Displaying 20 results from an estimated 6000 matches similar to: "Extract Data from Yahoo Finance"
2010 Dec 02
1
Downloading quote data from yahoo finance
Hi R users,
Thanks in advance.
I am using R 2.12.0 on Windows XP.
May I request you to assist me in the following please.
1. I am getting error while downloading quote data from yahoo finance.
The example code is below (taken from tseries help):
library(tseries)
con <- url("http://quote.yahoo.com")
if(!inherits(try(open(con), silent = TRUE), "try-error")) {
2008 Sep 09
2
yahoo finance into R
Hi R,
I am familiar with the basics of R.
To learn more I would like how to get data from Yahoo!finance directly into
R. So basically I want a data frame or matrix to do some data analysis.
How do I do this?
Thank you very much.
Thomas
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2010 Nov 07
1
High Frequency Trading
Hi R users,
Thanks in advance.
I am using R 2.12.0 on Windows XP.
My objective is to construct algorithms for High Frequency Trading.
May I request you to provide me information such as packages or tools please.
Thank you very much for the time you have given.
Regards,
Deb
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2017 Sep 06
1
Using quantmod to obtain current Dow Jones index
R 3.4.1
OS X
Colleagues,
I am just learning to use the quantmod package and I have encountered something that I don?t understand.
This works:
getSymbols("^DJI")
This does not work:
getQuote("^DJI?)
It returns only NAs:
Trade Time Last Change % Change Open High Low Volume
^DJI <NA> N/A N/A N/A N/A N/A N/A N/A
Two questions:
1. Is there some way to obtain the
2018 Jan 07
1
help needed on quantmod....
dear members,
I am using quantmod to work with stock prices...
I am trying to append the data got from getQuote to the one got by getSymbols. The function is named "apnd". The code is as follows:
function(x){
if ((class(x) == "xts") || (class(x) == "zoo")){
sym <- deparse(substitute(x))
2012 Oct 11
2
simple parsing question?
I am using the getQuote function in the Quantmod package to retrieve the % change for a stock as follows:
> getQuote("aapl",what=yahooQF(c("Change Percent (Real-time)")))
Trade Time %Change (RT)
aapl 2012-10-11 03:41:00 N/A - -1.67%
How can I extract the numeric "change %" which is being returned as a factor so that I can use it in other
2011 Oct 20
4
quantmod package
i am new to the quantmod package . so if the answer is trivial please excuse
me. i want to study stock values within a day. i get current stock updates
using getQuotes and then want to produce usual quantmod graphs with that
values. also the graph should be able of adding technical indicators. please
help. in addition it will be helpful if anyone suggests how to run that code
continuously to get
2011 Aug 25
1
How download Yahoo Quote?
Hello all:
Friend told me that we can download the stock historical quote from
Yahoo site by R!
Could you tell me that is true or not, how to do that?
Thanks!
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2010 Sep 20
3
Composing Music - R Package
Hi R Users,
Thanks in advance.
I am using R-2.11.1 on Windows XP.
May I request you to assist me for the following please.
1. Is there any R-package or if any to compose music?
2. Is there any R-package or if any to analyse music?
Once again, thank you very much for the time you have given.
Regards,
Deb
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2011 Oct 12
4
R and Forex
Hi all,
I recently started learning about Forex and found this O'Reilly book in
Barnes & Nobles about R. I bought it out of pure curiosity. I like what I
see. However, I have a question. Has anyone tried to bring these two ideas
together in a financial and trading sense? Are there any libraries or
modules in R that can aid in this venture?
--Yves
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2018 Mar 05
2
Interpret List Label as Date from Quantmod getOptionChain
Hi Dirk,
Thanks for your note.
I understand that expiry dates are the dates that the option expires, so I don't think that I am confused about that (although the upper limits of one's confusion is difficult to accurately estimate).
My lack of clarity come from treating those "dates" as actual dates as opposed to strings, which one could reasonably interpret them to be from
2018 Mar 05
0
Interpret List Label as Date from Quantmod getOptionChain
On 5 March 2018 at 03:13, Sparks, John wrote:
| library(quantmod)
| #in fairness, I did not include this last time and my example was therefore not reproducible. Apologies to Bert and everyone else #for not following the posting guidelines.
| aapl_total<-getOptionChain("AAPL", NULL)>
|
| How could I then get the subset of the entire list which only has expiry dates in 2019, or
2018 Mar 05
2
Interpret List Label as Date from Quantmod getOptionChain
Hi R Helpers,
Is it possible to interpret the top level of the list as a date after downloading all the option chain data for a ticker?
For example, after I run
aapl_total<-getOptionChain("AAPL", NULL)
the top descriptor of the lists is a date (Mar.09.2018, Mar.23.2018, etc.).
So if want to subset down to those parts of the list that correspond to say, (expiration)
2010 Jun 05
1
How to get the closing price from the the GOOGLE FINANCE site for NSEINDIA stocks
Sir,
How to get the closing price from this link
http://www.google.com/finance/historical?q=NSE:RCOM
I installed quantmod
getSymbols('NSE:RCOM',src='google')
gives me this error**********************
Error in download.file(paste(google.URL, "q=", Symbols.name, "&startdate=", :
cannot open URL
2008 Mar 13
1
R Finance
Hi,
I am an R novice working with financial data. I am developing a
portfolio strategy evaluation technique to back-test the performance
of our screens; checking how the screened stock would've performed
over the period in question.
I am using quantmod in R to download the historical data from yahoo
and then analyzing it using PerformanceAnalytics. My problem is that,
as our screens are done
2011 Feb 10
2
Installing R on cygwin
Hi R users,
Thanks in advance.
Is it possible to install R on cygwin? If yes, can anyone assist me how can I install R on cygwin?
Currently, I am using R on Windows XP. I have found that binary version of some packages such as RCurl is not available.
Once again, thank you very much for the time you have given.
Regards,
Deb
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2018 Mar 05
0
Interpret List Label as Date from Quantmod getOptionChain
Package?
The **names** of the top levels of your lists, "Mar.09.2018", "Mar.23.2018"
certainly look like dates and if they are -- I have no idea what
package/context is -- they certainly could be formatted as such. See e.g.
"date-time" . There are also several package that provide date tools.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is
2009 Feb 07
1
Yahoo data downloading problem
Hi,
I got some problems while was trying to download data from Yahoo using
yahoo.get.hist.quote() function. My script is as follows :
app <- yahoo.get.hist.quote("aapl", start="02/07/09", end="02/07/06",
quote="close")
However I got following error :
trying URL
2012 Nov 23
1
Constant (= wrong) historical quotes via get.hist.quote() from yahoo.finance
Dear expeRts,
I would like to download a time series of historical data from the ticker with symbol "ROG.VX". Interestingly, I obtain constant values (138.3 for each day in the chosen period) although the yahoo.finance website tells me that the time series is not at all constant. What's wrong?
Cheers,
Marius
require(tseries)
hq <- get.hist.quote(instrument="ROG.VX",
2009 Oct 10
1
packages to download from yahoo finance
Hi
I am a new R user, so if this question has been raised and answered before, perhaps you can point me that way.
I was looking for some package/scripts that can download financial data from yahoo finance (or some other) website. I did check http://cran.r-project.org/web/packages/ but failed to find something like this. However, I am confident this problem has already been solved!
Thanks a lot.