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John Doe


University of Warwick

Active since 2011

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Mex compiler giving error
Trying to compile this mex file http://escabe.org/joomla/index.php/7-projects/matlab/1-joymex2 with the command mex('-v',...

8 years ago | 0 answers | 0

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Question


xcorr says my signals have near perfect correlation which is impossible
I am comparing 2 signals. One signal had to be resampled to equalise the sampling rates. The corrcoef function gives a value of ...

9 years ago | 1 answer | 0

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answer

Question


How do I convert this integral equation to matlab code?
I'm trying to write a matlab program for a Lock-in Amplifier, based on this equation: <<http://i.imgur.com/jTe950P.png>> w...

9 years ago | 1 answer | 0

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answer

Question


Matlab program that runs fine in Windows gives multiple errors in Linux.
Both versions are 2012b. The program is: clear all matlabpool; for testSet = 8 %:18 if testSet < 10 ...

11 years ago | 0 answers | 0

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Question


Parallel computing not working on remote cluster
Hello I have access to a cluster computer located in London and am having trouble getting the program running in parallel. I can...

11 years ago | 0 answers | 0

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Answered
Multiple sampling frequencies on one input device
You can use the matlab function "downsample(signal, 10)" or "decimate(signal, 10)" on channels 0-2 which will convert the signal...

11 years ago | 0

Answered
Trouble getting data outside of parfor loop
The answer to this was that matlab does not like "parfor variable +/- integer" as it thinks it'll be used to reference a previou...

11 years ago | 0

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Question


Trouble getting data outside of parfor loop
Hello, I have a process that needs to be applied to a 90 trials of an 11 electrode signal. The result of each trial is in the fo...

11 years ago | 2 answers | 0

2

answers

Question


Trouble using Common Spatial Patterns
Hello, I'm trying to use CSP on multiple trials of EEG data but I am unsure if it is correct. There are two classes, think left ...

11 years ago | 0 answers | 0

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Question


Is there an LDA method that matches the format "D_t= W_Tc^T * E_t + w_0"
<<http://i49.tinypic.com/245xc2h.jpg>> Where W_Tc^T are the weights, E_t the signal/data and w_0 the offset. With D_t < 0 mea...

12 years ago | 1 answer | 0

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answer

Question


Why does this program return complex numbers?
I am using this code http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/doc/voicebox/distispf.html to calculate the Itakura-Sait...

12 years ago | 1 answer | 0

1

answer

Question


How to use the outputs of the Stepwise function?
Hello, I am classifying P300 responses using matlab and all the papers recommed Stepwise Linear Discriminant Analysis. I have in...

13 years ago | 1 answer | 0

1

answer

Question


How to pass variables to a callback function and back again?
Hello, I have a callback function that is executed every so often. What I wish to do is pass a matrix and an integer (e.g. x = [...

13 years ago | 1 answer | 1

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answer

Question


How to execute at a specific time?
Hello, I wish to run a script every 0.3333 seconds. The time it takes the computer to run it is much less than that. How woul...

13 years ago | 2 answers | 0

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answers