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Arturo Moncada-Torres


81 total contributions since 2011

Biomedical Engineer and volleyball enthusiast driven by improving people's health through the development of novel medical technology.

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Submitted


Image Profiler
Generate horizontal and vertical profiles of an image.

3 years ago | 1 download |

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Peaks over threshold counting events
Based on your requirements, I would do the following: data = Hs_hr(:,1); thr = 7; % Set data smaller than thresho...

3 years ago | 0

| accepted

Submitted


Create Spectogram of Ripple Stimulus
Generate sample spectogram of a ripple stimulus.

4 years ago | 2 downloads |

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how to insert pointers/markers
I think <http://www.mathworks.com/help/releases/R2012a/techdoc/creating_plots/f0-4741.html this> is what you are looking for.

6 years ago | 0

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Submitted


ECG IIR Notch Filtering with Transient Suppression
Implementation of the ECG IIR notch filtering with transient suppression proposed by Pei and Tseng

6 years ago | 14 downloads |

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Dynamic addressing of files and folders for inputting data
I believe |<http://www.mathworks.ch/ch/help/matlab/ref/dir.html dir>| is your best choice. For example, if you are looking for E...

7 years ago | 0

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A question about hold images
If I understand correctly, you could just average the images (assuming they have the same dimensions): IAverage = (I1 + I2)...

7 years ago | 0

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how to use colormap in matlab?
A very <http://lmgtfy.com/?q=different+colormaps+in+one+image+matlab quick google search> threw this as <http://www.mathworks.ch...

7 years ago | 0

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How can I access element with same index from multiple cells
I suggest you to use <http://www.mathworks.ch/ch/help/matlab/ref/cellfun.html cellfun>, which applies a function to each element...

7 years ago | 1

Answered
request user to press enter key
You can try Jos's <http://www.mathworks.com/matlabcentral/fileexchange/7465-getkey getkey> function. What this function does is ...

7 years ago | 0

Answered
What are the steps for making a 'fft filter'?
Try checking this <http://www.mathworks.com/matlabcentral/answers/9647-use-fft-x-as-a-highpass-filter previous post>. Although i...

9 years ago | 0

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How to include a character with a macron (horizontal bar) in a legend?
Complementing Oleg's answer, I include one of the <http://www.mathworks.ch/matlabcentral/newsreader/view_thread/114116 workaroun...

9 years ago | 1

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problem with making a very simple matrix
The problem is that you are trying to compare floating point numbers. This is clearly explained in the <http://matlab.wikia.com/...

9 years ago | 0

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Generating signals
I assume that your binary signal is periodic (+1, -1, +1, -1, ...). You would have to do something like this: % Sampling ch...

9 years ago | 0

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Subscript assignment mismatch with the use of 'find'
I recommend you to look at this part of the <http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_...

9 years ago | 1

Answered
GUI: how to insert png image with original resolution and transparent background?
To keep your image in its original scale, you have include the following line just after the one where you display the image in ...

9 years ago | 1

Answered
How to plot error bars
I would recommend you to take a look at the following FEX submissions: * <http://www.mathworks.ch/matlabcentral/fileexchange/...

9 years ago | 1

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filter sampled excel data in matlab
Filtering in MATLAB is something very easy. Take a look at the |<http://www.mathworks.ch/help/toolbox/signal/butter.html BUTTER>...

9 years ago | 1

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Answered
PCA: number of attributes much bigger than number of data samples
I recommend you to look at this <http://matlabdatamining.blogspot.com/2010/02/putting-pca-to-work.html great tutorial> by <http...

9 years ago | 0

Answered
How to make matrix a possitive definite
I understand that you may need as few training samples as possible. However, this is not always good, since your performance wil...

9 years ago | 1

| accepted

Answered
Standarization before feature selection
It all depends on your application. It is not a golden rule, but can be handy in some cases. For example, let's suppose you wil...

9 years ago | 1

| accepted

Answered
Fourier transform of text data
I recommend you to check this <http://blinkdagger.com/matlab/matlab-introductory-fft-tutorial/ wonderful tutorial> by Quan Quach...

9 years ago | 0

Answered
correlation b/w to Diode I_V curves
There are several ways to calculate the error. Let's suppose the following: theoretical = 0:10; experimental = awgn(theoret...

9 years ago | 0

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problem with if statment
The problem is that _dec2bin_ returns the binary number in a string and *not* in a numeric format. You can try any of these two ...

9 years ago | 0

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regarding specific files from folder
Does this solution work for you? I have not tested it, let me know if it works. files = dir('*.h5'); % Find the files with...

9 years ago | 1

| accepted

Answered
Chebyshev Type I low pass filter design
I recommend you to use the <http://www.mathworks.com/products/signal/demos.html?file=/products/demos/shipping/signal/introfdatoo...

9 years ago | 0

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Answered
Individual files reading
On a quick thought, it would be something like this: files = dir('*.h5'); % Find the files with extension .h5 in the curre...

9 years ago | 1

| accepted

Answered
Anomaly with the number 32??
To know if a cell array is empty, I would recommend you to do the following: myEmptyCells = cellfun(@isempty,cellArray); As ...

9 years ago | 0

Answered
How do I display a graph with a calculate function in GUI?
I have tried the following code and it works. The problem is that x and y were not the same size. Insert the following code. ...

9 years ago | 0

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Answered
Retain current directory
I recommend you to check the <http://www.mathworks.com/help/techdoc/ref/cd.html cd function documentation>. On a quick thought, ...

9 years ago | 0

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