Search results: answered_by_id:19642 - MATLAB Answers

215 questions found in Answers

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3

answers

3 votes
1 view

Plot confusion doesn't work

Asked by Olga Zhukova on 17 Dec 2013

Latest activity Commented on by Tapan on 11 Aug 2023

AI and Statistics Statistics and Machine Learning Toolbox Regression Support Vector Machine Regression

4

answers

0 votes
5 views

SVM classification with different kernels

Asked by caterina on 27 Dec 2012

Latest activity Commented on by Jeremy Huard on 31 Jan 2023

AI and Statistics Statistics and Machine Learning Toolbox Classification Discriminant Analysis

1

answer

0 votes
4 views

Compare two trees generated using same classes but different attributes in each case

Asked by Varsha on 9 Oct 2011

Latest activity Commented on by Mark Golberg on 13 Apr 2022

Accepted Answer by Ilya

AI and Statistics Deep Learning Toolbox Image Data Workflows

5

answers

0 votes
18 views

PCA output: coefficients vs loadings

Asked by Mathew Guilfoyle on 11 Feb 2013

Latest activity Edited by Seung Yi Lee on 30 Aug 2021

AI and Statistics Statistics and Machine Learning Toolbox Dimensionality Reduction and Feature Extraction

3

answers

0 votes
2 views

error using svmtrain (not enough inputs)

Asked by kash on 5 Apr 2012

Latest activity Commented on by Walter Roberson on 12 Aug 2021

MATLAB

1

answer

1 vote
4 views

How to use svmtrain() with a custom kernel in Matlab?

Asked by Tom on 22 Dec 2012

Latest activity Commented on by jyoti lele on 22 Jul 2021

AI and Statistics Statistics and Machine Learning Toolbox

3

answers

0 votes
1 view

how show the clusters graphically?

Asked by huda nawaf on 12 Aug 2012

Latest activity Commented on by avadh kushwaha on 6 May 2021

MATLAB Graphics Graphics Performance

2

answers

0 votes
4 views

ROC analysis and perfcurve

Asked by Costanzo on 5 May 2015

Latest activity Answered by Muge Karaman on 24 Feb 2021

Industries Biotech and Pharmaceutical ROC - AUC

2

answers

0 votes
11 views

Differences between svmtrain and fitcsvm

Asked by Diver on 9 Jul 2015

Latest activity Answered by Victor Vergara on 13 Oct 2020

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Naive Bayes

1

answer

1 vote
0 views

Score calculation in ClassificationSVM using linear kernel function

Asked by Yancey Li on 20 Jul 2015

Latest activity Commented on by liang shuaibing on 23 Jul 2020

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Discriminant Analysis

3

answers

0 votes
2 views

How to make matrix a possitive definite

Asked by Micha? Kowalczyk on 24 Aug 2011

Latest activity Answered by Fadi Alsuhimat on 6 Jul 2020

Accepted Answer by Arturo Moncada-Torres

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

0 votes
2 views

ROC curve with Matlab using svmtrain

Asked by Mohamad on 20 Nov 2014

Latest activity Commented on by Thi Huong Hoa Trinh on 7 May 2020

Accepted Answer by Ilya

Radar Phased Array System Toolbox Detection, Range and Doppler Estimation Detection

2

answers

0 votes
2 views

hand gesture data classification and recognize gesture from image

Asked by nguyen on 29 Nov 2012

Latest activity Answered by Kenta on 29 Mar 2020

Accepted Answer by Kenta

Signal Processing Signal Processing Toolbox Measurements and Feature Extraction Descriptive Statistics

1

answer

0 votes
2 views

How to access training data in regression trees in TreeBagger

Asked by Santiago Gonzalez on 11 Aug 2015

Latest activity Commented on by Ruiyang Jin on 5 Aug 2019

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

0 votes
3 views

how can we know the most imortant predictor in Discriminant analysis

Asked by Abdulkareem on 26 Feb 2014

Latest activity Commented on by Sand on 18 Jul 2019

AI and Statistics Statistics and Machine Learning Toolbox Classification Discriminant Analysis

1

answer

0 votes
1 view

fitcsvm with identical variables gives different result on different machines

Asked by fireattack on 18 Sep 2016

Latest activity Commented on by kc on 19 Jun 2019

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

4

answers

0 votes
12 views

c4.5

Asked by FIR on 17 Apr 2012

Latest activity Edited by UMA RAMASAMY on 21 May 2019

MATLAB Data Import and Analysis Data Import and Export Web Access and Streaming Web Services

1

answer

0 votes
2 views

What formula is used to calculate perplexity in fitlda?

