1. B

    Number of components - ICA?

    Hi everybody, I wanna implement independent component analysis on my data, for this reason I'm using both AnalyzeFMRI and FastIca packages. I only have ione doubt: how can you calculate the number of components? Some pares suggest to use the minimum description length principle, but it seems...
  2. B

    Problem with [,,,1]

    Hi everybody, I have some problems with this operator [] I have this code: for (file in files) { + img <-[,,,1] + mask3D <- mask3D*(! + } Error in mask3D * (! : non-conformable arrays > dim(! [1] 64 64 18 > for (file...
  3. B

    Conversion of DICOM in Analyze img - Package: oro.dicom

    Hi everybody, I'm trying to convert my Dicom images in the Analyze tipe, but I found some problems. I wanna access the header info (with a function of the package "Analyze fMRI"), but it still gives me errors. Code: > dcmList <- readDICOM(system.file("central slice", package="oro.dicom"))...
  4. B

    Analysis on R

    Hi there, I began using R last week and... It drives me crazy! However, I'm using the package "AnalyzefMRI" and that's right, but I have some problems related to atomic vector. Here's my code: >library(AnalyzeFMRI) > fM0223_004 <- "C:/Users/IVACCHIERI/Downloads/fM00223.fM0223_004.img"...
  5. S

    lmPerm - has it been removed?

    I can't seem to find this package - "lmPerm" (linear model permutation test). On the page it says " Package ‘lmPerm’ was removed from the CRAN repository.Orphaned on 2014-02-11: the maintainer is unresponsive. " What does this mean...
  6. trinker

    Understanding multilevel modeling

    I'm trying to learn a bit more about multilevel modeling so I'm going to start this thread here and post questions about the process as I know there are several regulars here who use multilevel models frequently. I know the nmle package exists but I'm mostly trying to figure out how lme4 works...
  7. trinker

    R can't find inconsolata.sty

    When I updated MikTex on Windows 7, R no longer would compile PDFs. * checking PDF version of manual ... WARNING LaTeX errors when creating PDF version. This typically indicates Rd problems. LaTeX errors found: !pdfTeX error: pdflatex.EXE (file ts1-zi4r): Font ts1-zi4r at 540 not found...
  8. trinker

    Devel Version of R on Windows

    Dason anserwed how to get the devel. version of R for Linux here. I am attempting the same for Windows and can't seem to get the devel. version up and running.
  9. trinker

    R + Mint (open R with wd of startup dir)

    I recently migrated from windows to linux mint + cinnamon. There's a habit I picked up as a windows user I like that I'd like to replicate but can't. I like this for my work flow though you make think it's silly. But the question is can I do this in mint. In this video...
  10. trinker

    Get latest version of R on linux (Mint)

    This thread is just to serve as a marker for future searchers as Dason answered this for me: sudo apt-key adv --keyserver --recv-keys E084DAB9 sudo sh -c "echo 'deb quantal/' >> /etc/apt/sources.list" sudo apt-get...