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Hi all R-Experts, I'm facing one problem in yahoo data downloading. I'm suing Windows XP, R 2.2.0, and i'm using yahoo.get.hist.quote function to download data. I need 500 companies of S&P index daily 'closing price' data for last ten years. My questions are: 1) I have all the ticker names of S&P 500 companies in a .csv format. I'm reading those names in R and

Hi All, I have a (331*12) matrix. I wan t to braek it into 28 parts each window having 12 rows, so that each matrix become (12*12) matrix. How can i do this. Thanks, Sumanta. --------------------------------- Send instant messages to your online friends - NOW [[alternative HTML version deleted]]

Hi All, Can you please tell me if i write a function, and want to return certain object, can "R" work on it? I know this works in S-Plus. function(x) { ....... a<-...... reaturn(a) } Does this work in "R"? Thanks, Sumanta. --------------------------------- What makes Sachin India's highest paid sports celebrity?, Share your knowledge on Yahoo! India Answers

Hi All, I have a function like this: windowlength<-function(x) { mat <- matrix(rnorm(331*12),331,12) z <- rep(seq(0,331,by=11)+1, each=2) zz <- z[-c(1,length(z))] ind <- as.data.frame(matrix(zz, nr=2)) lapply(ind, function(x) mat[x[1]:x[2],]) cat("For",x/4,"month i.e",x,"week, number of windows is = ",length(ind),"\n")

Hi Everyone, This example code results in R 'crashing'; that is the R application closes with no warnings or error messages. #----------------------- myD <- read.table(stdin(), header=TRUE, nrows=20) Broth Salt pH Temp N Y Growth 1 310 9.0 2.92 10 90.0 NA 0 2 615 6.0 7.82 30 1.0 2 1 3 217 2.0 7.34 10 7.0 8

Hi All, I have 500 variables time series data for 10 years data. I have sorted 10 out of them according to them. Now my group is giving character string. But i want to fetch those varaible data from theoriginal data. How can i do this? Suppose, total is the data of 500*1500 data. Now i sort 10 variables. >grp >"A41" "A48","A489" Now how can i fetch only

Hi R-Users, First of all i apologize if this is too simple for you. I want to plot an index of which i have daily data for 10 years. I want to plot specific dates in X axis, like 20/05/91 20/12/92 20/07/94 etc..... and the index value in Y axis. Please suggest me. Thanks, Sumanta. --------------------------------- Find out what India is talking about on Yahoo! Answers India.

Hi R-Experts, How can I show all the relevant measures like mean, median, min. value, max. value, outlier in a single boxplot diagram? Suppose I have a data set c(2,4,5,7,12,14,15,13,8,5,23,98,11) Sumanta Basak. [[alternative HTML version deleted]]

Hi R-Experts, Can anyone tell me how Bloomberg data can be directly downloaded to R? Is there any package? Sumanta Basak. ------------------------------------------------------------------------------------------------------------------- This e-mail may contain confidential and/or privileged infor...{{dropped}}

Hi All, I,m trying to do a GARCH simulation in R 2.3.0 release in Windows XP. I've seen garchsim function but that is for garch (1,1) and ?garch gives an example for ARCH simulation. Can anyone help me how can i extend the help shown in ?garch to GARCH simulation? Please help me in this regard. Thanks, Sumanta Basak.

Hi R-Experts, I have a vector of length 72. I want to break it into 12 parts and want to take standerd deviation of each group. Please help me in this regard. Thanks, Sumanta. --------------------------------- [[alternative HTML version deleted]]

Can survreg() handle interval-censored data like the documentation says? I ask because the command: survreg(Surv(start, stop, event) ~ 1, data = heart) fails with the error message Invalid survival type yet the documentation for Surv() states: "Presently, the only methods allowing interval censored data are the parametric models computed by 'survreg'"

Hi R-Experts, I'm having a problem with reading a large data file which is in .csv format and size is 120 MB (app.). I was trying to use RODBC package but I found RODBCconnectExcel function only. And can I convert this file to .dbf format? How can I read this file? And also let me know if this was a file in .sas7bdat format, what should I do? Thanks in advance.

Hi, I am wondering how to specify interval-censored data in coxph? The example in the help page summary(coxph(Surv(start, stop, event) ~ x, data = test2)) is for counting process data, is the counting process data the same as interval-censored data? Thanks __________________________________

Hi All, Currently I'm working in FIGARCH process [Fractionally Integrated Generalized Autoregressive Conditional Heteroscedasticity]. I've already got the codes to do the process in S-Plus. Can anyone help me to do it in R? Thanks, SUMANTA BASAK. ------------------------------------------------------------------------------------------------------------------- This e-mail may

Hi All, I need a basic help from you. I've built a function like this, windowlength<-function(x) { z <- rep(seq(0,331,by=x-1)+1, each=2) zz <- z[-c(1,length(z))] ind <- as.data.frame(matrix(zz, nr=2)) j<-lapply(ind, function(x) mat[x[1]:x[2],]) cat("For",x/4,"month

Hello, I have interval censored data, censored between (0, 100). I used the tobit function in the AER package which in turn backs on survreg. Actually I'm struggling with the distribution. Data is asymmetrically distributed, so first choice would be a Weibull distribution. Unfortunately the Weibull doesn't allow for zero values in time data, as it requires x > 0. So I tried the

Hi All, I have certain combinations for which I have some value, e.g. 0 1 20 0 2 15 1 1 40 1 2 52 Now I need to sort this list for which I'll get the combination against the lowest value. In this case, 15, and the combination will be 0 2. -- SUMANTA BASAK. [[alternative HTML version deleted]]

Hi All, Currently I'm using DSE package for Kalman Filtering. I have a dataset of one dependent variable and seven other independent variables. I'm confused at one point. How to declare the input-output series using TSdata command. Because the given example at page 37 showing some error. rain <- matrix(rnorm(86*17), 86,17) radar <- matrix(rnorm(86*5), 86,5) mydata <-

Can anybody give me a neat example of interval censored data analysis codes in R? Given that suvreg(Surv(c(1,1,NA,3),c(2,NA,2,3),type="interval2")~1) works why does survreg(Surv(data[,1],data[,2],type="interval2")~1) not work where data is : T.1 T.2 Status 1 0.0000000 0.62873036 1 2 0.0000000 2.07039068 1 3 0.0000000