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**Content Feed**

Question

How to stop the display of objective function model calculation and the graphs when using GP

I am computing a GP at every iteration using a for-loop. The objective function graphs and calculations in the command wind is t...

5 months ago | 1 answer | 1

### 1

answerQuestion

How to use Kernel Ridge Regression Function in Matlab - fitrkernel

I am trying to perform regression using kernel ridge regression in Matlab. Is there a dedicated function for Kernel Ridge Regres...

6 months ago | 1 answer | 0

### 1

answerQuestion

3D interpolation using Griddata

I have a 3D gridded data. The 3D grid is partitioned as: a = [0.25, 0.5, 0.75]; b = [0.25, 0.5, 0.75]; c = [1,2,3]; [A,B,C...

10 months ago | 1 answer | 0

### 1

answerQuestion

Getting Error while using Transparency to object (alpha)

I get the following error ("Unable to use a value of type matlab.graphics.chart.primitive. Surface as an index. alpha(s,.2)") ...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to plot a cylinder from a specified axis

I am trying to plot a cylinder, but the cylinder is starting from the default (0,0,0) axis. Assuming the default axis is axis(...

1 year ago | 1 answer | 1

### 1

answerQuestion

3D plot of output variables

I will like to plot my output variables in a 3-D graph. I have not quite figure out how to do it. Please find attached the matl...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to solve ODE on array variables

Ideas and suggestion needed. I am trying to compute ODE of several array variables. I can split the equations into single equa...

1 year ago | 1 answer | 1

### 1

answerQuestion

Implementation of Integral Cost function in Matlab

Please, I need ideas how to simulate the model in the attached document. writing code for equation 39 - 41 is trivial, however, ...

1 year ago | 1 answer | 0

### 1

answerQuestion

Combine two controllers in ODE45 environment

Hi, Please I need idea on how to implement the following problem on MATLAB. My aim is to stabilize a plant using two dynamic c...

2 years ago | 1 answer | 0

### 1

answerQuestion

Display variable outside ODE45 function

Hi, Please what is the best way to display variable inside ODE solver function. In the attached sample code, I will like to v...

2 years ago | 2 answers | 0

### 2

answersQuestion

Insert Mathlab figure in Latex

Hi, I have been unable to insert Matlab figure in my LaTex document and I am not sure what the problem is. I usually use the...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to trim down data in an array

Hi, I have a column vector containing 1000 element. I really need to reduce the size of the vector to 100 to be able to use i...

2 years ago | 2 answers | 0

### 2

answersQuestion

Find the index of a value closest to a constant value in 3D array when the index of row and column are given

I have a 3D array B(i,j,k). and I want to locate the index (k) in the array closest to the a number Val = 6. i = 1, j = 4. and ...

2 years ago | 1 answer | 0

### 1

answerQuestion

working with 3-D Numpy array from PYTHON in MATLAB

I opened GRIB2 files as a 3-D Numpy array in python and I want to save the data in a .mat file so I can can use the data in my...

2 years ago | 0 answers | 0

### 0

answersQuestion

plot atitude, longitude and altitude on google earth

I have a data of multiple latitude, longitude and altitude showing the path of a balloon Is there a toolbox or a function in MA...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to make animation of 2D plot

Hi, I am trying to plot a 2D animation but my code is not giving the expected result. I have attached my test data. I will app...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to store and retrieve variables during ode45 or ode23 call.

Please I need suggesstion on how to solve this problem. My model is a set of coupled nonlinear and linear ODE and I am running...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to plot on two y- axis

I am struggling to plot my data on Two y-Axis. Can you someone please help me out. U wind velocity component for each location...

2 years ago | 2 answers | 0

### 2

answersQuestion

How to resolve an error message: Unrecognized function or variable

I always get an error of Unrecognized function 'DA' when I run the code for the first time. The error disappears in subsequent ...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to detect negative number in Switch and case statement

I want to implement some control actions based on the sign of the error and Uz. when error = -1, Uz = -1. The output is 'oth...

2 years ago | 1 answer | 0

### 1

answerQuestion

What is the best way to open GRIB files in Matlab R2021a

Hello, I need to use weather data from NOAA in my simulations. I am currently using the NetCDF data and they are very large (>6...

2 years ago | 2 answers | 0

### 2

answersQuestion

Error occurring while solving odes using ode15s

Hello, I am trying to solve a systems of nonlinear ODE using ODE15s but I keep getting an error after about 29 seconds and I c...

2 years ago | 1 answer | 0

### 1

answerQuestion

Display output of ODE45 after error

Hello Programmers, I have a model that predicts the altitude (Z) of a UAV. The model is a sets of ODE and I solved it using O...

3 years ago | 2 answers | 0

### 2

answersQuestion

How to handle big data while using ODE45

Hello Programmers, I have a challenge that I will like to solve. I am using weather data for my simulation. The challenge is, ...

3 years ago | 0 answers | 0

### 0

answersQuestion

How to remove labels on google earth map

I have spent several hours trying to figure out how to remove the point label in my google earth map. But I have not been succes...

3 years ago | 0 answers | 0

### 0

answersQuestion

How to plot longitude, latitude and time on a map

Hi, I have a longitude and latitude dataset generated from a dynamic model. Longitude = linspace(20.01,60, 50) Latitude = li...

3 years ago | 1 answer | 0

### 1

answerQuestion

How to temporarily pause execution of a function for troubleshooting

Hello Programmers, I have sets of ODE equation that I am solving using ODE45. For some unknown reasons, the model gives unreal...

3 years ago | 2 answers | 0

### 2

answersQuestion

Labelling of x axis

Hello Programmers, I have an hourly data and I used a step size of 0.1 in my simulation. I used 12 hours worth of data in my ...

3 years ago | 1 answer | 0

### 1

answerQuestion

How can I compute the CDF between - infinity to TH

Please how can I compute the CDF of the shaded portion in matlab. TH = 5. The two PDF was generated from the code below. ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Plot multiple probability distribution function side by side

Hello, Please how can I plot the pdf shown in the attached picture. I can easily plot one pdf but I don't know how to combine ...

3 years ago | 1 answer | 0