Jose Marques
Petrobras / UFSJ
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Youtube channel: https://www.youtube.com/channel/UC2WovW85lxhSQndD97lPaSA
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Accept 2 answers given by other contributors
Awarded to Jose Marques on 15 Feb 2022
10 of your answers have been accepted
Awarded to Jose Marques on 15 Feb 2022
Accept 1 answer given by other contributors
Awarded to Jose Marques on 26 Jan 2018
Solve all the problems in CUP Challenge
Awarded to Jose Marques on 10 Sep 2017
Solve a problem for the first time
Awarded to Jose Marques on 10 Sep 2017
3 of your answers have been accepted
Awarded to Jose Marques on 09 Sep 2017
Answer 3 questions that were unanswered for more than 30 days
Awarded to Jose Marques on 08 Sep 2017
Provide your first answer ever to someone else's question
Awarded to Jose Marques on 08 Sep 2017
Feeds
Frage
How to select the number of samples to train a Machine Learning algorithm?
I working in a dataset of 12000 samples concerning about 5 years of an industrial process. It is likely that during this ti...
fast 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Error when trying to do 'Hyperparameter Optimization' using Parallel Computing
Hello, I am trying to optimize the function fitrsvm. But when I set 'true' to the 'UseParallel' property, I am getting a e...
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
PI (Plant Information) system from OSIsoft integration
Does anyone already integrated the PI (plant information) system (PIMS of OSIsoft) with MATLAB? I intend to use the Machine Lear...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Setting the best training / validation ratio in a Neural Network
I am using a Neural Network to make a regression, using 10% of data to test. But how can I set the ratio values of training and ...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
100% precision in training set with SVM classifier
<</matlabcentral/answers/uploaded_files/108243/Gr%C3%A1fico%20treinamento%20com%20e%20sem%20ru%C3%ADdo%20_%20mao.png>> Hello!...
mehr als 6 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
Clustering and feedforwardnet giving always the same result
Hello! I am having some problems with clustering and feedforwardnet. The idea is compare these methods and improve the accuracy ...
fast 7 Jahre vor | 0 Antworten | 0
0
AntwortenHow to display multiple images side by side and on top/bottom of each other?
Try to use subplot. <https://www.mathworks.com/help/matlab/ref/subplot.html>
fast 7 Jahre vor | 0
Applying Threshold to Video Pixels
Try to transform the image in a double matrix. readFrame gives a uint8 output.
fast 7 Jahre vor | 0
Matlab cannot recognize kinect
Hello. I tested Kinect at several MATLAB versions. Just work in MATLAB 2013.
fast 7 Jahre vor | 0
Using a while loop to determine and display the number of terms it takes for a given series to converge within 0.01% of its exact value ((pi^2)/6)?
In the first iteration, seem that nn == 0 and nn_sum == (1/nn^2) which means a zero division. Maybe you can include a if stateme...
etwa 7 Jahre vor | 0
Custom neural network - input mismatch
Please, verify the order of elements. Maybe you can try to transposte the inputs matrix.
etwa 7 Jahre vor | 0
How to find a symbolic derivative?
Use diff function: syms f(x) f(x) = sin(x^2); df = diff(f,x) Result: df(x) = 2*x*cos(x^2) <https://www.m...
etwa 7 Jahre vor | 0
I do not have any licenses associated with your MathWorks Account.
You can use this version. It is a free Matlab Trial for 30 days. <https://www.mathworks.com/programs/trials/trial_request.htm...
etwa 7 Jahre vor | 0
How to solve Index exceeds matrix dimensions?
Have you verify the size of the images? They must be the same.
etwa 7 Jahre vor | 0
Separating Connected Objects Effectively in Image
Hello. Have you tried "imopen"? <https://www.mathworks.com/help/images/ref/imopen.html> Please, post your code and figures...
etwa 7 Jahre vor | 0
How to know the response time of a system in simulink?
For the response to a step input: step(sys); For the response to a ramp input: ramp(sys); where sys is the syste...
etwa 7 Jahre vor | 0
Frage
Missing properties of Kinect 360 V1 Matlab 2017a - no TrackingMode, no Skeleton
Hello evereyone! Has anyone used the Kinect 360 v1 in Matlab R2017a? I have some troubles connecting Kinect 360 V1 with ...
etwa 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Has anyone used the Kinect 360 v1 in Matlab R2017a?
It just appears few properties when I try to communicate with Matlab R2017a. The Kinect v1 works fine with the Matlab R2013a.
etwa 7 Jahre vor | 0 Antworten | 0
0
AntwortenUnexpected Matlab Expression ?
Natalie, try this: E= [-1 1] * 3 *( exp (1) .^ ((-x)/4)) E will be a matrix 1x2 that first element is positive value and...
etwa 7 Jahre vor | 0
| akzeptiert
Deleting sequence of igual values from a matrix
Hello Felipe. Try this: A = [0 0 0 1 1 1 2 2 2 3 3 3, 0 1 2 2 3 4 5 6 7 8 9 10]; [C, ia, ic] = unique(A(1,:)); C...
etwa 7 Jahre vor | 1
| akzeptiert
Gelöst
Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...
etwa 7 Jahre vor
Gelöst
Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...
etwa 7 Jahre vor
Gelöst
Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...
etwa 7 Jahre vor
Gelöst
Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...
etwa 7 Jahre vor
Gelöst
Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...
etwa 7 Jahre vor
Gelöst
Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...
etwa 7 Jahre vor
Gelöst
Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...
etwa 7 Jahre vor
Gelöst
Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...
etwa 7 Jahre vor
Gelöst
Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...
etwa 7 Jahre vor
Gelöst
Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....
etwa 7 Jahre vor
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