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# Telema Harry

Last seen: 22 dagen ago Active since 2020

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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...

22 dagen ago | 2 answers | 0

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Question

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 ...

ongeveer 2 maanden ago | 1 answer | 0

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Question

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...

ongeveer 2 maanden ago | 0 answers | 0

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Question

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...

3 maanden ago | 0 answers | 0

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Question

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...

3 maanden ago | 1 answer | 0

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Question

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...

3 maanden ago | 0 answers | 0

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Question

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...

4 maanden ago | 2 answers | 0

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Question

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 ...

4 maanden ago | 0 answers | 0

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Question

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...

4 maanden ago | 1 answer | 0

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Question

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...

4 maanden ago | 1 answer | 0

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Question

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...

4 maanden ago | 1 answer | 0

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Question

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...

5 maanden ago | 2 answers | 0

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Question

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, ...

5 maanden ago | 0 answers | 0

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Question

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...

5 maanden ago | 0 answers | 0

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Question

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...

5 maanden ago | 1 answer | 0

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Question

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...

5 maanden ago | 2 answers | 0

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Question

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 ...

6 maanden ago | 1 answer | 0

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Question

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. ...

7 maanden ago | 1 answer | 0

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Question

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 ...

7 maanden ago | 1 answer | 0

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Question

Adding feasible region on a Contour plot
Hi, I am trying to plot a contour of an optimization problem and also determine the feasible region for the function. I have b...

8 maanden ago | 1 answer | 0

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Question

Calling a function without an Output argument
Hi Programmers, I have a function that plots the phase and magnitude of my signal. I want this function to plot only the magni...

8 maanden ago | 2 answers | 0

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Question

Re-arranging row of a matrix in array.
IHello Programmers, I am trying to perform the following tasks. I have a function that returns two vector as output and one o...

8 maanden ago | 2 answers | 0

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Question

For loop execution.
I am trying to compute the code shown below. but keep getting error. I will be happy if someone could please look at the code ...

8 maanden ago | 1 answer | 0

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Question

Display strings and variable - cell array
I want to disply the output of my variable. so i created the following code. food= { 'Rice','Quinoa','Tortilla','Lentils','Bro...

9 maanden ago | 1 answer | 0

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Question

How to create code for toeplitz matrix
I have Y = [1,2,3,4] and I want to create YY = [1 2 3 4 2 1 2 3 3 2 1 ...

9 maanden ago | 1 answer | 0

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Question

Array computation in Matlab
Please i need help in writing this code. My other option is to write the code manually. But I figured that would not be efficien...

10 maanden ago | 1 answer | 0

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How to solve a systems of ODE and Algebraic Equations
Thank you James for the feedback. See the sample equations. f = 10; A = 0.2; w = 2*pi*f; wh = 0.8; wl = 0.2; y = 25 - (...

10 maanden ago | 0

Question

How to solve a systems of ODE and Algebraic Equations
I have a system of 3 nonlinear ODE and 2 nonlinear algebraic equations. Please how can I solve these systems of equation. ODE ...

10 maanden ago | 2 answers | 0

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Question

Using Help using filter function in Matlab
clear all G = @(u,t)(25-(5-(u)).^2); u = 0; %g0 = G(0.1,0); phase = 0; % Extremum Seeking Control Parameters freq ...

ongeveer een jaar ago | 1 answer | 0