Asked by Stephen Bruestle on 22 Jan 2019

Latest activity Answered by Ilya on 13 Mar 2019

Accepted Answer by Ilya

MATLAB Data Import and Analysis Encryption / Cryptography

2

answers

0 votes
5 views

How to find probability of classification in boosted tree (AdaboostM2)

Asked by Sal on 30 Dec 2015

Latest activity Answered by Ruben Fernandez on 31 Jan 2019

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

2

answers

0 votes
1 view

Matlab: Error using classreg.learning.FitTemplate/fit with hyperparameter optimization of SVM

Asked by Nick Zadeh on 25 Oct 2018

Latest activity Commented on by Nick Zadeh on 26 Oct 2018

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Regression Gaussian Process Regression

2

answers

1 vote
1 view

Is it possible to set specific OOBIndices in TreeBagger

Asked by Walid on 24 Dec 2014

Latest activity Answered by Yiwen Mei on 22 Sep 2018

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

0 votes
2 views

How are the automatic values of hyper-parameters in Matlab Regression Learner determined?

Asked by Georgios Etsias on 26 Jul 2018

Latest activity Answered by Ilya on 6 Aug 2018

AI and Statistics Statistics and Machine Learning Toolbox Regression Support Vector Machine Regression

2

answers

0 votes
3 views

visualize a tree and splitting point in TreeBagger

Asked by Henry on 11 Oct 2013

Latest activity Answered by Mohammad Abdulla on 5 Jul 2018

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

0 votes
1 view

TreeBagger: How do I view entire tree or the list of logical steps? (Not same as with fitctree)

Asked by Justin on 3 Oct 2014

Latest activity Commented on by hartanto on 15 Jun 2018

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

2 votes
2 views

Create an 'other' category for classregtree?

Asked by Jessica on 3 Apr 2013

AI and Statistics Statistics and Machine Learning Toolbox Classification

2

answers

0 votes
3 views

Perform Naive-Bayes classification(fitcnb) with non-zero off-diagonal covariance matrix

Asked by simplified on 18 Jan 2018

Latest activity Answered by Ilya on 19 Jan 2018

Accepted Answer by the cyclist

AI and Statistics Statistics and Machine Learning Toolbox Classification Naive Bayes

2

answers

0 votes
4 views

Cross validation in matlab

Asked by Lester Lim on 30 Jan 2013

Latest activity Edited by Greg Heath on 1 Jan 2018

Accepted Answer by Greg Heath

AI and Statistics Statistics and Machine Learning Toolbox Classification Discriminant Analysis

2

answers

0 votes
4 views

Finding best parameters of SVM

Asked by Jack on 5 Apr 2014

Latest activity Answered by chit paing on 29 Dec 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox

2

answers

0 votes
5 views

How to get the mean of ROC curves using Matlab?

Asked by Ali Algomae on 1 Sep 2016

Latest activity Edited by Walter Roberson on 28 Dec 2017

Radar Phased Array System Toolbox Detection, Range and Doppler Estimation Detection

2

answers

0 votes
9 views

Lack of fit with fitrlinear on multivariate data (version 2016a and later)

Asked by Jeffrey Hawkes on 19 Dec 2017

Latest activity Commented on by Jeffrey Hawkes on 22 Dec 2017

AI and Statistics Statistics and Machine Learning Toolbox Regression Support Vector Machine Regression

2

answers

0 votes
5 views

setting OOBPredictorImportance to 'on' or true generates error

Asked by Jon Whitney on 2 Feb 2016

Latest activity Commented on by Michael Garaszczuk on 18 Nov 2017

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

0 votes
4 views

Does the function ClassificationTree.fit automatically prune?

Asked by Niklas Axelsson on 30 Jun 2012

Latest activity Commented on by eli seri on 15 Nov 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

3

answers

0 votes
17 views

To calculate mahalanobis distance when the number of observations are less than the dimension

Asked by Pradeep Krishnamurthy on 31 Mar 2017

Latest activity Answered by Ilya on 30 Aug 2017

Accepted Answer by John D'Errico

Sciences Neuroscience Mesoscale and Multiscale

3

answers

0 votes
10 views

How do I get the "depth" of a tree?

