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How can i find row and column numbers of max value of each field in structure?
clear,clc s.ciao = rand(5); s.hello = rand(5); s.hola = rand(5); s.max = [max(s.ciao(:));max(s.hello(:));max(s.hola(:)...

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How to save a vector 1x k in each element of an m by n matrix?
clear,clc for x=1:368 for y=1:3 for k=1:8760 soc(x,y,k)= it has its equation end en...

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how to select last elements of a row vector?
j = [593,660,725,790,854,919,984,1050,1118,1184, 1300, 1400, 1500, 1600]; j_last5 = j(end-4:end) j_last5 = 1184 ...

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Display equation of exponential fitted line using fit function
See if this works clc clear T = readtable('ViscosityResults.xlsx','Range','L2:M14',... #read spreadsheet and...

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Find local min point in plot between range
A way of doing this could be the following. clear,clc wavelength = 0:100; % Waveleng...

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Unrecognized function or variable
clear,clc E = 0; W = 2; A = 1; t = (0:1.0:10)'; y = B2FrequencyResponse10(t,E,W,A); plot(t,y) title('Step Response of...

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An easy way for adding on pervious row that expands
x = [100; 200; 50; 100]; Muliple = 0.1; x1 = zeros(size(x)); x1(1) = x(1)*Muliple; for i = 2:length(x) x1(i) = (x(i)...

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assigning points to clusters using index array
points = [1 5; 2 6; 4 8]; N = size(points,1); n = N+mod(N,2); x = zeros(1,n); y = x; x(1:N) = points(:,1); y(1:N) = points...

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How to construct a N x N window that moves about an array (R) to calculate the number of a certain element in the window.
You could create a function where you input the starting point of the NxN submatrix (i.e. the row and column representing the to...

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Converting dates in time series
Take a look at this date = '27-Feb-2007 12:00:00'; str = datestr(datenum(date),'yyyy.dd.mm') str = '2007.27.02' ...

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Problems using parfor loop
For the first problem, write this AA = [4 5 6]; parfor r = 1:5 Idx(r)= max(AA); end TT = Idx; Regarding the second one...

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How to get the solutions of inverse cosine (acos) in the interval [0, 2π]?
n = 10; k = 1:n; omegas = sort([k*2*pi-acos(cos_omega),k*2*pi+acos(cos_omega)])' yields solutions up to [(2*n-1)*pi 2*n*pi]. ...

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How to function 𝑎𝐴 + 𝑏𝐵 → 𝑝P in ODE89
This should work: clear,clc tspan = [0,10]; y0 = [1,1,0]; [t,y] = ode89(@yourODEsystem,tspan,y0); plot(t,y) legend(...

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How to create this patterned matrix?
Generalizing for any nxn matrix clear,clc n = 9; A = zeros(n); for i = 1:n A(i,i+1:n) = flip(i:n-1); if i > 1 ...

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Having trouble modeling temperature flux through a building
The following code works % Identify Constants k1 = 0.2; % W/(m^2*K) k2 = 3; % range from 1 to 10 W/(m^2*K) k3 = 0.5; % W/(m^...

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how to fill an array with data from intercalated/multiple range columns
A1 = A(1:2000,[1:40,42:50]);

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How to generate data using for loop and save in rows in MATLAB
Something like this? clear,clc Repeat=randi([1 1000], 1, 10); for i=1:200 prf=randi([1 1000], 1,10); DS(i,:) =r...

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For repeating values in a column calculate the corresponding adjacent columns
I have expanded it for cases where there are multiple repeated values. clear,clc A = [[(1:6)';(6:10)';(10:14)';(14:20)'],rand...

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find the location of a vector in a cell array and extract the last element of that vector
clear, clc A{1} = {[1,1,5] [1,2,5] [1,3,5] [1,4,5]}; A{2} = {[2,1,6] [2,2,6] [2,3,6] [2,4,6]}; tofind = [1 3; 2 4...

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How to detect and remove outliers in excel data using matlab
I'd try something like this clear, clc T = readtable('excelfilename.xlsx'); time = T.time(T.dni > mean(T.dni)-3*std(T.dni...

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How to normalize data between 0 and 1
Given the matrix A that you want to normalise, you could write A = A/max(A(:));

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How can I create a matrix that represents all possible "recipes" of 3 chemical components? (i.e., the 3 chemical components must be positive and sum to 100 wt%)
I am going to assume that the percentage of each compound can be rounded to the first decimal digit. Then I would recommend usi...

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Why is my plot missing lines?
It actually plots 9 lines, but the 1st and 2nd are equal, and the same goes for the 4th and 5th, and 7th and 8th. So they over...

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How to create Matrix [1 2 3 4; 2 4 6 8; 3 6 9 12; 4 8 12 16] without using loops or any functions using loops?
To make it more general n = 4; a = 1:n; A = repmat(1:n,n,1).*a'; For instance, if n = 6 this will generate A = 1 ...

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Put name on above and left
All elements in an array must be of the same type, i.e. you cannot merge numbers with characters unless you turn the numbers int...

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Error with Invalid indexing in system of differential equations
I think the problem is in the syntax of your last line. You should simply write sSol = dsolve(odes,conds); I run this on MatL...

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How to find the maximum value from a matrix without using max syntax?
I guess you could try something like this A = randi(100,4,8); for i = 1:size(A,1) for j = 1:size(A,2) if any(A(...

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How to make a function that outputs true or false (logical) if a number inputted is in a predetermined vector?
function testLucky % testLucky - determine whether x is a lucky number % return true (1) if x is a lucky number % return fals...

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

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Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

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