MByk
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Awarded to MByk on 08 Oct 2020
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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...
6 mois il y a | 1 réponse | 0
1
réponseQuestion
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...
7 mois il y a | 1 réponse | 0
1
réponseQuestion
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...
9 mois il y a | 2 réponses | 0
2
réponsesQuestion
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...
plus d'un an il y a | 1 réponse | 0
1
réponseQuestion
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...
plus d'un an il y a | 2 réponses | 0
2
réponsesQuestion
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...
environ 2 ans il y a | 2 réponses | 0
2
réponsesQuestion
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 ...
environ 3 ans il y a | 1 réponse | 1
1
réponseQuestion
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...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
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...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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 "...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
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" ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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....
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
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 ...
presque 6 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
presque 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
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...
presque 6 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
environ 6 ans il y a | 1 réponse | 0
1
réponseQuestion
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 ...
plus de 6 ans il y a | 1 réponse | 1
1
réponseQuestion
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...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
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 ...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
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...
plus de 6 ans il y a | 1 réponse | 1
1
réponseQuestion
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...
presque 7 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
environ 7 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
environ 7 ans il y a | 2 réponses | 0
2
réponsesQuestion
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 ...
plus de 7 ans il y a | 1 réponse | 1
1
réponseQuestion
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...
plus de 7 ans il y a | 1 réponse | 0
1
réponse
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