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Yaser Khojah


57 total contributions since 2018

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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...

1 day ago | 0 answers | 0

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answers

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...

9 days 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 ...

12 days ago | 0 answers | 0

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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...

13 days ago | 0 answers | 0

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answers

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...

16 days ago | 0 answers | 0

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answers

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...

19 days 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...

23 days 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...

26 days 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...

27 days 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 ...

29 days 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....

30 days 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...

1 month 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...

1 month 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...

1 month ago | 0 answers | 0

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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...

1 month 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...

2 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...

2 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 ...

2 months ago | 0 answers | 0

0

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 = ...

2 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...

2 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...

3 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...

3 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...

3 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...

3 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...

4 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...

4 months ago | 1 answer | 0

1

answer

Question


Create a Random log normal distribution from given mean and variance of a normal distribution
I have normal distributions with their means and stand deviations and I’m trying to great their lognormal distributions. Althoug...

4 months ago | 1 answer | 0

1

answer

Question


How to add fixed Colorbar based on a vector for 2D scatter plot with 3 vectors
I want to compare two [2D scatter] plots that both have three variables (x,y,z). I'm plotting x against y and showing vector z ...

7 months ago | 1 answer | 0

1

answer

Question


Splitting a matrix into group based into the first column and select the maximum value from the second column for each interval
I have a big matrix,x, with size of 21,6000 x 2. The first Column is A and The second one is B. I'm looking for away to split th...

7 months ago | 2 answers | 0

2

answers

Question


Matching the maximum Values in a matrix from another vector
I have a matrix with size of 21600 x 2 as Matrix_Vector = [STD_v,NPV_v]; I'm trying to find the values that matching xvalues = [...

7 months ago | 1 answer | 0

1

answer

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