Answered
Create a row vector comparing strings in a for loop
index = []; s1 = { 'FMO1','FMO2','FMO3','FMO4', 'BAO1', 'BAO2', 'BAO3', 'BAO4'}; s2 = {'mean','FMO1','BAO4','FMO2'}; for k =...

2 years ago | 0

| accepted

Answered
Plot u=f(x,y,z) with all discrete data
x = rand(1,100); y = rand(1,100); z = rand(1,100); u = rand(1,100); scatter3(x,y,z,20,u,'filled') colorbar

2 years ago | 0

Answered
How can i delete max values for each 5 rows in vector
The following code will apply to any lenght of A and any length N of window from which to delete the maximum, provided that leng...

2 years ago | 0

Answered
Why the out varies largely in fixed versus variable time step?
That is because the fixed time step is not able to resolve the very steep change in the variable value that is clearly shown in ...

2 years ago | 0

| accepted

Answered
Find elements having a specific row and column numbers in a matrix
If the answer is the diagonal, then I'd use the diag function. However, if you are still interested in generalizing the code, y...

2 years ago | 0

Answered
How can we plot different signals S1 S2 and S3 on same y-axis with different values? I have attached a figure for reference.
Assume you have three signals which may overlap when plotted like so x = linspace(154,157,100); s1 = rand(1,100); s2 = rand(...

2 years ago | 0

| accepted

Answered
A table of s versus t.
There are a couple of errors in your code. First, the way you define the array t. Second, for array operations, use the dot no...

2 years ago | 0

Answered
A compact way to (i) sum two rows and two columns and then (ii) remove one of the two summed rows and one of the two summed columns
Your way is already quite compact. Maybe what you want to avoid is having to concatenate. Then, you could try this. x1 = [1 0 ...

2 years ago | 0

| accepted

Answered
How to form a matrix based on the order of input
Input= [110 101 011 111 100 001 010]; M = Input == sort(Input)'

2 years ago | 1

| accepted

Answered
function handle as array
That's because mtimes(a,b) = a*b, and if a is 4x4 and b is 4x1 than the operation yields a 4x1 array. I think what you might wa...

2 years ago | 0

Answered
Identify the duration of zero values and count the number of such zero regions
Use regionprops time = 0:100; signal = rand(size(time)); signal([3:6,15:21,43:55,61:64,87:92]) = 0; plot(time,signal) r = r...

2 years ago | 0

| accepted

Answered
How to count number of ones and zeros in a binary number?
I will assume that your binary numbers are stored as a character array, which is how Matlab normally works, e.g. A = dec2bin(20...

2 years ago | 1

| accepted

Answered
Solving a differential equation
Since you have data for V and C you could fit them with the analytical solution of the differential equation. Let's assume this...

2 years ago | 0

Answered
solving a dynamic equation
Hi @sam - you did not provide enough info for us to try and give a complete answer, but I did some guessing and came up with a s...

2 years ago | 0

Answered
Forward Euler solution plotting for dy/dt=y^2-y^3
There are a couple of issues with your code 1) Indexes in MatLab start at 1, not 0, so y(0) is not valid syntax and must be rep...

2 years ago | 0

| accepted

Answered
Dot indexing is not supported for variables of this type.
You are assuming that sh_16_data is a structure. Instead, do sh_16_freq = sh_16_data(:,2)

2 years ago | 0

Answered
find columns adjacent to logical values
Reductive example. Assume this is your matrix A = rand(10,5) and let's assume your logical criteria is that you want to extra...

2 years ago | 0

| accepted

Answered
Loop plotting for individual years
There's no legend in the example below, because I am not sure what you wanted to do with the cellfun function. Nevertheless, it...

2 years ago | 0

| accepted

Answered
How to vertically concatenate many tables produced from a for loop
I would try something like this M = []; for k=1:numel(A) % automatically brings in the correct amount of tables M = [M;re...

2 years ago | 0

| accepted

Answered
Duplicating an entire vector
A=[1 2 3 4]; repmat(A,1,3)

2 years ago | 1

Answered
plotting graph with 2 different size of vector
Applying diff to a Nx1 array produces an (N-1)x1 array, hence your problem. In truth, you are not really calculating the deriva...

2 years ago | 0

| accepted

Answered
Build a matrix with a gradual value of intensity and an horizontal line with a constant value
A = repmat(linspace(0,1,1000),500,1); A(220:280,:) = 0.5; imshow(A)

2 years ago | 0

| accepted

Answered
removing specified data from variable
I think the following code is a simpler way of achieving your task, but it does not implement the "pulling a number from a rando...

2 years ago | 0

Answered
Call different functions inside a function
The way you have explained it in your question is already correct. See the example below. %% Main script mainfunction %% Mai...

2 years ago | 1

Answered
Create an airfoil in MATLAB
From the wikipedia page https://en.wikipedia.org/wiki/NACA_airfoil t = 0.25; % maximum thickness as a fraction of the ch...

2 years ago | 0

Answered
Saving Multiple .dat files
This should work A = rand(2000,1000); for col = 1:size(A,2) filename = ['Column_',num2str(col),'.dat']; writematri...

2 years ago | 0

| accepted

Answered
MATLAB double addition format long
I suggest reading the following thread https://ch.mathworks.com/matlabcentral/answers/1838113-wrong-sum-50-0-01

2 years ago | 0

| accepted

Answered
How do I find slope for large dataset?
Just do A = diff(data)./diff(time);

2 years ago | 0

| accepted

Answered
How do i set up a legend for a graph with variable parameters?
t = -2:0.1:4; d = 1; c = 1; A = 1:0.2:2; figure hold on for i = 1:length(A) y= A(i) * (t - d).*(t-c) ; plot (...

2 years ago | 0

Answered
Generate Alternating Tones Based On Number Of Cycles
I am still quite unsure if this is what you are asking, but I will give it a go. [t,w] = wave(465); plot(t,w) function [t,f] ...

2 years ago | 0