Lucas García

Last seen: Today | Attivo dal 2011

Followers: 0 Following: 0

Contatto

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

Statistiche

All

Visualizza badge

Feeds

Risposto
Why MATLAB uses the Newton’s Gradient Descent as the solver for fitcnet?
L-BFGS is used both in in fitcnet and fitrnet. These functions ship in Statistics and Machine Learning Toolbox and allow you to ...

circa un anno fa | 0

| accettato

Risposto
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...

circa 9 anni fa | 0

Risposto
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 ...

circa 10 anni fa | 0

| accettato

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

oltre 11 anni fa | 1

oltre 11 anni fa | 0

| accettato

Risposto
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...

quasi 12 anni fa | 0

| accettato

Risposto
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. ...

oltre 12 anni fa | 0

| accettato

Risposto
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...

oltre 12 anni fa | 0

| accettato

Risposto
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...

oltre 12 anni fa | 5

| accettato

Risposto
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 ...

oltre 12 anni fa | 10

Risposto
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...

oltre 12 anni fa | 0

| accettato

Risposto
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...

oltre 12 anni fa | 28

| accettato

Risposto
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...

oltre 12 anni fa | 0

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

oltre 12 anni fa | 37

| accettato

Risposto
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)

oltre 12 anni fa | 0

Risposto
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...

oltre 12 anni fa | 3

Risposto
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...

oltre 12 anni fa | 4

| accettato

Risposto
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...

oltre 12 anni fa | 0

| accettato

Risposto
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 ...

oltre 12 anni fa | 1

Risposto
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

oltre 12 anni fa | 0

| accettato

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

oltre 12 anni fa | 0

| accettato

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

oltre 12 anni fa | 2

| accettato

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

oltre 12 anni fa | 0

Risposto
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...

oltre 12 anni fa | 0

Risposto
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...

oltre 12 anni fa | 20

| accettato

Risposto
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);

oltre 12 anni fa | 1

| accettato

Risposto
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...

oltre 12 anni fa | 2

| accettato

Risposto
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...

oltre 12 anni fa | 0

| accettato

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

oltre 12 anni fa | 2

| accettato

Risposto
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...

oltre 12 anni fa | 1

Carica altro

Lucas García

Statistiche

File Exchange

Community

File Exchange

File Exchange

File Exchange

File Exchange

MATLAB Answers

MATLAB Answers

MATLAB Answers

Cody

Feeds