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I'm wondering if anyone knows of a way to capture system messages, for instance when I do the following: > system("../DBScripts/getEODData.sh") .//LSE_20091230.txt: 154.80 kB 207.24 kB/s ./Fundamentals//LSE.txt: 420.58 kB 301.47 kB/s ./Fundamentals//MLSE.txt: 3.42 kB 16.20 kB/s

When I run the following code in a loop I get an error after about 125 times saying too many open files... if(inherits(atmpt, "try-error")){ output <- paste(yahooSymbol,"\n",sep="") write(output, file = "data", append = TRUE, sep = "") } else { I've tried various things to close the file after write opens it, and

Consider the following.... > fileLines V1 V2 V3 V4 V5 V6 V7 V8 1 AB 20091224 156.0 156.0 154.00 154.00 55 1198 2 AB.C 20091224 156.0 156.0 156.00 156.00 0 0 3 ABF10 20091224 156.0 156.0 156.00 156.00 55 444 4 ABH10 20091224 156.0 156.0 156.00 156.00 0 749 5 ABH11 20091224 157.2 157.2 157.20 157.20 0 0 6 ABH12

I have the following code fileList <-list.files(path = ".", pattern = "[^a-z].txt$", all.files = FALSE, full.names = FALSE, recursive = FALSE, ignore.case = FALSE) for (x in 1:length(fileList)){ fileLines <- data.frame(read.table(fileList[x])) print(string) } the lines of the file all have the following format... AB,20091224,156,156,154,154,55,1198 Can I access

Hi all, I've got an xts time series of stock symbols and closing prices. > head(x) symbol close 2010-01-04 "AFB" "13.46" 2010-01-04 "AKP" "12.80" 2010-01-04 "APX" " 8.78" 2010-01-04 "AYN" "13.15" 2010-01-04 "BAF" "13.50" 2010-01-04 "BBF" "12.86" >

So I've got a 154 column wide xts time series object and I want to plot the 154 series on a single plot and have the added benefit of the time series dates on the x axis. Any suggestions for plotting functions, maplot works but does not give dates on the axis and I can't seem to get plot to give me more than one series. Nick [[alternative HTML version deleted]]

Hi all, I've got an xts time series with monthly OHLC Dow Jones industrial index data from 1980 to present, the data is in stored in x. I've done an OLS fit on the data in 1982::1994 and stored it in extrapolate1 (x[,4] contains the closing value for the index). > t3 <- seq(1980,1994,length = length(x["1980::1994",4])) > t4<-t3^2 > extrapolate1 <-

Yet another question... I'm wondering if there is a built in facility to log errors. I've got this statement that gives me verbose DBI errors as they come up (to standard output), but I'd like to trap and log them to a file as I running about 3000000 sql statements through this particular piece of code and I'd like to keep the loop going and deal with all the errors once the

Hi all, I've got a time series object (xts) called table. Table contains closing price and volume for each market day of 2009 on a given equity. I'd like to get another xts object, say table2, that contains for each market day holds the close of that day minus the close of the day before and the volume of that day minus the volume of the day before. So table2 <- table[x,] -

Hi all, I'm using xyplot(closingDataXTS) To get a page with any number of seperate plots on it (as many plots as columns in closingDataXTS). Each plot is named according to colnames(closingDataXTS). I would like to control the size of the text each plot name appears in. I've seen a number of solutions for similar problems that point me in the direction of trellis.par.get and

Hi all, I've been messing with this for a while now.. myStudy is a matrix of word frequency to date of document/document. As you can see I'm trying to plot the series in the matrix. I'd like three things -- 1- In the plot that gets created the first series is a solid line, the rest are dashed... how do I make them either one or the other. 2- The legend that comes up has filled boxes

Hi all, I'm trying to do a simple curve fit and coming up with some interesting results I would like to get comment on. So as shown below, tsR is my explanatory and response is... well... my response. This same data in gnumeric gets fitted with the curve "response=10078.4 + 1358.67 * ln (explanatory - 2009.07) So I'm using nls with the start values supplied by gnumeric. in

I got the following after running succesfully through this loop 28 million times... the loop opens text files in a directory and inserts line by line into a database... *** caught segfault *** address 0xc0000010, cause 'memory not mapped' Traceback: 1: .getGeneric(f, where, package) 2: getGeneric("coerce", where = where) 3: as(obj, "integer") 4: