Professional Interests: Signal processing

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...

oltre 5 anni ago | 1 answer | 0

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...

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...

circa 6 anni ago | 0

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...

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...

oltre 6 anni ago | 5

| accepted

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...

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...

oltre 6 anni 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...

oltre 6 anni ago | 1 answer | 0

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 ...

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 ...

oltre 6 anni ago | 1

| accepted

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 =...

oltre 6 anni ago | 2 answers | 0

Answered

PARFOR behavior sensitive to comments???

Matt, what happens if you create the anonymous function inside the parfor loop? If that helps, but if in actual code you need to...

PARFOR behavior sensitive to comments???

Matt, what happens if you create the anonymous function inside the parfor loop? If that helps, but if in actual code you need to...

oltre 6 anni ago | 1

Answered

Is there a way to make device memory persist between CUDA MEX calls

Matt, see if the methods discussed in the following thread could be adapted for your use: http://www.mathworks.com/matlabcentral...

Is there a way to make device memory persist between CUDA MEX calls

Matt, see if the methods discussed in the following thread could be adapted for your use: http://www.mathworks.com/matlabcentral...

circa 7 anni ago | 0

Answered

Arrayfun scalar expansion (non-uniform output)

Use a for loop instead of arrayfun?

Arrayfun scalar expansion (non-uniform output)

Use a for loop instead of arrayfun?

oltre 7 anni ago | 0

Question

value classes - do you use them? I must be doing something wrong...

So I can't really recall ever creating a value class, all mine seem to be handle classes. Is that the same as your experience? U...

oltre 7 anni ago | 1 answer | 1

Question

How to perform a 'chunked average', similar to a rolling average?

Hi, I don't know what the right terminology is, but I'd like to know if there is a nice vectorized syntax for calculating a 'chu...

oltre 7 anni ago | 1 answer | 0

Question

Are accumarray/cellfun/arrayfun/etc multithreaded?

As per the subject line, anyone know? If not, could this be done by TMW without a lot of effort?

oltre 7 anni ago | 2 answers | 2

Question

Conditional cumsum - how to create?

This is probably easy, but my brain isn't working today... How can you do the following operation in a vectorized way? I'd th...

oltre 7 anni ago | 2 answers | 0

Question

Generate a comma-separated list from a numeric array?

Is there a way to generate a comma-separated list from a numeric array without generating a temporary cell array? If not, would ...

oltre 7 anni ago | 1 answer | 3

Question

onCleanup - do different things based on how you entered it.

Hi, I've got a function where we want to run some code if there is an error, or a Ctl-C, but not if the function exits normally....

oltre 7 anni ago | 1 answer | 0

Question

Anyone figure out how to send code from FireFox/Chrome to MATLAB for evaluation?

In the MATLAB Help Browser, you can right-click a text selection and choose 'Evaluate Selection' to evaluate it in the MATLAB Co...

oltre 7 anni ago | 2 answers | 1

Question

Do you ever make use of non-uniform arrays of structures?

Loren explained in the following comment on her blog that certain vectorized struct assignment syntax is not currently allowed b...

oltre 7 anni ago | 2 answers | 0

Question

Using conditional breakpoints to print out value

Hi, I'm interested if it would be possible to use/abuse(?) conditional breakpoints to print out the value of a variable to the c...

oltre 7 anni ago | 3 answers | 1

Question

How to create variability charts?

I'm trying to find a way to recreate <http://www.jmp.com/support/help/images/Comparing_Multiple_Variables_4.png JMP-style variab...

oltre 7 anni ago | 2 answers | 0

Question

array of structures to cell array via comma-separated list

Suppose I have the following array of structs: data(1).f1 = 1; data(2).f1 = 2; data(1).f2 = 'foo'; data(2).f2 = 'b...

oltre 7 anni ago | 1 answer | 0

Answered

conditional array extraction based on control array

If I understand your question correctly, try this: z=y(intersect(x,c));

conditional array extraction based on control array

If I understand your question correctly, try this: z=y(intersect(x,c));

oltre 7 anni ago | 0

Question

Strategies to store/load 'configuration' data

Hi, we often have the need to store/load configuration data, for hundreds of cases. Current practice is to store it in an M-file...

circa 8 anni ago | 2 answers | 0

Question

Discussion about Answers & Votes

Hi all, a couple questions/thoughts for the community: 1) Would you like to be able to Accept multiple answers? I think this ...

circa 8 anni ago | 5 answers | 4

Question

Make dataset arrays part of base MATLAB?

Hi all, I was wondering if anyone else wished that the Statistic Toolbox's dataset arrays were included in base MATLAB. They are...

circa 8 anni ago | 3 answers | 2

Question

How to create a struct from a cell array of fieldnames and a cell array of values?

How can you take a cell array array of fieldnames and a cell array of values, and convert them into a structure without looping?...

circa 8 anni ago | 2 answers | 0

Question

How to SAVE data to disk in a background thread?

Has anyone figured out a way to run the SAVE command in a background 'thread', so that MATLAB can keep on running code while the...

circa 8 anni ago | 2 answers | 0