# MByk

Followers: 0 Following: 0

**Statistics**

**MATLAB Answers**

**30** Questions

**0** Answers

RANK**13,248**

of 291,114

REPUTATION**3**

CONTRIBUTIONS

**30** Questions

**0** Answers

ANSWER ACCEPTANCE **
100.0%
**

VOTES RECEIVED**3**

RANK

of 19,758

REPUTATION**N/A**

AVERAGE RATING**0.00**

CONTRIBUTIONS**0** Files

DOWNLOADS **0**

ALL TIME DOWNLOADS**0**

RANK

of 145,761

CONTRIBUTIONS

**0** Problems

**0** Solutions

SCORE**0**

NUMBER OF BADGES**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Feeds**

Question

How can I determine number of samples?

Hello all, my question may not be directly related to Matlab, but I'm trying to draw samples without replacement from my dataset...

1 month ago | 1 answer | 0

### 1

answerQuestion

How can I convert indices into a binary matrix?

Hello all, I have a txt file that includes list of selected items (there are 10 items in total). I am reading the file using "re...

3 months ago | 2 answers | 0

### 2

answersQuestion

How to find selection frequency in a txt file?

Hello all, I have 10 txt files (I share an example) and each file has a list of selected items. I have 13 items in total. What I...

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I color an image?

Hello, I'm trying to segment an image using the DBScan algorithm, but the result is black and white. How can I convert the resul...

1 year ago | 2 answers | 0

### 2

answersQuestion

I can't use installed toolbox functions

Hello all, I have "Financial Toolbox" but I can't use "autobinning" function. I am getting "Unrecognized function or variable 'a...

1 year ago | 2 answers | 0

### 2

answersQuestion

How can I load .mat files?

Hello, I have 3 .mat files and I want to measure feature importance. Following code works fine with .txt files but I am getting ...

2 years ago | 1 answer | 1

### 1

answerQuestion

Datasets containing numerical and categorical data

Hello all, I have a dataset containing both numerical and categorical data. I want to use classification algorithms. Should I ch...

2 years ago | 1 answer | 0

### 1

answerQuestion

How can I change bar graph x-axis?

Hello, I want to order my bar graph (left hand side) in descending order but didn't succeed in ordering x-axis labels (right han...

3 years ago | 2 answers | 0

### 2

answersQuestion

How can I group data in order to build a table?

Hello, I want to group values according to the first column which repeats itself in every 5 records and displays the values side...

3 years ago | 1 answer | 0

### 1

answerQuestion

How to save "optimoptions" to a file?

Is there a way to save "optimoptions" to a txt file? I tried the code below but it is not working. I also tried "dlmwrite" and "...

3 years ago | 1 answer | 0

### 1

answerQuestion

Particle swarm optimization solving an equation system

I want to use particle swarm optimization to solve 4 complex valued nonlinear equations just to compare the results I got from o...

4 years ago | 2 answers | 0

### 2

answersQuestion

Solving nonlinear equations using fmincon

Hello, I have 4 nonlinear equations with 4 unknows (x(1), x(2), x(3), x(4)). I can get solutions using "lsqnonlin" and "fsolve" ...

4 years ago | 1 answer | 0

### 1

answerQuestion

Evaluation of Clustering Algorithms

I am trying to learn basics of clustering and clustering algorithms. Sorry if it is a dumb question. Is there a way to use K-Med...

4 years ago | 1 answer | 0

### 1

answerQuestion

Plotting Matrix with Small and Large Values

I am trying to plot the matrix (machines (rows) vs. production times (in sec) (columns)) below. C1=[0.6018 0.6238 0.6001 0....

5 years ago | 1 answer | 0

### 1

answerQuestion

Different Bayes Optimization Results

Sorry if it is a dumb question but is it normal to get different values despite using the same seed value? Or Am I making a mist...

5 years ago | 1 answer | 0

### 1

answerQuestion

Accumulating Unique Set Values

I have 10 sets (each set includes 1s and 0s: 1 means element selected) and trying to find the unique sets and store its element ...

5 years ago | 1 answer | 0

### 1

answerQuestion

Converting Cell Array into Array

I have 4 matrices with fixed columns but different rows (4 * n-by-3) created inside a for loop. I am storing them in a cell arra...

5 years ago | 2 answers | 0

### 2

answersQuestion

Converting Logical Indices into Real Values

I am trying to seperate observations of each class (I have 2 classes) but somethings wrong with the answers. I dont have a class...

5 years ago | 1 answer | 0

### 1

answerQuestion

Adding Legend to Perfcurve

I am plotting "perfcurve" but class 2 is shown as a green circle in the legend. How can fix it? Thanks for the help. <</matla...

5 years ago | 1 answer | 0

### 1

answerQuestion

Saving Classification Learner Results

Is there a way to save (export) the classification learner results (history and current model window values) in txt (or word or ...

6 years ago | 1 answer | 1

### 1

answerQuestion

Grouping Figures with Subplots

I have 3 figures which has 5 subplots and a uitable. I want to group them together. I use the following code but in the first ru...

6 years ago | 1 answer | 0

### 1

answerQuestion

Bayesian Optimization <undefined> and NaN Results

Sorry, if it's a silly question. I am using Bayesian Optimization to optimize classifier hyperparameters but sometimes I having ...

6 years ago | 1 answer | 0

### 1

answerQuestion

Adding an Extra Input Parameter to the Function

How can I add an extra input parameter to the function below? I want to add switch-case inside the function. [features,hist...

6 years ago | 2 answers | 0

### 2

answersQuestion

Bayesian Optimization Results Evaluation

I am trying to learn and understand Bayesian Optimization. My code is working like in the documentation page but what is the dif...

6 years ago | 1 answer | 0

### 1

answerQuestion

Parameter Optimization using Simulated Annealing

I am new to optimization and trying to understand the basics, so sorry if it is a dumb question. Is it possible to tune paramete...

6 years ago | 1 answer | 0

### 1

answerQuestion

Find the threshold point in a matrix

I have a 178x13 double matrix. In each column there is a point where each data value starts to stay same. I want to find them (r...

6 years ago | 1 answer | 0

### 1

answerQuestion

Diagonal Elements of the Square Matrix

I am calculating Sorensen-Dice coefficient (2|A and B|/|A|+|B|) but diagonal elements (intersection with itself) of the square m...

6 years ago | 2 answers | 0

### 2

answersQuestion

How Jackknife sampling works?

I am trying to understand sampling techniques but I am stuck on jacknife. Can somebody explain how jacknife sampling works? How ...

7 years ago | 1 answer | 1

### 1

answerQuestion

Intersection of matrix rows up to a given column

How can I find the number of intersecting elements of a matrix up to a user defined column? For example, intersection of first...

7 years ago | 1 answer | 0

### 1

answerQuestion

User defined distance function

I'am trying to calculate Canberra distance (formula of the Canberra distance sum(|a-b|/|a|+|b|)) by defining a custom distance f...

7 years ago | 1 answer | 0