MByk

Last seen: 17 dagar ago | Active since 2017

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Question

Clustering using Gower's Distance
Hello all, I have a dataset that includes both categorical and numerical features, and I'm looking to perform clustering on it. ...

ungefär en månad ago | 1 answer | 0

1

answer

Question

Shapley based feature selection
Hello everyone, I am trying to perform Shapley based feature selection. I wrote the code below but I did not use the Ytest varia...

6 månader ago | 2 answers | 0

2

answers

Question

Data normalization using robust scaling
Hello all, I am trying to implement "Robust Scaling" but I am confused. Should I use "all" argument for "median" and "iqr" funct...

ungefär ett år ago | 1 answer | 0

1

answer

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...

mer än ett år ago | 1 answer | 0

1

answer

Question

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...

mer än ett år ago | 2 answers | 0

2

answers

Question

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...

mer än 2 år ago | 1 answer | 0

1

answer

Question

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...

mer än 2 år ago | 2 answers | 0

2

answers

Question

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...

nästan 3 år ago | 2 answers | 0

2

answers

Question

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 ...

nästan 4 år ago | 1 answer | 1

1

answer

Question

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...

nästan 4 år ago | 1 answer | 0

1

answer

Question

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...

ungefär 4 år ago | 2 answers | 0

2

answers

Question

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...

nästan 5 år ago | 1 answer | 0

1

answer

Question

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 "...

nästan 5 år ago | 1 answer | 0

1

answer

Question

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...

ungefär 5 år ago | 2 answers | 0

2

answers

Question

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" ...

ungefär 5 år ago | 1 answer | 0

1

answer

Question

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...

ungefär 5 år ago | 1 answer | 0

1

answer

Question

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....

mer än 6 år ago | 1 answer | 0

1

answer

Question

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...

mer än 6 år ago | 1 answer | 0

1

answer

Question

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 ...

mer än 6 år ago | 1 answer | 0

1

answer

Question

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...

mer än 6 år ago | 2 answers | 0

2

answers

Question

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...

mer än 6 år ago | 1 answer | 0

1

answer

Question

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...

nästan 7 år ago | 1 answer | 0

1

answer

Question

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 ...

ungefär 7 år ago | 1 answer | 1

1

answer

Question

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...

ungefär 7 år ago | 1 answer | 0

1

answer

Question

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 ...

ungefär 7 år ago | 1 answer | 0

1

answer

Question

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...

mer än 7 år ago | 2 answers | 0

2

answers

Question

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...

mer än 7 år ago | 1 answer | 1

1

answer

Question

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...

mer än 7 år ago | 1 answer | 0

1

answer

Question

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...

nästan 8 år ago | 1 answer | 0

1

answer

Question

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...

nästan 8 år ago | 2 answers | 0

2

answers