Asked by Staffan Sevon on 7 May 2015

Latest activity Commented on by Igor on 12 Jul 2017

Accepted Answer by Ilya

AI and Statistics Deep Learning Toolbox Train Deep Neural Networks Function Approximation, Clustering, and Control Function Approximation and Clustering Pattern Recognition

1

answer

0 votes
3 views

TreeBagger - Random forest

Asked by Magnus Barkved Olsen on 10 Jul 2017

Latest activity Answered by Ilya on 11 Jul 2017

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

2

answers

0 votes
2 views

kmeans appear to miss obvious clusters

Asked by NCramer on 7 Jul 2017

Latest activity Commented on by NCramer on 10 Jul 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Cluster Analysis and Anomaly Detection k-Means and k-Medoids Clustering

1

answer

1 vote
4 views

Help assess my Random Forest work and work on feature selection

Asked by Anthony on 6 Jul 2017

Latest activity Commented on by Ilya on 9 Jul 2017

AI and Statistics Deep Learning Toolbox Train Deep Neural Networks Function Approximation, Clustering, and Control Function Approximation and Clustering Pattern Recognition

1

answer

0 votes
7 views

Understanding the equations behind the 'logistic' learner when using fitclinear

Asked by Brian Odegaard on 9 Jun 2017

Latest activity Commented on by Ilya on 12 Jun 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Trees

2

answers

0 votes
11 views

Nonlinear regression with categorical predictor?

Asked by wesleynotwise on 24 May 2017

Latest activity Commented on by wesleynotwise on 25 May 2017

Accepted Answer by Michelangelo Ricciulli

AI and Statistics Statistics and Machine Learning Toolbox Regression

1

answer

0 votes
2 views

What does it mean for a tree in a TreeBagger ensemble to have to have >80% error? What is the best way to reduce error?

Asked by Austin Jordan on 22 Apr 2017

Latest activity Edited by Ilya on 23 Apr 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

1

answer

0 votes
4 views

помогите с загрузкой Matlab

Asked by Aleksey Tkachev on 15 Apr 2017

Latest activity Answered by Ilya on 15 Apr 2017

MATLAB Environment and Settings Startup and Shutdown

2

answers

0 votes
3 views

How to use svm in Matlab for my binary feature vector.

Asked by ai ping Ng on 5 Apr 2017

Latest activity Commented on by Ilya on 15 Apr 2017

MATLAB Language Fundamentals Matrices and Arrays Matrix Indexing

2

answers

0 votes
8 views

Why is SVM performance with small random datasets so high?

Asked by Alessandro La Chioma on 31 Jan 2017

Latest activity Answered by Ilya on 27 Feb 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Get Started with Statistics and Machine Learning Toolbox

1

answer

0 votes
2 views

Classifier cross validation on grouped observations with different class ratio's

Asked by Niels Schurink on 13 Feb 2017

Latest activity Answered by Ilya on 14 Feb 2017

Image Processing and Computer Vision Image Processing Toolbox Hyperspectral Image Processing

2

answers

0 votes
6 views

How do I find slack variables in SVM?/ Distance to the boundary?

Asked by Mech Princess on 8 Feb 2013

Latest activity Commented on by Aliza Rubenstein on 19 Jan 2017

MATLAB

1

answer

0 votes
3 views

Classification / Regression Trees for multiple responses?

Asked by Uwe Ehret on 17 Jul 2015

Latest activity Commented on by Andrea Le on 19 Jan 2017

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Trees

2

answers

0 votes
4 views

Algorithms for imbalanced multi class classification in Matlab?

Asked by Carlos Paradis on 13 Oct 2012

Latest activity Commented on by med djo on 11 Jan 2017

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Ensembles

4

answers

0 votes
1 view

Feature selection to perform classification using Multinomial Logistic Regression

Asked by Veronica Marques on 6 Dec 2016

Latest activity Commented on by Ilya on 23 Dec 2016

Accepted Answer by Ilya

AI and Statistics Statistics and Machine Learning Toolbox Classification Classification Trees

1

answer

0 votes
0 views

How to solve the “out of memory” problem in Logistic Regression achieved by “glmfit”

Asked by Wendong Ge on 2 Nov 2016

Latest activity Answered by Ilya on 2 Nov 2016

AI and Statistics Statistics and Machine Learning Toolbox

1

answer

0 votes
1 view

Haar feature based cascade classifiers and duplex flexible window

Asked by Muhammad Hamid on 8 Dec 2011

Latest activity Commented on by Meera on 31 Oct 2016

Image Processing and Computer Vision Computer Vision Toolbox Recognition, Object Detection, and Semantic Segmentation Object Detection Using Features Face Detection

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