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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(:)...

約4年前 | 0

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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...

約4年前 | 0

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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 ...

約4年前 | 1

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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...

約4年前 | 0

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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...

約4年前 | 1

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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...

約4年前 | 0

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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)...

約4年前 | 0

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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...

約4年前 | 0

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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...

約4年前 | 1

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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' ...

約4年前 | 0

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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...

約4年前 | 0

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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]. ...

約4年前 | 1

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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(...

約4年前 | 0

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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 ...

約4年前 | 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^...

約4年前 | 0

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

約4年前 | 0

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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...

約4年前 | 0

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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...

約4年前 | 0

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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...

約4年前 | 1

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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...

約4年前 | 0

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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(:));

約4年前 | 0

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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...

約4年前 | 0

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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...

約4年前 | 1

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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 ...

約4年前 | 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...

約4年前 | 0

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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...

約4年前 | 0

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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(...

約4年前 | 0

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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...

約4年前 | 0

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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.

約4年前

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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] =...

約4年前