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Eric Sampson


Seagate Technology LLC

105 total contributions since 2013

Professional Interests: Signal processing

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Responded


Re: Issue with writetable: doesn't write
Try downloading the MS Process Monitor application*, and then set it to monitor the folder where you're writing the file (or cre...

1 year ago | 1076 views

Responded


Re: loadlibrary with many headers
Great to hear! I'd suggest contacting TMW tech support by email or phone and asking them to log this as an official feature requ...

1 year ago | 1193 views

Responded


Re: loadlibrary with many headers
Also it looks like the code for parsing the old .bat mexopts files is still in current MATLAB, it's just not documented and when...

1 year ago | 1193 views

Responded


Re: loadlibrary with many headers
OK thanks for the info Jim. I'd suggest contacting Tech Support and providing them that info, because the group that does MEX is...

1 year ago | 1193 views

Responded


Re: mldivide for a sparse matrix: bypassing the algorithm for appropriate solver
try running the following command once: spparms('spumoni',2) And then run a single mldivide using representative data. You shou...

1 year ago | 789 views

Responded


Re: loadlibrary with many headers
Jim, you don't need to edit the .xml file, just use the -L option (path) and -l (files, it's a lowercase ell) option to specify ...

1 year ago | 1193 views

Responded


Re: Compare handle objects in mex-file
I don't know if it's a language barrier or what, but I'm just getting more and more confused... a very short example code would ...

1 year ago | 1248 views

Responded


Re: Compare handle objects in mex-file
Couldn't you change 'buffer' into an (non-cell) handle array, and then use the built-in handle relational operator EQ to perform...

1 year ago | 1248 views

Responded


Re: Compare handle objects in mex-file
snip) (snip) I'm probably just dumber than James, but I can't quite understand your use case. Would you maybe be able to post a ...

1 year ago | 1248 views

Responded


Re: How to avoid namespace collisions and shadowing bugs?
Also take a look at private functions: http://www.mathworks.com/help/matlab/matlab_prog/private-functions.html For your first q...

1 year ago | 1251 views

Responded


Re: Constant variables & anonymous functions
Just throwing this out here as a random historical trivia note, in case in helps other new MATLAB users develop a 'mental model'...

1 year ago | 1904 views

Responded


Re: Best way to coordinate computation between SQL & Matlab?
snip) Thanks for the description, that helps me understand what you're after. I can suggest two types of approaches: 1) keep y...

1 year ago | 1883 views

Responded


Re: Best way to coordinate computation between SQL & Matlab?
I'm intrigued by your requirements, but I don't quite understand them fully... Would you mind posting more information about wha...

1 year ago | 1883 views

Question


Dealing with Change Notification Handle issues with M files on network shares - ideas?
Hi all, have any of you come up with solutions (either client or server settings) to the infamous "Warning: Could not get change...

1 year ago | 1 Answers | 0

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Responded


Re: Poor stepchild Fortran lack of support...
Not what you're looking for, but Intel used to make their compilers available free for non-commercial purposes, you could try si...

1 year ago | 2036 views

Responded


Re: What's the best method to create a zero vector?
James, I noticed in R2015a that there are now two documented functions for creating uninitialized numeric arrays/matrices, thoug...

2 years ago | 1959 views

Responded


Re: how to create empty datetime array?
See http://www.rubberduckdebugging.com/ :D

2 years ago | 6044 views

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Re: how to create empty datetime array?
Hi Bruce, try one of these: t = t =

2 years ago | 6044 views

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Re: Memory issue on large hex data files
Ahh 429, how I do not miss thee :O Try getting away from all the conversions to/from character representation of binary numbers...

2 years ago | 817 views

Responded


Re: MATLAB mistaken a structure with a figure
snip) Thanks Mike. It was thinking that perhaps a solution which would satisfy both the people you described above and the peop...

2 years ago | 6303 views

Responded


Re: MATLAB mistaken a structure with a figure
FWIW I agree with Bruno, IMHO the fact that LOADing a new-style graphics object from a .mat file has the side effect of opening ...

2 years ago | 6303 views

Answered
Multithreaded sparse matrix multiplication?
I believe the sparse matrix code is implemented by a few specialized TMW engineers rather than an external library like BLAS/LAP...

2 years ago | 0

Responded


Re: MATLAB 2012a and later do NOT support Visual C++ 2010 Express
Steve, I'd love to ship MATLAB ship with the Clang compiler built-in instead of LCC, it would a) offer multi-platform 32/64-bit ...

2 years ago | 28945 views

Answered
MATLAB R2014b Error on Startup
Try issuing this command (save your original PATH to a .mat file if you care about wanting to be able to recreate it): restor...

2 years ago | 4

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Answered
Where are the mathematics behind scatteredInterpolant documented
If you contact Support and ask very nicely, they might be able to provide information about this... I have vague recollections t...

2 years ago | 0

Question


How to generate square-ish rectangle dimensions for any specified area
Hi all, given an arbitrary positive integer N, how can I calculate two integer factors A and B subject to A*B = N with the restr...

2 years ago | 1 Answers | 0

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Responded


Re: R2014a performance gains and cpu load!
Try running your code through the Profiler in both versions, and then compare the results to see what changed :)

2 years ago | 1576 views

Answered
Windows Custom Device Driver Control
Hi Tom, my initial thoughts would be to investigate one of the following: a) write a C/C++ dll API for your driver, and then ...

2 years ago | 1

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Question


Fast location of zero crossings with interpolation
Hi all, I've got data that looks like this: clean = sin(1:0.2:2e5); noise = -0.03 + (0.06).*rand(size(clean)); data =...

3 years ago | 2 Answers | 0

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