Answered
Loop / Repeat if random number = 0
Try n = round(200*rand); while (n == 0) n = round(200*rand); end Or, even better, n = randi(200); % gene...

meer dan 12 jaar ago | 1

| accepted

Answered
How can i calculate e^A*t
Use the expm function for computing a matrix exponential

meer dan 12 jaar ago | 10

Answered
Deleting similar rows in Matrices contained in cell
If I understand your objective, try the following arrayOfElements = ['a','b','c','d']; % your initial array indicesOfUni...

meer dan 12 jaar ago | 0

Answered
Masking out Image area using Binary Mask
Let I be the m-by-n image, and let M be the m-by-n mask. The new image, Inew, will be m-by-n and have zeros everywhere there ...

meer dan 12 jaar ago | 14

| accepted

Answered
Surf z axis not visible
After issuing peaks issue the command zlabel('z')

meer dan 12 jaar ago | 1

Answered
RESAMPLING DATA
One way: numData = xlsread('yourExcelFile.xlsx'); % read in data numDataOut = numData(1:15:end); % subsample (get every ...

meer dan 12 jaar ago | 0

| accepted

Answered
compute the unit vector given the angle
Given the angle theta in radians (counter-clockwise is positive theta, theta = 0 points in the positive x-direction) you...

meer dan 12 jaar ago | 0

Answered
I am writing code for a function but I get an error message
Just replace && with & and double pipes | | with | to operate on nonscalars.

meer dan 12 jaar ago | 2

| accepted

Answered
merge number and character
If x = 3; y = '-'; merge with [num2str(x),y]

meer dan 12 jaar ago | 1

Answered
dividing a matrix into equal submatrices
I assume that your vector, x, is n-by-1 where n is divisible by 10. Try xIntoTenPieces = reshape(x,[],10); which p...

meer dan 12 jaar ago | 0

| accepted

Answered
Problem with the mean function
Try this meanWithoutNans = mean(refoulement(~isnan(refoulement)));

meer dan 12 jaar ago | 0

| accepted

Answered
Count number of specific values in matrix
Try this: numberOfNonZeros = nnz(m==4); Using nnz is more efficient than converting logicals to numeric, which is requir...

meer dan 12 jaar ago | 18

Answered
Operate on Successive Values Without Loops
Totally... first arrange your vectors as column vectors, then try distance = sum(sqrt((x(1:end-1)-x(2:end)).^2 + (y(1:end-1...

meer dan 12 jaar ago | 0

| accepted

Answered
Attempt to have a 3D mesh plot of max value of real part of eigenvalues of a matrix. Shows error saying that 'Error showing Horzcat. CAT arguments dimensions are not consistent' even though my matrix is square.
When you create BKm, you use the output k from meshgrid. The output k is a 1001 square matrix that you are effectively trying t...

meer dan 12 jaar ago | 0

Answered
still not getting the oop concept... please help
You can get the behavior you want if you subclass the handle class. To do this, 1.) replace the line classdef manlists ...

meer dan 12 jaar ago | 1

Answered
matlab trick
I'm assuming the images all have the same extension and that the file format is supported by imread. Also, I'm assuming that th...

meer dan 12 jaar ago | 0

Answered
Integral of sin(cos(x))
Ultimately, are you trying to compute a definite integral? If there are limits, you may be able to use Bessel functions to eval...

meer dan 12 jaar ago | 0

| accepted

Answered
how to click a point in an image
Check out the function ginput doc ginput

meer dan 12 jaar ago | 0

Answered
equality operator between matrix and scalar
The value .1 and a(12) differ by only one bit as a result of numerical round-off. You can see this with the commands num2h...

meer dan 12 jaar ago | 1

Answered
Assigning time points on X axis
If your sampling frequency is 44.1 kHz, then one millisecond comprises 44.1 time samples. So, if x represents the vector of 18,...

meer dan 12 jaar ago | 0

| accepted

Answered
Sorting NaN
This will work newA = a; % copy original matrix isANanRow = any(isnan(a),2); % find rows that have a nan in them % mo...

meer dan 12 jaar ago | 0

Answered
Transforming uniform variables to normal variables
You know that the histogram shouldn't exactly match a Gaussian... Nevertheless, if you use the command above, you are guaranteed...

meer dan 12 jaar ago | 0

Answered
Transforming uniform variables to normal variables
I will assume that your uniform random variables are stored in an array just like the one created with the commands X = ran...

meer dan 12 jaar ago | 0

| accepted

Answered
Using a variable in a matrix then plotting one element of the matrix.
When matlab sees A.*B or A.^B the two arrays A and B need to be the same size. In the expression Z = -M.*Om.^2 + i.*Om.*C + K, ...

meer dan 12 jaar ago | 0

| accepted

Answered
Recursive relation
First, if y depends on the variable x, it would help if you renamed the coefficients in the power series expansion for y from x_...

meer dan 12 jaar ago | 0

Answered
Recursive relation
If I assume a power series solution of the form y(x) = \sum_{k = 0}^\infty\alpha_kx^x, I arrive at the recursion (n+1)\...

meer dan 12 jaar ago | 0

Answered
How to reshape a cell array of cell arrays
I assume your 1-by-10 cell is just like the 1-by-10 cell C created with the commands C = cell(1,10); for i = 1:10 ...

meer dan 12 jaar ago | 6

| accepted

Answered
Quickly converting country names to numbers
I assume your table is a n-by-2 cell array, where the first column contains cells whose contents are the names of each country a...

meer dan 12 jaar ago | 1

| accepted

Answered
MATLAB Matrice Function Question help please?
It's a toeplitz matrix... so use the command toeplitz(0:4) to recreate your example. I'm sure you can extrapolate to t...

meer dan 12 jaar ago | 2

| accepted

Answered
vectorizing nested loops
Sorry, but I don't have a suggestion to vectorize this thing. However, as the following code demonstrates, it looks like you co...

meer dan 12 jaar ago | 1