why it did not work.
On Thu, Nov 20, 2014 at 5:14 PM, Dimitri Liakhovitski
wrote:
> Dear R-ers,
>
> apologies for not providing the full code. I just need a point in the
> right direction.
> I have a data frame ('te
On Thu, Nov 20, 2014 at 5:02 PM, Duncan Murdoch
wrote:
> On 20/11/2014, 4:35 PM, Ista Zahn wrote:
>> This prompted me to do something I've been meaning to do for a long
>> time, which is to try to get the R website updated in terms of visual
>> style. It really is showing it's age and could use a
Any help on this issue will be greatly appreciated. Spent days sitting alone in
a remote corner of the world--> Patiala, Punjab, India.. trying to do this!
---
setwd("C:/Documents and
Sett
This prompted me to do something I've been meaning to do for a long
time, which is to try to get the R website updated in terms of visual
style. It really is showing it's age and could use a facelift in my
opinion. Toward than end I've mocked up a copy of cran.r-project.or
using css from the python
On 20/11/2014, 4:35 PM, Ista Zahn wrote:
> This prompted me to do something I've been meaning to do for a long
> time, which is to try to get the R website updated in terms of visual
> style. It really is showing it's age and could use a facelift in my
> opinion. Toward than end I've mocked up a co
Dear R-ers,
apologies for not providing the full code. I just need a point in the
right direction.
I have a data frame ('temp') with 1,200 rows and 2 variables.
I am using ggplot2 to create a scatter plot:
This is my code and it works fine, it creates a scatter plot:
library(ggplot2)
sp10<-ggplo
On Nov 20, 2014, at 12:56 PM, David Winsemius wrote:
>
> On Nov 20, 2014, at 8:10 AM, Anthony Damico wrote:
>
>> survey:::svyplot.default with style="grayhex" calls
>> hexbin:::gplot.hexbin
>>
>> an internet search turns up lots of people asking the question "how do i
>> set xlim and ylim
On Nov 20, 2014, at 8:10 AM, Anthony Damico wrote:
> survey:::svyplot.default with style="grayhex" calls
> hexbin:::gplot.hexbin
>
> an internet search turns up lots of people asking the question "how do i
> set xlim and ylim on hexbin plots?" but i don't see any easy solutions. :/
Looking
On Nov 20, 2014, at 7:56 AM, Dewi VERNEREY wrote:
>
> Hi Franck,
>
> I am using the calibrate function from the package rms (4.2-1) with R (3.1.2)
> in a Mac OS 10.10.1 environment .
That's the Yosemite platform. I'm running R 3.1.2 with the current CRAN
binaries (which were recently updated
I usually find my students appreciate it when I teach them something that has
utility in multiple contexts. Teaching them how to express an idea in R code is
valuable. And as far as structuring thought and expressing ideas go, it's quite
equivalent to symbolic equations. Both are just notation.
On 20/11/2014 2:10 PM, Prof J C Nash (U30A) wrote:
I was looking at the R website (r-project.org).
1) The Books page does not list several books about R, including one of
my own (Nonlinear parameter optimization tools in R) nor that of Karline
Soetaert on differential equations. How is the list
Ista,
On the one hand I'd like it to be as flexible as possible so the
students could really come up with whatever they like. On the other
hand, restricting their choices probably would make it easier to do the
backend. The goal would be to get them to realize that the apparatus of
hypothes
On Nov 20, 2014, at 2:23 AM, i.petzev wrote:
> Hi David,
>
> sorry, I was not clear.
Right. You never were clear about what you wanted and your examples was so
statistically symmetric that it is still hard to see what is needed. The
examples below show CI's that are arguably equivalent. I can
I was looking at the R website (r-project.org).
1) The Books page does not list several books about R, including one of
my own (Nonlinear parameter optimization tools in R) nor that of Karline
Soetaert on differential equations. How is the list updated?
2) The wiki seems to be dead. Is anyone in
Hi Franck,
I am using the calibrate function from the package rms (4.2-1) with R (3.1.2)
in a Mac OS 10.10.1 environment .
With my previous configuration (other computer) the function calibrate worked
very well.
Unfortunately, now the calibrate function doesn’t work. Do you have an idea to
h
Not sure you really want the overhead of sweep() for this, but logically, you
want z as a vector or maybe 1d array since sweep() is designed as complimentary
to apply(). I.e., you can sweep out marginal means using, say,
m <- matrix(c(5, 7, 9, 13), 2)
colmean <- apply(m, 2, mean)
sweep(m, 2, col
On 20 Nov 2014, at 17:19 , Akhil dua wrote:
> I am sorry for violating the guidelines but the data that I am using is
> highly confidential so I can't disclose it.I posted sample data just for
> giving the flavour of the data.
This happens, but then you need to simulate some data that show the
Have you thought about programming a function builder into the Shiny applet?
It might simplify the process for your students a bit. A highly simplified
version of the page David suggested could be built that generates the R code.
