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12h
comment Converting code from Matlab to Mathematica
I wrote an implementation of k-means in this answer.
2d
awarded  Generalist
Sep
17
comment Is garbage collection broken in version 10.0.0?
I don't have 10.0.1 or Mathematica with me now, but what you're describing doesn't seem unexpected. I think if you re-evaluate the top cell a second time, you should see {"foo$"} in the output.
Sep
17
comment Conceptual understanding of patterns
You should read this section in Leonid's book.
Sep
16
comment How do I plot the images of oriented curves under complex transformation?
I used to have a "systematic way to obtain a nice parametrization of an arbitrary conic" — it was called "Ask J. M." :)
Sep
15
comment How do I bandpass a signal in Mathematica 8
@Mr.Wizard No, sorry. It's a lot of time commitment and detail that's well beyond the scope of this site. OP still hasn't replied to my question re: MATLAB. If that's the case, then the second example here would be the best way to proceed.
Sep
15
comment How do I bandpass a signal in Mathematica 8
A crude filtering could be done with Fourier, a window and InverseFourier. If you want to use specific FIR/IIR filters with certain guarantees of performance in the pass/stop bands, then you're going to have to write a lot of the code yourself. If you have access to MATLAB (and the DSP toolbox), then I suggest using the functions from it in Mathematica 8.
Sep
14
comment Random symmetric matrix
Ah, yes of course.
Sep
14
comment Random symmetric matrix
Why not just do $M = (A + A^T)/2$? I understand that while the elements are iid, the diagonals and off-diagonals have different variances, but if you're primarily concerned with the eigenvalue statistics, this should be a faster way of generating the matrices. The eigenvalues of this and your matrix should both be Wigner distributed.
Sep
9
awarded  Announcer
Sep
8
comment Show only the outlines of graphic primitives
You can also use c_?ColorQ so that Hue, CMYKColor, GrayLevel, etc. are all recognized.
Sep
7
awarded  Good Answer
Sep
7
revised How can I visualize an array of very small vectors spaced on very large grid?
appended answer 59088 as supplemental
Sep
3
awarded  Good Answer
Aug
30
comment Hypergeometric function with a matrix argument
The paper has pseudocode that is fairly easy to read and implement, so perhaps you can translate it to Mathematica?
Aug
29
awarded  Good Answer
Aug
28
comment Plot a one-dimensional list of numbers as a column/row of labeled colored squares
I got a flag that this is "not an answer"... I understand that you did not intend for it to be one and I agree that it's good to share your incomplete progress/thoughts so far if it'll be of help to others. So, how about making it an edit to the question? :)
Aug
27
comment Local variables whose definitions depend on each other
I think it would be better to post this answer to the related main post so that it can be easily found (see link in question)
Aug
24
comment Bandpassing EEG's using Mathematica's Bandpass Function
You need a factor of π and also need to mention the SampleRate. See my answer here for an example.
Aug
24
answered Tools for Importing/working with SEED seismographic data in Mathematica?