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James


Last seen: 3 dagen ago Active since 2019

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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...

14 dagen ago | 1 answer | 0

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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...

16 dagen 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...

17 dagen ago | 1 answer | 0

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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...

ongeveer een maand ago | 1 answer | 0

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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...

ongeveer een maand ago | 1 answer | 0

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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...

2 maanden ago | 0 answers | 0

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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...

3 maanden ago | 1 answer | 0

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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....

3 maanden 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=...

7 maanden ago | 1 answer | 0

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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...

7 maanden 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...

bijna 2 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...

ongeveer 2 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...

ongeveer 2 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...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


Create matrix from 2 columns of a csv file
A CSV file includes all my data in seperate columns and I'm trying to extract them separately for analysis. I'm using MATLAB R20...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


How to implement exponential smoothing for data without a trend/seasonality?
Hi everyone, My data is the form of AIS and I'm only focusing on Speed (SOG - Speed Over Ground) and Course (COG - Course Over ...

ongeveer 2 jaar ago | 0 answers | 0

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answers

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

meer dan 2 jaar ago

Question


Solving second order non-linear equations (time-domain)
Hi everyone, Im starting to learn ODE solving using MATLAB. I'm new to this, although I'm fairly comfortable using MATLAB. (I'm...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Draw the trail of a moving marker on an animated 2D plot
Hi everyone! So, I'm creating a 2D plot where the marker moves from one point to another (nothing fancy, just pausing the plot)...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Contour plot ignores a set of data points
Hello, I'm constructing a contour plot using location (longitude and latitude) and respective depth data. However, the output c...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Reverse the Colormap of Surf plot
Hello, I'm constructing a surf plot using Location (logitude, latitude) and depth data. Following image is the 2D projection of...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Making the white background of a contour map transparent
Hello, I'm wondering if there is a way to make the white background of a contour map transparent. I want to export a contour ma...

meer dan 2 jaar ago | 0 answers | 0

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answers

Question


Transparency of Image overlay on Google Earth (kmz file)
Hello, My purpose is to obtain a contour map using basic Latitude, Longitude, Height/depth data of a location and overlay the i...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Contour map to show ocean depth
Hello, How can I construct a contour map as follows that shows the Ocean depths at a particular location, using Longitude, Lati...

bijna 3 jaar ago | 1 answer | 0

1

answer

Question


Contour plot with filled colors (for x, y, z data)
Hello everyone! I have a dataset that contains Latitude, Longitude and depth/height of a particular area. What I want to do is ...

bijna 3 jaar ago | 1 answer | 0

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answer

Question


Plot Bathymetry data on Google Earth using MATLAB
Hi, I have a set of bathymetry data (Latitude, Longitude, Sea depth) and I want to create a contour map using MATLAB with diffe...

bijna 3 jaar ago | 0 answers | 0

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answers

Question


Solve Finite Element Analysis equation
Hi, I'm trying to solve the following FEM equation for 1D unsteady heat conduction using MATLAB. I'm new to FEM and to the math...

bijna 3 jaar ago | 1 answer | 0

1

answer

Question


Parse error at '=' and ')' in FEM approach
Hi, Following is my code and it is related to FEM. T = zeros(10,5); T(1:10,1) = 10; T(1:10,5) = 50; T(1,2) = 73; T(1,3) = ...

bijna 3 jaar ago | 0 answers | 0

0

answers

Question


Finite Difference Method to find Steady State
Hello, This relates to 1-D unsteady heat conduction using Finite Difference Method (FDM). I have to solve the following equati...

bijna 3 jaar ago | 0 answers | 1

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Question


Finite Difference Method to find Steady State
Hello experts, I have to solve the following equation to find a converged solution. At i=0, T=10 and at i=5, T=50. (n=5) I ...

bijna 3 jaar ago | 1 answer | 1

1

answer

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