similar to: I'd like to know more efficient method to verify the pre-packaged codes

Hello, How can I convert Close colume of the below xts time series data into a list of Close values ? I'd like to plot Close values as a list. > head(zc) Close (10/15/12 09:00:00) 252.40 (10/15/12 09:01:00) 253.10 (10/15/12 09:02:00) 253.15 (10/15/12 09:03:00) 253.30 (10/15/12 09:04:00) 253.25 (10/15/12 09:05:00) 253.45 I tried the below command to plot it.

Hello, I'm very interested in using financial time series data, but I'm a beginner of R programming. I'd like to fully understand internal logics on several time-series related packages such as quantmod, xts, zoo, chron, etc. So, I read some books, 'R Cookbook' and 'Art of R Programming' and another simple tutorials. But I still can't understand grammars of the

Dear R Helpers, I am still having trouble with the getOptionChain command in quantmod. I have the latest version of quantmod, etc. so I was under the impression that the problem was solved with updates to the package. If someone could let me know what I need to install in order to make this work, I would really appreciate it. My error message as session info are shown below. Thanks a bunch.

Dear R-help, I am attempting to plot data using standard R plot utilities. The data was retrieved from FRED (St. Louis Federal Reserve) using the package quantmod. My question is NOT about quantmod. While I retrieve data using quantmod, I am not using its charting utility. I have been having success using the standard R "plot" utilities to this point with this type of data.

Hello, I have questions while reviewing "chron" package(e.g.,chron.R). 1. What is the differences between 3 kinds of function definition ? 1) "name" <- function(... 2) 'name' <- function(... 3) name <- function(... Do you know Why author used various kinds of definitions ? Is there no functional differences between them ? 2. I

Hello, I have trouble with extracting Date string from my each row data. The date format I use is as the follows: ---------------------------------------------------------------------------- ----------- Index,Open,High,Low,Close # header 2011-11-01 9:00:00 ,248.50,248.95,248.20,248.70 ... .... ---------------------------------------------------------------------------- ----------- When I read

Hello, I'd like to draw 2 plots in one graph. Here is my code: plot(data_min1$macd,main="1 min MACD",type="l") lines(data_min1$macdsig,col="red") par(new=T) plot(data_min1$macdhist,type="h",main="") axis(4) par(new=F) It seems it works. But left axes of two graphs are over-drawn. Could you let me know how to fix it ?

Hello, I have problem with using color. plot(data_min1$macd,col='black',main="1 min MACD",type="l") lines(data_min1$macdsig,col="red") par(new=T) plot(data_min1$macdhist,col=data_min3$histcol,type="h",main="") axis(4,col='black') par(new=F) When I remove ",col=data_min3$histcol" in the 2nd plot()

Hello, I'd like to convert the below time-series data with fft or wavelet related function and plot it. Could you let me know 1. How to convert xts data frame format to list format ? 2. How to plot fft or wavelet diagram ? Here is the data : > class(zc) [1] "xts" "zoo" > str(zc) An ‘xts’ object from (10/15/12 09:00:00) to (10/15/12 15:15:00)

Hello, I have trouble with using data.frame data. 1. I loaded data using the following: ff <- read.table("E:/R/VM/matrix.txt", header=T) The data I used is attached. I want to use at least 2 conditions for selecting of data. But I failed. It works. -> fff <- ff[ff$HG == "GUEST",] ffff <- fff[fff$WR == "READ",] But it

Howdy- I recently upgraded to R 2.9.1 and did the updates for all of my packages. A few of them now *suggest* the TZ variable to be set, which I did: > Sys.getenv("TZ") TZ "" > Sys.setenv(TZ="America/New_York") > Sys.getenv("TZ") TZ "America/New_York" Next up: library(RODBC) library(quantmod) channel <-

Hello, I have 1-minute time series stock data and I'd like to calculate mean of every n-th candle data of m-days. result = c(mean of 1th data, mean of 2nd data, ...) mean of 1th data = (1th data of 2012-1-1 + 1th data of 2012-1-2 + 1th data of 2012-1-3) / 3 mean of 2nd data = (2nd data of 2012-1-1 + 2nd data of 2012-1-2 + 2nd data of 2012-1-3) / 3 ... Could you let me know the fastest

Hi all, I would appreciate some help in understanding how to find out about objects. For example, to the extent that I understand R it seems to treat everything as an object even without declaring them as objects. Everything has attributes, for example, which are like instance variables in objects. In addition, there are S3 and S3 category objects. Is there a good introductory description of how

I am trying to read an xlsx spreadsheet (1506 rows, 501columns) all populated but getting the following error: Please advise as to how to get around this issue. > res <- read.xlsx("c:\\BSE_v2.xlsx",1) Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl, : java.lang.OutOfMemoryError: Java heap space Here is the session info:

Hello, I apologize that I am cross posting here after getting no answer from my initial question on stack overflow <http://stackoverflow.com/questions/33492601/r-setoldclass-only-if-needed>. I should certainly have posted it first here.. I am using 3 packages: - xts - quantmod - 'myPackage' quantmod is creating a union class by doing: setOldClass("xts");

Hi, I am using two packages (quantmod and FRAPO) Quantmod and FRAPO both have a class names "zoo" R is displaying the following warning when I manipulate an object of class zoo: Found more than one class "zoo" in cache; using the first, from namespace 'quantmod' Also defined by ?FRAPO? The warning is displayed every time I manipulate a zoo object and becomes pretty

Hi, I'm new to R and Quantmod. I'm trying to make use of Quantmod's features however I'm failing at the first hurdle and I'm finding most R documentation a little cryptic. I have some minutely data for the same day for a stock in an existing timeSeries (ts) object. For example: Date time price volume 2012-03-12 08:01 45.01 10000 2012-03-12 08:02

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

Running linux 10.04 ubuntu. Looks like Ubuntu automatically updated to version 2.13. I was running version 2.12 until today. But now I'm getting error messages when I use the require or library command and one of the packages I've downloaded in the past. For example: > require(quantmod) Loading required package: quantmod Warning message: In library(package, lib.loc = lib.loc,

Hello All, i was trying to simply run the readHTMLTable on the example published in the package. And on a page I was working on. So running: u = "http://en.wikipedia.org/wiki/List_of_countries_by_population" tables = readHTMLTable(u) returns the following error: Error in tb[["thead"]] : subscript out of bounds looking up this error on the web, didnt give me any hint. Is