Jake
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Awarded to Jake on 27 Mar 2021
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Feeds
Question
Heatmap doesn't show the values
The heatmap figures I used to plot on Matlab had the values labeled in each cell (just like the documenation says), but now the ...
3 months ago | 2 answers | 0
2
answersQuestion
How to compare data series?
Suppose, I'm performing five time-domain simulations with 5 different coefficient values (say beta = [0.2, 0.3, 0.4, 0.5, 0.6])....
8 months ago | 1 answer | 0
1
answerQuestion
How to find Quadratic Damping?
Hi, I have a time series data set from a motion decay test (sample attached). load('sampleData.mat'); % whos figure plot(...
9 months ago | 1 answer | 0
1
answerQuestion
How to plot direction of forces on a body with polar plots or similar?
I'm simulating the forces acting on a stationary object. I have a data sample of a time series that includes Forces, and the dir...
10 months ago | 1 answer | 0
1
answerQuestion
How to Curvefit amplitude output of a spring-mass-damper system to find coefficients?
First of all, I'm not sure if the title gives the right idea, and if this is possible. If that's the case, my apologies in advan...
10 months ago | 1 answer | 0
1
answerQuestion
How to build and use a LowPass (or HighPass) Filter in real-time in a time domain simulation?
I'm new to control aspects and have not worked with filters before. I've been reading up on the documentation provided by Matlab...
10 months ago | 1 answer | 0
1
answerQuestion
Why am I getting two different data arrays with the same set of data?
The title is a bit ambiguous, but I will try my best to explain. I have a 4-D complex data set (see attached). First, I'm wri...
1 year ago | 1 answer | 0
1
answerQuestion
A little help with translating a piece of Fortran code to Matlab
I know this is bit of an odd question, and I'm sorry if this is against any community rules. I'm troubleshooting a Fortran cod...
1 year ago | 2 answers | 0
2
answersQuestion
How to interpolate from a dataset using interp3?
Hi, I have a dataset (4-D complex double) of dimensions 32 x 31 x 21 x 6. The first three parameters 32x31x21 defines two frequ...
1 year ago | 2 answers | 0
2
answersQuestion
Help on solving nonlinear coupled equations with Runge-Kutta approach
I have the following piece of code. I'm providing a "piece" here, since the full code is quite lengthy and I think the following...
1 year ago | 1 answer | 1
1
answerQuestion
Help with solving a system of coupled equations of motions in time domain?
Hi, I've posted a similar post here, and I learned much through that post and comments. Now, I'm building on it and the system ...
1 year ago | 1 answer | 0
1
answerQuestion
How to combine two vectors column-by-column?
I have two matrices, A and B. A = [1,3,5,7,9,11,13,15] B = [2,4,6,8,10,12,14,16] How can I combine these two to give me a thi...
2 years ago | 2 answers | 0
2
answersQuestion
How to sum up every other column of a matrix?
Suppose I have a matrix A, A=[1 2 3 5 1 2 3 5;3 4 6 7 1 2 3 5;5 6 8 9 1 2 3 5] How can I sum up column(1) and column(3) to for...
2 years ago | 1 answer | 0
1
answerQuestion
readmatrix ignores the first line of the data file
I'm trying to read a text filw with over 226,600 rows with readmatrix (sample is over 5MB so I couldn't attach it here). The fir...
2 years ago | 2 answers | 0
2
answersQuestion
How to read a specially structured data file with different structures
I asked a similar question on the forum only to realize that I had worded it poorly and incompletely. My apologies for the repet...
2 years ago | 1 answer | 0
1
answerQuestion
How to read a specially structured data file
I have a *.5P file (file is an output from the software WAMIT, and can be read by Matlab and/or any text editor) that I want to ...
2 years ago | 3 answers | 0
3
answersQuestion
Why doesn't my plot "go to infitnity"?
Probably a silly question, but I couldn't figure out the reason! I have, x = [0.00,0.10,0.19,0.29,0.38,0.48,0.58,0.67,0.77,0.86...
2 years ago | 1 answer | 0
1
answerQuestion
How to Interpolate coordiantes and values of a surface plot
Hi, I have a set of coordinates that creates a mesh - i.e. XYZ coordinates of a set of quadrilateral panels that creates a mesh...
2 years ago | 1 answer | 1
1
answerQuestion
How to sum up multiple cell arrays (column-wise)?
I have a set of data in the form of a 26x32 cell array. Each cell consists a 6x6 matrix. I have attached the dummy file here. H...
2 years ago | 1 answer | 0
1
answerQuestion
Can I change iteration value in following for loop?
Suppose I have the following code. nf1 = 3; nf2 = 4; panel_no = 1:12; R_vx = rand(144,1); for i = 1:nf1 for ii = 1:nf...
2 years ago | 1 answer | 0
1
answerQuestion
Help with storing data in a 4-D double matrix
I have a data set in the form of 8 columns. I have attached a dummy xlsx file to show the data structure. As it can be seen, th...
2 years ago | 1 answer | 0
1
answerQuestion
How to solve a system of coupled, differential equations of motions?
Hi, This follows a previous post that I posted, where I was wrong with formulation and assumptions. I learned the mistake there...
2 years ago | 0 answers | 0
0
answersQuestion
How to solve a system of coupled, non-homogenous differential equations of motions?
Hi, First, I must say that I'm still learning the mathematics behind the governing equations, and I know I have a long way to g...
2 years ago | 1 answer | 0
1
answerQuestion
How to check if two planes intersect with each other?
Suppose I have two planes defined by four points (each) as follows. For ease of explanation, I will follow a graphical approach....
2 years ago | 2 answers | 0
2
answersQuestion
Store mxn matrix within a for loop
How can I store results of a for loop when one iteration gives m x n matrix and not a 1 x n matrix? a = rand(20,12); for k=...
2 years ago | 1 answer | 0
1
answerQuestion
How can I store all outputs from a nested for loop?
I know this might be a common problem, and tried a lot of different answers posted under similar questions. Anyway, here's a bas...
2 years ago | 1 answer | 0
1
answerQuestion
How to replace values of a vector based on the values of another vector?
I have two vectors that together create a cartesian grid, such as this. xmin = 0; xmax = 500; ymin = -200; ymax = 200; c...
4 years ago | 1 answer | 0
1
answerQuestion
How to set ticks in imagesc colorbar based on a matrix value?
I'm using imagesc to display a graph/image, and I'm having trouble with the piece of code dislpayed here - specifically the tick...
4 years ago | 1 answer | 0
1
answerQuestion
How can I interpolate a datetime data series to have an interval of 1 minute in MATLAB?
Hi everyone, I'm analyzing a sample dataset from a .csv file (Attached). The columns are: "Ref number, MMSI, Latitude, Longitud...
4 years ago | 1 answer | 0
1
answerQuestion
How to create matrices from a table and extract specific data from it to make plots?
I'm sorry if the title is confusing. But I'm stuck at a point and I will appreciate any tip or help! I'm reading a series of AI...
4 years ago | 1 answer | 0
1
answer
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