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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... -
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Problem with [,,,1]
Hi everybody, I have some problems with this operator [] I have this code: for (file in files) { + img <- f.read.analyze.volume(file)[,,,1] + mask3D <- mask3D*(!is.na(img)) + } Error in mask3D * (!is.na(img)) : non-conformable arrays > dim(!is.na(img)) [1] 64 64 18 > for (file... -
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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"))... -
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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"...