search for: testts

I am trying to use KalmanSmooth to smooth a time series fitted by arima (and with missing values), but the $smooth component of the output baffles me. Look at the following example: testts <- arima.sim(list(ar=0.9),n=100) testts[6:14] <- NA testmod <- arima(testts, c(1,0,0)) testsmooth <- KalmanSmooth(testts, testmod$model) par(mfrow=c(2,1)) plot(testsmooth$smooth, type="l") plot(testsmooth$var, type="l") Look at the lower panel plot, how the uncertai...

Hello, my data is contained in nested lists (which seems not necessarily to be the best approach). What I need is a fast way to get subsets from the data. An example: test <- list(list(a = 1, b = 2, c = 3), list(a = 4, b = 5, c = 6), list(a = 7, b = 8, c = 9)) Now I would like to have all values in the named variables "a", that is the vector c(1, 4, 7). The best I could come up

Dear R-user, I am a R beginner, and therefore my questions are very basic. I have a simple problem: I would like to plot 100 time series each containing 55 steps. The data are stored in a matrix of 100 columns and 55 rows. The first problem is to load the data from a file: I tried the read.table(), the scan() and the matrix(scan()) options, but I have problems to allocate the single columns.

Dear R users, I have a function (below) which encompasses several tests. However, when I run it, only the output of the last test is displayed. How can I ensure that the function root(var) will run and display the output from all tests, and not just the last one? Thank you, b. root <- function(var) { #---Phillips-Perron PP.test(var, lshort = TRUE) PP.test(var, lshort = FALSE)

Having a strange problem. Running smbclient to an NT4 Sp4 workstation for testing. using tar c /some/local/dir using the default config except for machine name and workgroup in smb.conf I've tried tweaking the smb.conf to no avail. running on Redhat 6.0, but using samba 2.0.4b for the large filesystem patch... running on 100bt switched with 3c905B 100bt cards on both ends, but problem occurs

hi there, I am about to embark on a mission critical financial web application, and was wondering weather ruby on rails is the best fit for this type of project. More specifically I am worried about floating point errors. Would it be more appropriate to use a more statically typed framework (.NET)? thankyou. -- Posted via http://www.ruby-forum.com/.

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A colleague is receiving some data from another person. That person reads the data in SAS and it takes 30s and uses 64k RAM. That person then tries to read the data in R and it takes 10 minutes and uses a gigabyte of RAM. Person then goes on to say: It's not that I think SAS is such great software, it's not. But I really hate badly designed software. R is designed by