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Lucas García

Last seen: 1 dag ago Active since 2011

Programming Languages:
Python, C++, C, Java, R, MATLAB, Fortran
Spoken Languages:
English, Spanish

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  • GitHub Submissions Level 3
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Answered
Defuzzification
If you are using the Fuzzy Inference System editor, you can choose in the main GUI one of the defuzzication methods. The input f...

bijna 8 jaar ago | 0

Answered
About random number generators
As you have found out, using |<http://www.mathworks.com/help/matlab/ref/rng.html rng>| is the way to go with the current MATLAB ...

bijna 9 jaar ago | 0

| accepted

Answered
corrcoef - plotregression (which algorithm plotregression use)
|plotregression| actually uses the |regression| function (also from Neural Network Toolbox) to compute the R value. However,...

meer dan 10 jaar ago | 1

Answered
ODE15S problem with solver
Have you tried with all the different stiff solvers available? |ode15s|, |ode23s|, |ode23t| and |ode23tb|. It could be that the...

meer dan 10 jaar ago | 0

| accepted

Answered
bsxfun in GPU in PCT v5.2
The link you are referring to is actually from the current release, R2012a. bsxfun support for GPUArray data is a new feature in...

meer dan 10 jaar ago | 0

| accepted

Answered
Using uiimport and subsequent coded commands
Hi Jason, In order for your code to wait until uiimport has finished, make sure you request a return value from uiimport. ...

bijna 11 jaar ago | 0

| accepted

Answered
Remove ObsNames from MatLab dataset
The property ObsNames may be empty. Otherwise, it should have as many strings as observations. To remove these ObsNames from a d...

bijna 11 jaar ago | 0

| accepted

Answered
How to measure running time of a code using MATLAB
Take a look at the <http://www.mathworks.es/help/techdoc/ref/tic.html tic> and <http://www.mathworks.es/help/techdoc/ref/toc.htm...

ongeveer 11 jaar ago | 4

| accepted

Answered
Select a random number from a set
There are a few ways to do it. For example, using randi to select in which position is the card that you will extract. pos ...

ongeveer 11 jaar ago | 10

Answered
Neural Network code
Your code is basically creating a network with only one layer of neurons. With newfit this means that the network is trying to f...

ongeveer 11 jaar ago | 0

| accepted

Answered
how to find distance between two points?
You can use the <http://www.mathworks.es/help/toolbox/stats/pdist.html pdist> function in the Statistics Toolbox: e.g: distance...

ongeveer 11 jaar ago | 27

| accepted

Answered
how to separate out the lung sounds from heart sounds ?
You can use adaptfilt in the DSP toolbox for adaptive noise canceling. A "similar" <http://www.mathworks.com/products/dsp-system...

ongeveer 11 jaar ago | 0

Answered
checking of existing an string in a cell arrays
if ~any(strcmp(CELL,'a')) % Do Something else % Do Something else end

ongeveer 11 jaar ago | 34

| accepted

Answered
create vector of repeating elements (sort of)
One of many ways: >> w = 3; n = 8; >> v = repmat(1:n,w,1); >> v = v(1:end)

ongeveer 11 jaar ago | 0

Answered
Angle between two vectors in 3d
You can use the subspace function to find the angle between two subspaces: >> subspace([1;0;0],[0;1;0]) ans = 1...

ongeveer 11 jaar ago | 3

Answered
Combining vectors of day, month and year into a single date vector
dates = datenum([year,month,day]); Then you can plot your data vs. dates. Finally, use |datetick| to change the format o...

ongeveer 11 jaar ago | 3

| accepted

Answered
Error Message when using configured ANN (mismatch number of inputs)
The functions for creating networks in the toolbox will assume that if your input matrix is |n x m| it will represent |m| sample...

ongeveer 11 jaar ago | 0

| accepted

Answered
How to define the abstract symbolic of 'f=f(x,y,z)' at Matlab-Smbolic.
You can do the following: >> syms x y z; >> f = sym('f(x,y,z)'); >> g = x * f + y * f^2 + z; >> jacobian(g, [x,y,z]) ans ...

ongeveer 11 jaar ago | 1

Answered
find max of a vector between two indice
>> C = arrayfun(@(x) max(B(A(x):A(x+1))),1:length(A)-1) C = 2 9

ongeveer 11 jaar ago | 0

| accepted

Answered
Eliminate duplicate values in a row!
unique(A)

ongeveer 11 jaar ago | 0

| accepted

Answered
transposing the contents of the cell
Let |C| be your cell. You can do the following: C = cellfun(@transpose,C,'un',0);

ongeveer 11 jaar ago | 2

| accepted

Answered
spline? interp?
Do you have the curve fitting toolbox? If so, you can try using the functions |cscvn| for interpolating the spline and |fnplt|...

ongeveer 11 jaar ago | 0

Answered
Kohonen (example from help does not work)
Which release are you using? There is a known bug in R2010b and R2011a regarding newc and competlayer. <http://www.mathworks.co...

ongeveer 11 jaar ago | 0

Answered
Neural Network - Multi Step Ahead Prediction
Hi Jack, When using |narxnet|, the network performs only a one-step ahead prediction after it has been trained. Therefore, yo...

ongeveer 11 jaar ago | 20

| accepted

Answered
Converting a complex number to polar form and finding it's magnitude
r = abs(z); theta = atan2(imag(z),real(z)); Also... r = abs(z); theta = angle(z);

meer dan 11 jaar ago | 1

| accepted

Answered
complex numbers in Symbolic Toolbox
*[Updated]* Define the symbolic variables as real and use the function |simplify| when needed: >> syms a b c d real; >> F=a...

meer dan 11 jaar ago | 2

| accepted

Answered
how to increase iteration limit in glmfit ?
Iteration limit is set to 100 in glmfit. You cannot change it unless you edit the function and change it manually (type |edit gl...

meer dan 11 jaar ago | 0

| accepted

Answered
How to ignore punctuation in a user string while scanning for words (textscan())?
This removes the specified punctuation in your word: regexprep(word, '[-!,.?]', '')

meer dan 11 jaar ago | 2

| accepted

Answered
Breakpoints unpredictable in R2011a
Hi Robert, I haven't been able to reproduce this issue, but I have heard it from other users, so that makes it empirically a p...

meer dan 11 jaar ago | 1

Answered
How to get size of an object
Unfortunately, there is no way to check the amount of memory that is being occupied by class objects, since MATLAB is storing re...

meer dan 11 jaar ago | 3

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