Answered
Not enough input arguments error
% Call the function [tVec,xVec]=fxNthOrderPolysignal([0 10], [1 2 3 2 1]); % Define the function in the same file or separate ...

3 years ago | 0

Answered
I want to shift vector values one by one to the left
num=[1 1 1 0 0 0 0 0] for i=1:3 num = circshift(num, -1) end

3 years ago | 0

Answered
import text file using importdata
You data format is a special format. You can consider to read them as text and then extract individual information. Otherwise ...

3 years ago | 0

| accepted

Answered
How to use the @ function calling when the function is defined as a variable?
MyfunctionStr='rand'; %'runf' Myfunction = str2func(MyfunctionStr); %[x,y,z]=@Myfunction x = Myfunction()

3 years ago | 1

| accepted

Answered
How to extract a string before a number?
str = 'abcd-xyzw-1.2.3.zip'; str2 = 'abcd_xyzw_2.3.1.zip'; idx = regexp(str, '\d'); sub_str = str(1:idx(1)-1) idx = rege...

3 years ago | 0

| accepted

Answered
Create text variable from one other
% Use char array Text = "Alex" Text1 = char(Text); Text2 = string(Text1(1:2:end))

3 years ago | 0

| accepted

Answered
why the figure of cos function does not symmetric around y axis?
p=[ ( 0.9000 - 0.0010i) (0.4243 + 0.0017i) (0.1000 + 0.3000i) ]; p1=[(0.9000 + 0.0010i) (0.2121 - 0.0008i) (0.1000 - 0.3000i...

3 years ago | 0

Answered
Chage elements of a matrix
Matrix = ones(5,4) n = numel(Matrix); Matrix(1:2:n) = randn(size(1:2:n))

3 years ago | 0

| accepted

Answered
How to create vector which is linear combination of a matrix
M = [1,2,3; 4,5,6; 7,8,9] vec= sum([2*M(:,1) 3*M(:,2) 4*M(:,3)], 2) % Alternatively vec =M*[2; 3; 4]

3 years ago | 1

Answered
Creating vector from a matrix
A = randn(3:4) v = A(1:2:end)'

3 years ago | 0

Answered
Code to input function
% fstr = input("Key in a function of x (eg. x.^2 + 2*x - 1): ", "s") fstr = "@(x) x.^2 + 2*x - 1"; % This is for on-line matl...

3 years ago | 0

Answered
Min between integer and empty array
X = [1,2,3,4,10,11]; Y = [1,2,3,4,5]; indice = min([find(X>10,1),find(Y>10,1)]) % use brackets

3 years ago | 2

| accepted

Answered
my rand operation is applied correctly, I think but it's not working.
Check out the line: dOdt(i) = o(i); %o(1,:); ti = 0; tf = 10E-3; tspan=[ti tf]; y0=[1; 1; 0; 1; 1; 0; 1; 1; 0; 1; 1;...

3 years ago | 0

| accepted

Answered
Write data into existing PowerPoint Table
https://www.mathworks.com/help/rptgen/ug/update-presentation-content-programmatically.html Check out the above link in document...

3 years ago | 0

Answered
Why the image size changes after saving it to hard drive?
[o p q]=size(outputImage) % The above shows the size of the outputImage o =256, p=64, q=3 [o p q]=size('AA.jpg') % The above...

3 years ago | 0

| accepted

Answered
Real solution for a variable in an equation
V_plc=0.19; Kf=0.18; Kc=0.1; Kp=0.15; Kb=0.4; Kh=0.05; tau=0.18; Ktau=0.045; Vs=0.002; Kbar=1.5e-5; Ks=0.1; Vpm=1.59e...

3 years ago | 0

| accepted

Answered
Change marker and hide confidence bounds in Plotting multiple linear regression (fitlm)
load carsmall X = [Weight,Horsepower,Acceleration]; % Fit a linear regression model by using fitlm. mdl = fitlm(X,MPG); ...

3 years ago | 1

| accepted

Answered
Perpendicular distance beween two 3D points
d = sqrt((x1-x2).^2 + (y1-y2).^2); % it does not depend on z

3 years ago | 0

Answered
The first argument must be a string array, character vector, or cell array of character vectors
You need to convert DecOriginTime into string that has similar format as MissingTimeList.

3 years ago | 0

| accepted

Answered
I want to find the number of decimal places, and my code is perfectly fine. But for some reason, when my value is 0.888, the length of the decimal is returned as 16.
MATLAB use IEEE double precision format for default numeric type. https://en.wikipedia.org/wiki/IEEE_754 The number of signifi...

3 years ago | 0

Answered
How to change selected pixels color value to 0?
% Get an indexed image Im = imread("peppers.png"); [Im, cmap] = rgb2ind(Im, 256); %whos pval = [ 231 71 115 207...

3 years ago | 0

| accepted

Answered
How to use if and else statement for different tilmestep
Looks like you need to specify time(t) to be different values insead of a constant. q=[ 0.000585366 0.015219512 ...

3 years ago | 0

| accepted

Answered
How to plot the average of the graphs ?
load(websave("SampleData", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1110305/Sample%20data.mat")) %whos ...

3 years ago | 0

| accepted

Answered
3D plot, draw (X,Y,Z,value)
You can use scatter3 with marker size/color to represent value, though it is not a contour. xyzv = [ 1 1 0.000 1.000 ...

3 years ago | 0

Answered
Plot multiple edge sets on one graph?
% Create a graph A = magic(4); A(A>10) = 0; names = {'alpha' 'beta' 'gamma' 'delta'}; G = digraph(A,names,'omitselfloops')...

3 years ago | 0

| accepted

Answered
Display colorbar with evenly spaced tick intervals but unequal difference between tick values
image h=colorbar; % change ticks and ticklabels to the values you want h.Ticks=[0 10 20 30 40 50 100 200 255]; h.TickLabels ...

3 years ago | 0

Answered
I want to draw this step function by script code.
t = linspace(0,11)'; x = square(t*0.25*2*pi); min(x) plot(t,x) ylim([-1.1 1.1]) % Manually specify the points t = [0 5 5...

3 years ago | 0

Answered
Read the audio file given to you and play it from Matlab. Find the number of samples in the audio file (just the length of the array!) and the sampling rate.
Read the audio file given to you and play it from Matlab. doc audioread Find the number of samples in the audio file (just th...

3 years ago | 0

Answered
does 'VPA' changes the type of a data variable ?
vpa(x) uses variable-precision floating-point arithmetic (VPA) to evaluate each element of the symbolic input x. The input to x...

3 years ago | 0

Answered
Cell input to ode45 function
You can take all variables as an vector instead of cell array. For example, y = [X(t), S_1(t), ... S_7(t), P(t), V(t)]'. Then...

3 years ago | 0

| accepted