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Jake


Active since 2019

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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 ...

2 maanden ago | 2 answers | 0

2

answers

Question


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])....

7 maanden ago | 1 answer | 0

1

answer

Question


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(...

8 maanden ago | 1 answer | 0

1

answer

Question


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...

9 maanden ago | 1 answer | 0

1

answer

Question


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...

9 maanden ago | 1 answer | 0

1

answer

Question


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...

9 maanden ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


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...

meer dan een jaar ago | 1 answer | 1

1

answer

Question


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 ...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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 ...

meer dan een jaar ago | 3 answers | 0

3

answers

Question


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...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


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...

bijna 2 jaar ago | 1 answer | 1

1

answer

Question


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...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


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...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


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...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


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...

ongeveer 2 jaar ago | 0 answers | 0

0

answers

Question


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...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


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....

ongeveer 2 jaar ago | 2 answers | 0

2

answers

Question


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=...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Question


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...

bijna 4 jaar ago | 1 answer | 0

1

answer

Question


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...

bijna 4 jaar ago | 1 answer | 0

1

answer

Question


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...

bijna 4 jaar ago | 1 answer | 0

1

answer

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