xts

问题 I have a long list of xts objects and I'd like to automatically plot and save them to a folder (because it takes a v long time to do manually with >500 plots). The tricky part seems to be to apply functions to lists of xts objects. For example, getting a generalized naming method for the list elements based on its date (each xts object in the list is a unique day), and plotting each object and saving them to a file path with its own name. The data can be found in a previous post here. Each

问题 I have the following xts object. x <- structure(c(30440.5, 30441, 30441.5, 30441.5, 30441, 30439.5, 30440.5, 30441, 30441.5, NA, NA, 30439.5, NA, NA, NA, 30441.5, 30441, NA), .indexTZ = "", class = c("xts", "zoo"), .indexCLASS = c("POSIXct", "POSIXt"), tclass = c("POSIXct", "POSIXt"), tzone = "", index = structure(c(1519866931.1185, 1519866931.1255, 1519866931.1255, 1519866931.1905, 1519866931.1905, 1519866931.1915), tzone = "", tclass = c("POSIXct", "POSIXt")), .indexFormat = "%Y-%m-%d %H:%M

问题 I am new to stackoverflow and fairly new to R but have searched long and hard and cannot find an answer to the following question. I have a number of data files that are temperature against a time series. I am importing the CSV as a ZOO object then converting to XTS. A correct file looks like this, with readings on the hour and the half hour: >head(master1) S_1 2010-03-03 00:00:00 2.8520 2010-03-03 00:30:00 2.6945 2010-03-03 01:00:00 2.5685 2010-03-03 01:30:00 2.3800 2010-03-03 02:00:00 2

问题 The latest version of xts on CRAN is 0.7-5. But I'd like to try out the blotter package, for which xts >= 0.7.6.17 is required. To get this latest version, I first I downloaded the .tgz file from RForge and tried: [Downloads]$ R CMD INSTALL xts_0.7-6.17.tgz WARNING: ignoring environment value of R_HOME * installing to library ‘/Library/Frameworks/R.framework/Resources/library’ * installing *binary* package ‘xts’ ... * DONE (xts) After launching R console, I typed require(xts) and got this: >

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 4 years ago . I have 5 XTS objects. Each containing an individual variable returns (various asset classes, e.g. stocks, bonds, hedge funds, etc...) The problem I am having is that the date sequence for each object are not exact. Some dates are missing for some of the individual objects. Generally, the data are

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 4 years ago . I have 5 XTS objects. Each containing an individual variable returns (various asset classes, e.g. stocks, bonds, hedge funds, etc...) The problem I am having is that the date sequence for each object are not exact. Some dates are missing for some of the individual objects. Generally, the data are

问题 I have a csv file and when i use this command SOLK<-read.table('Book1.csv',header=TRUE,sep=';') I get this output > SOLK Time Close Volume 1 10:27:03,6 0,99 1000 2 10:32:58,4 0,98 100 3 10:34:16,9 0,98 600 4 10:35:46,0 0,97 500 5 10:35:50,6 0,96 50 6 10:35:50,6 0,96 1000 7 10:36:10,3 0,95 40 8 10:36:10,3 0,95 100 9 10:36:10,4 0,95 500 10 10:36:10,4 0,95 100 . . . . . . . . . . . . 285 17:09:44,0 0,96 404 Here is the result of dput(SOLK[1:10,]) : > dput(SOLK[1:10,]) structure(list(Time =

问题 Whenever I try to plot my xts object with values passed for parameter col and lwd, it returns an error saying that the parameter col (and then lwd if I comment out col) matched multiple values. Here is what the function looks like - data is an xts object plot(data, lwd=2, col="red") Installing xtsExtra seems to solve the problem, but I don't understand why. 回答1: xts:::plot.xts specifies several parameters when constructing the axes ( col , lwd , las , and mgp ), but it also passes ... to the

问题 I'm having trouble adding some text to an plot of time series data in R using xts . I've produced a simple example of the problem. My text() command seems to do nothing, whereas I can add a points to the plot. I've tried to keep the code simple by using defaults where possible require(quantmod) # fetch the data and plot it using default options getSymbols('MKS.L') plot(MKS.L$MKS.L.Close) # try to add text - doesn't appear text(as.Date('2012-01-01'),y=500,"wobble", cex=4) # add a point - this

问题 I'm trying to import the financials statements of all the companies listed on the NYSE whose market cap is in greater than the first quartile of the sample. Here is my code : require(TTR) require(quantmod) data.init="2013/01/01" start.date <- as.numeric(gsub("/", "",data.init)) nyse.symbols <- stockSymbols("NYSE")[,-c(3,5)] nyse.symbols <- na.omit(nyse.symbols[which(nyse.symbols[,"MarketCap"]>0),]) ######## Selection Criteria # Filter 1 : stock mkt cap > 1st quartile --> remove the less