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Hi George, I'll partition this problem into 2 pieces: (1) importing the data file; (2) taking PSD and plotting Let's say your file looks like this: time1, accel1 time2, accel2, ... timeN, accelN where from your...
Hi, I accidentally uncovered what appears to be a parsing bug within Manipulate.  The documented syntax is: Manipulate[expr, ...]where expr can be one or a compound expression, e.g.: Manipulate[exprA, ...]OR[code] ...
Thanks, Christopher, that is a helpful workaround.  Yet I'm still concerned that implementation of Quantity[], not to mention a portion of its documentation, is seriously flawed.  I've reported this to Wolfram Support. 
Hi again Luca, Here's another cut that just about solves the "core" problem.     Here's what's new and going on: * Now using Manipulate's Initialization option to define epiPFunc[], which contains the components of the Epilog to the DensityPlot...
Hi, I see your scans from Insight are 2-byte signed integer voxels encoded (within the NRRD file) with GZIP.  I'm guessing you just want to get to the raster datacube, and don't care about all the interpolation and sampling management stuff that the...
Hi, I just was invited to this Wolfram Community (private) Beta, and so far things look alluring.  However, I am very curious as to what WRI envisons and its intentions for this Community with respect to existing Mathematica-oriented online groups...