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Yaser Khojah


61 total contributions since 2018

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Question


Returning an additional value that is not part of the fitness function or objective for all population evaluation in GA
Can anyone please help by showing the code how can I return an additional value (Sigma) that is not part of my fitness function ...

1 day ago | 1 answer | 1

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answer

Question


Collecting a value (Sigma ) over all of the objective function evaluations while using GA optimizer
I want to collect all the values of (Sigma ) over all of the objective function evaluations. I'm not really sure how to do this ...

2 months ago | 0 answers | 0

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Question


How to return an additional parameter that is not part of the population nor the objective in ga MATLAB?
I'm looking for a way to retun an additional variable (risk) with my objective (ecnomic_value) paramter for each population (wei...

3 months ago | 0 answers | 0

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Question


How to return an additional variable that is not part of the objective for each population while using GA optimizer?
I have a function that I'm optimizing by GA. In addition, I would like to show all the population (by using an output function)...

3 months ago | 1 answer | 0

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answer

Question


Number of Population and Generation in GA?
I have a function where I'm trying to optimize. So, Im using GA and I have run the optimizer on the defult case. Is there anyway...

3 months ago | 1 answer | 0

1

answer

Question


Scatter plot with a color variation based on a third vector
I have three variables (Return, Risk, Supply) where I would like to present them on a scatter plot as the attached. I would like...

3 months ago | 1 answer | 1

1

answer

Question


How to find the final formula or equation that is produced by regression learner.
I have created a trainedModel for my data by using Train Regression Models in Regression Learner App. After I exported my model ...

3 months ago | 0 answers | 0

0

answers

Question


gamultiobj optimizer is not working and I get the following error massage "Reference to non-existent field 'Best'"
I have a function that its single objective was optimized by using ga optimizer in MATLAB. Everything is working. Now, I would l...

3 months ago | 0 answers | 0

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Question


How to change the boxplot color manually
I have a boxplot figure that was saved in my folder but I'm not really sure where the data is. Is there away to change the color...

4 months ago | 0 answers | 0

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Question


Does PCA funciton normalize the data while it generates the biplot?
Dear all, I have 16 variables and I would like to use PCA to understand how they are correlated among each other’s. The first 8...

4 months ago | 0 answers | 0

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answers

Question


My gamultiobj is not working but it works for the ga?
I have a function that its single objective was optimized by using ga optimizer in MATLAB. Everything is working. Now, I would l...

4 months ago | 0 answers | 0

0

answers

Question


Find the max value and index of each interval in a big matrix
I'm looking for a way to split my data into group then find the maximum and index of each group. So, I have this code which give...

4 months ago | 1 answer | 0

1

answer

Question


How to find the index of splitapply
I have this code where I split the data into intervals and I look to find the maximum value for each interval as below. I need t...

4 months ago | 1 answer | 0

1

answer

Question


Find the highest value of y for each x value
Can anyone please help me with this quesiton. I have a big matrix where I’m only interested to plot the highest value of y for ...

4 months ago | 1 answer | 0

1

answer

Question


How to plot A Curve That Connects The Highest Values in Y-Axis
Can anyone please help me to create the curve as below. I'm looking for away to plot the highest point at y-axix for all x-axis....

4 months ago | 1 answer | 0

1

answer

Question


Find the maximum value in each group of a big matrix
I have a big matrix and I'm looking for an easy way to group them by a certain way then find the maximum in each group. I have c...

4 months ago | 1 answer | 0

1

answer

Question


Coloring The Dots in biPlot Chart
I have created biplot as below and I'm looking for a way to distinguish the dots by different colors according to their group na...

4 months ago | 1 answer | 0

1

answer

Question


How to related PCA output to the original data?
Hello, I'm new to PCA and I would like to learn the outcome of pca function. I have read the document and checked others works...

4 months ago | 0 answers | 0

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answers

Answered
How to apply PCA correctly?
Dear the cyclist, thanks for showing this example. I have a question regarding to the order of the COEFF since they are differen...

4 months ago | 1

Question


Ylim is not working
I have tried to inlcude a common and fixed Y-axis and X-axis for all the figures but it is working. Can you please help. figur...

5 months ago | 1 answer | 0

1

answer

Question


Indexing with conditions for certain columns
I have a huge matrix where I want to find the indexes that meet each column median only and the rest of the column median should...

5 months ago | 1 answer | 0

1

answer

Question


Grouping A Scatter Plot
I have a big matrix (17400X18) as attached where I created their scatters by plotting column (17) vs column (18) as in Figure 1 ...

5 months ago | 0 answers | 0

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answers

Question


Plotting 3D for three independent variables without any function
I have four vectors as attached in Data_1.tx. file. I'm looking for a way to plot their surface map. Where X = (:,column3), Y = ...

5 months ago | 1 answer | 0

1

answer

Question


A row vector that matches all similar rows in a matrix to group be them in a scatter plot
I have a huge matrix where I want to split them into smaller group based on certain criteria where all the rows are matching. Fo...

5 months ago | 1 answer | 0

1

answer

Question


How to use lognrnd?
I'm trying to create a random log-normal distributions for a vector . I have already read the lognrnd document as https://uk.mat...

6 months ago | 1 answer | 0

1

answer

Question


Saving plot with variables larger than 2 GB
I'm trying to save a huge boxplot figure but it is working. I used matfile and it is not saving yet. Any idea? for i = 1:length...

6 months ago | 2 answers | 0

2

answers

Answered
Plot a bar chart while sorting its variables and presenting the cosponsoring new sorted variables in the x-axis.
Cases = 1:19; [CV_Sorted,index] = sort(CV,'descend'); bar(CV(index)) xTick = Fields_Sorte; set(gca, 'xTick',Cases, 'xTickL...

6 months ago | 0

| accepted

Question


Plot a bar chart while sorting its variables and presenting the cosponsoring new sorted variables in the x-axis.
I have two vectors as below where i would like to plot them in a bar chart in a descending order while showing the corropsoing v...

6 months ago | 1 answer | 0

1

answer

Question


Creating a boxplot for every row in a matrix
I'm looking for an easy and fast way to make a boxplot for every row in a huge matrix (1000000 x 20) and showing all these boxes...

7 months ago | 1 answer | 0

1

answer

Question


Removing a row from a matrix based on certain conditions
I have three variables t_SS, t_A, and G and all of them have the size of 10000 X 8. I'm looking for away to remove the entire r...

7 months ago | 1 answer | 0

1

answer

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