Community Profile Last seen: 2 Tage ago Active since 2018

Communication through MATLAB is always better than arguing.

#### Statistics

All
• • • • • • • • • • • #### Content Feed

View by

How to find first instance of a value in array?
help find % read the third explanation

19 Tage ago | 0

How to average certain columns in a matrix
T = array2table(rand(2, 3)) T = [T(:, 1), array2table(mean(T{:, 2 : end}, 2), 'V', {'AVERAGE'})] % where Var1 is the time data

21 Tage ago | 0

How to average certain columns in a matrix
matrix = rand(107, 16); Matrix = [matrix(:, 1), mean(matrix(:, 2 : end), 2)]; size(Matrix)

21 Tage ago | 0

| accepted

Logical Indexing with matrix
C( A & B ) = C( A & B ) + 1

etwa ein Monat ago | 0

| accepted

How can I make this work, I don't know where i went wrong.
1 / (1 + cos(4*x)) %is not the same as 1 / 1 + cos(4*x) % likewise for last question

etwa ein Monat ago | 0

| accepted

can anyone help me to solve these error
function [y] = specvol(V) % change capital V to v

etwa ein Monat ago | 0

SIMPLE MATH ERROR CALCULATION
Click on the tag floating-point round((9.2^2 * 1e2) / 1e2, 3) % since you're using a hardware , not sure using a sym class woul...

etwa ein Monat ago | 0

convert data from two 3D arrays into three 2D arrays

etwa ein Monat ago | 0

This is my attempt to generate and plot this signal .. which one of these is right? .. please help
A = 3; [B, C] = deal(4); u = @(t) t >= 3 + 0.5 * A; u1 = @(t) t >= 3 - 0.5 * A; u2 = @(t) t >= C + 0.5 * B; u3 = @(t) t >= ...

etwa 2 Monate ago | 1

| accepted

Saving a Matrix as an Image and then extracting same matrix from Image.
SMAG = im2double(b) %

etwa 2 Monate ago | 0

| accepted

How to find the mean of 12 different 3-D arrays containing nan so that I can omitnan in the final calculations?
Use mean() with "Omitnan" flag help mean

etwa 2 Monate ago | 0

| accepted

https://www.mathworks.com/help/matlab/ref/fft.html a good starting point

2 Monate ago | 0

theory parts from the documentation -usage
The volunteers here are there to contribute to questions related to coding. For legal questions you would be better off to conta...

2 Monate ago | 0

Question

Is there a way to viewmark as images?
Any possible way to extract viewmarks from Simulink as images?

3 Monate ago | 1 answer | 0

### 1

Moving specific .mat files to a new folder
help movefile

3 Monate ago | 0

Data Plotting in a Single Figure
U = setdiff(10 : 10: 100, 80 : 10 : 90); V = 1e2 : 50 : 450; X = sort(randi(400, size(U))); Y = sort(randi(98, size(U))) .*...

3 Monate ago | 0

| accepted

how to sum a result with multiple values

3 Monate ago | 1

| accepted

How to use Solver?
Use vpasolve()

3 Monate ago | 0

| accepted

Index a Matrix that gets smaller
for ind = size(RAW): -1 : 2

3 Monate ago | 0

| accepted

Error on my matrix
t_pn = (im2double(t) + p.' / 2) / 2;

4 Monate ago | 0

i have an Error using ^
Change * to .* in all the places.

4 Monate ago | 0

| accepted

Save a double array to a text file

4 Monate ago | 0

problem in solving matrix
I = A \ V

4 Monate ago | 0

Can't solve for x with (a = y/x)
syms y a x eqn = a == y/x; s = solve(eqn, x)

4 Monate ago | 0

solving symbolic array to output a numerical solution
struct2array(Ma3)

4 Monate ago | 0

removing rows from a timetable
load combined_observed_vs_sim_timetable combined_data(1 : 12, :) = [ ]

4 Monate ago | 0

Array indices must be positive integers or logical values.
ii = 0.01:0.02:0.99; w1_temp= ii; w2_temp= 1-ii; Rp_temp= w1_temp*mean(R_2(:,1))+w2_temp*mean(R_2(:,2)); ...

4 Monate ago | 0

Why does contains(var1, var2) find matches in two different string arrays?
ch_names = {'FP1','FPz','FP2','AF7','AF3','AF4','AF8','F7','F5','F3',... 'F1','Fz','F2','F4','F6','F8','FT7','FC5','FC1...

5 Monate ago | 0

| accepted

Save variable of workspace in another folder
save('C:\Users\Desktop\folder\POWER.mat', 'POWER')

5 Monate ago | 3

| accepted