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Abdolkarim Mohammadi-Balani


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184 total contributions since 2019

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Answered
Fit a power model to the set of data
Type cftool in the command window to open Curve Fitting toolbox. Then you can import your data and fit the power function.

2 días ago | 0

Answered
Eject entity from server when failure occurs
Generally speaking, failures are preempted entities that does not consume resources. They are generated from another entity gene...

9 días ago | 0

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Answered
How to concatenate string cell arrays?
What you need is the Cartesian product of the two sets. MATLAB does not have built-in function, but there are several functions ...

11 días ago | 0

Answered
Is there a way to call Continue in a loop less script ?
Instead of calling continue directly, you can set a flag in the inner script. The outer script, which contains the loop, uses th...

27 días ago | 0

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Answered
Enlarging y-Axis because text description of two points is overlapping
A simple solution is to add horizontal and vertical offset so that you can better control the position of the labels. x = [6...

alrededor de 1 mes ago | 0

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Answered
Infinite Loop with conditional statement if
The for loop can be broken using break statement. for if break end end https://www.mathworks.com/help/mat...

alrededor de 1 mes ago | 0

Answered
Z must be a matrix, not scalar or vector - surface plot
You use surf when you have z value for each combination of x and y vectors. Here, you have x, y, and z vectors, so you should dr...

alrededor de 1 mes ago | 0

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Answered
Hi everyone, How do I call functions in simevents for selected queues to halt entities blocking them from departing whenever entities with specific attributes are injected into the system (by a deliberate event).
I think you must implement this complex system with MATLAB Discrete-Event System (MDES) only, since you need to iterate over que...

alrededor de 2 meses ago | 0

Answered
How do you model transfer batching in simevents if you use orders as entities and order quantity as an attribute?
You should use an Entity replicator block, which replicates entities based on the order size. Replicas are production batches af...

alrededor de 2 meses ago | 0

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Answered
How can I bring 5 variable at 5 different axis angles and plot the correlation coefficient with respect to a base variable.
MATLAB does not have built-in spider plot, AFAIK. The nearest built-in is polarhistogram(). https://www.mathworks.com/help/matl...

alrededor de 2 meses ago | 0

Answered
Plot of 4 variables with dates(years)
You should read the documentation of plot(): https://www.mathworks.com/help/matlab/ref/plot.html All you need is to define c...

alrededor de 2 meses ago | 0

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Question


Loading timeseries data into the deep network designer
I have read and learnt how to train a deep network for forecasting future values of a timeseries here: https://www.mathworks.c...

alrededor de 2 meses ago | 0 answers | 0

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answers

Answered
Using for loop to extract data from a matrix
The break statement terminates the for loop: if j > numel(cavity) break end

2 meses ago | 0

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Answered
PSO algorithm pv system code
You should formulate your problem based on the scientific literature. MATLAB has built-in PSO, but it only handles unconstrained...

2 meses ago | 0

Answered
Calculate trends with regression for columns in MATLAB
You can use parfor (parallel for loop) instead of for. The more CPU cores you have, the more speed you gain. https://www.mathw...

2 meses ago | 0

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Answered
Creating a function with varying numbers of input parameters
You should use Variable-length input argument list using varargin(). https://www.mathworks.com/help/matlab/ref/varargin.html

2 meses ago | 1

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Answered
Why SimEvents spends so much time
You should run 1000 simulations using sim() in conjunction with SimulationInput objects. With SimulationInput you can define the...

2 meses ago | 0

Answered
link a custom creation function
1) "If you have a partial initial population, meaning fewer than PopulationSize rows, then the genetic algorithm calls CreationF...

2 meses ago | 0

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Answered
What information is conveyed by the different colors in Matlab's contourf( ) data plots?
You can turn on the ShowText property of the contour, or add the color bar: x = linspace (-5, 5, 51); y = linspace (-5, 5, 51...

2 meses ago | 0

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Answered
MATLAB function block error in Simulink
Unlike m-file functions, MATLAB function block does not apply automatic array expansion. The simplest way to overcome is to defi...

2 meses ago | 0

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Answered
Run a Simulink modell stepwise inside Matlab
You can use MATLAB function block. It is executed on every timestep just like other blocks, and you can return outputs for every...

2 meses ago | 0

Answered
Create 9x9 matrix with RANDI between [0,2] with each 0,1, and 2 repeating three times each per column.
You can first create a vector with the values you need: Reference = repelem (0:2,3)'; Then you initialize the 9x9 matrix with...

2 meses ago | 1

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Answered
How can I display the last value obtained in a scope block graph in Simulink?
The Display block shows the numeric output. https://www.mathworks.com/help/simulink/slref/display.html

2 meses ago | 1

| accepted

Answered
Can I use my own timetraces in M/M/1 queue implementation by Simevents?
I think you need a simple M/M/c queue. The example you are trying has components for other purposes, which might have confused y...

2 meses ago | 0

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Answered
What am I doing wrong?
For drawing multiple line plots at once, you should have one column vector for each line. You just need to have x as a column ve...

2 meses ago | 2

Answered
How to use the Parallel Computing Toolbox of MATLAB to optimize the parameters of a Simulink model with genetic algorithm?
You should set ga() to pass all of the generation members at once using UseVectorized option. Then you set the objective functio...

3 meses ago | 0

Answered
How to solve this problem? Error using == Quadratic constraints not supported
QP = Quadradic Programming = Quadradic objective function and linear constraints. QCQP = Quadratically Constrained Quadratic P...

3 meses ago | 2

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Answered
Small Value bars are missing in bar graph.
You can add a constant to the bars with small values. For example: X (X<4) = X (X<4) + 0.2;

3 meses ago | 0

Question


parsim() with fast restart returns different results
I am running multiple simulations using parsim() with fast restart to accelerate execution. However, I have noticed that using p...

3 meses ago | 1 answer | 0

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answer

Answered
How do you use the NaN function?
You first create the NaN vector using nan(), then fill in the elements. V = nan (500,1); V (124:end) = Data;

3 meses ago | 0

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