Best of luck,
Alan
-Original Message-
From: Scott Rif
I am sorry for violating the guidelines but the data that I am using is
highly confidential so I can't disclose it.I posted sample data just for
giving the flavour of the data.
On Nov 20, 2014 5:46 PM, "Prof Brian Ripley" wrote:
There is no auto.arima function 'in R'. Do give credit/blame where
survey:::svyplot.default with style="grayhex" calls
hexbin:::gplot.hexbin
an internet search turns up lots of people asking the question "how do i
set xlim and ylim on hexbin plots?" but i don't see any easy solutions. :/
On Thu, Nov 20, 2014 at 10:31 AM, Raphael Fraser
wrote:
> Does not w
> On Nov 20, 2014, at 4:03 AM, Frederic Ntirenganya wrote:
>
> Hi All,
>
> I want to make a climate method ("sweave_function"). The aim is to be able
> to adapt sweave code that produces an automatic pdf so that it can works
> for my climate object. i.e. instead of compile pdf, I call :
> data_
Does not work when ,style="grayhex".
library(survey)
data(api)
dstrat<-svydesign(id=~1,strata=~stype, weights=~pw, data=apistrat, fpc=~fpc)
svyplot(api00~api99, design=dstrat, style="grayhex")
svyplot(api00~api99, design=dstrat, style="grayhex", ylim=c(500, 700))
On Thu, Nov 20, 2014 at 9:19 AM,
> On Nov 20, 2014, at 8:00 AM, Duncan Murdoch wrote:
>
> On 20/11/2014 3:31 AM, Muraki Kazutaka wrote:
>> Hi all
>> I'm trying install R from EPEL repo on Scientific Linux. It's going
>> together texlive rpm dependencies also from repo, but I already have
>> installed TexLive with tlmgr from CTA
Raphael
I just ran an example from the help file, and the xlim argument worked
fine. Can you post a small example where the xlim argument doesn't work?
Jean
library(survey)
data(api)
dstrat<-svydesign(id=~1,strata=~stype, weights=~pw, data=apistrat, fpc=~fpc)
svyplot(api00~api99, design=dstrat,
On 20/11/2014 3:31 AM, Muraki Kazutaka wrote:
Hi all
I'm trying install R from EPEL repo on Scientific Linux. It's going
together texlive rpm dependencies also from repo, but I already have
installed TexLive with tlmgr from CTAN mirror and I don't want texlive
rpms from linux repo.
So... Question
Hi all
I'm trying install R from EPEL repo on Scientific Linux. It's going
together texlive rpm dependencies also from repo, but I already have
installed TexLive with tlmgr from CTAN mirror and I don't want texlive
rpms from linux repo.
So... Question is... How can I install R without these deps an
Indeed.
Start here:
http://www.r-bloggers.com/three-tips-for-posting-good-questions-to-r-help-and-stack-overflow/
and then read this:
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
Then put some comments into your code about what you think it should do. Oh
Sorry, just noticed the typo: it's is.na() of course.
-- Bert
Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374
"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
Clifford Stoll
On Thu, Nov 20, 2014 at 4:04 AM, Bert Gunter wrote:
>
There is no auto.arima function 'in R'. Do give credit/blame where it
is due (probably package 'forecast').
Without the reproducible example the posting guide asked for, we can
only guess wildly. I at least decline to do so.
On 20/11/2014 10:52, Akhil dua wrote:
Hello every one,
I am usi
No comment on whether Jeff's solution is correct or not, but for
setting elements to NA, perhaps preferable, as it invokes the NA
method for data frames -- see ?NA -- is:
is,na(DF[ , c("value1","value2") ]) <- !DF$ToKeep
(I would welcome comments from cogniscenti as to whether this is
actually pr
Hello every one,
I am using daily data of the flight departure.
Departure Date Load (Seats booked/Capacity)
12/01/2011 10
13/01/2011 12
14/01/2011 09
I want to fit an arima model to the data
Hi David,
sorry, I was not clear. The difference comes from defining or not defining �w�
in the boot() function. The results with your function and your approach are
thus:
set.seed()
x <- rnorm(50)
y <- rnorm(50)
weights <- runif(50)
weights <- weights / sum(weights)
dataset <- cbind(x,y,we
Thanks Charles. I will have to extract the min value from the list A by
selecting the proper index.
From: Charles Determan Jr [deter...@umn.edu]
Sent: Wednesday, November 19, 2014 11:48 PM
To: Amit Thombre
Cc: r-help@r-project.org
Subject: Re: [R] Using sapply ins
Hi All,
I want to make a climate method ("sweave_function"). The aim is to be able
to adapt sweave code that produces an automatic pdf so that it can works
for my climate object. i.e. instead of compile pdf, I call :
data_obj$sweave_function() and get the pdf. for instance I have
boxplot_method()
Hi
Plot calls function pretty which calculates values for annotating axes.
You can get rid of this behaviour by
plot(..., axes=FALSE)
and calling
axis(1, ...)
see
?plot
?pretty
?axis
Cheers
Petr
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> p
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