Community Profile

photo

BobH


Last seen: 4 meses hace Con actividad desde 2020

Estadísticas

  • Knowledgeable Level 3
  • 3 Month Streak
  • Knowledgeable Level 2
  • First Answer

Ver insignias

Content Feed

Ver por

Respondida
getting the information from the figure
For recent versions of MATLAB (R2019a and after), the help on writematrix has useful examples that I think apply to your questio...

casi 4 años hace | 0

Respondida
I am trying to put zero on top of each generated column.
Your first reshape is the right approach, to arrange the values into a matrix with the right number of columns ws = 6; ...

casi 4 años hace | 0

| aceptada

Respondida
Validating each value using a while loop
I think your while loop needs to have the input() within it While the user hasn't given a valid number Ask for a number ...

casi 4 años hace | 0

Respondida
How can I get my minimum spanning tree to select only one edge?
If this calculation is a smaller part of a larger problem like determining the shortest path between a pair of distant nodes, th...

casi 4 años hace | 0

Respondida
getting the information from the figure
This older question/answer suggests adding the 'Tag' property to the plot. https://www.mathworks.com/matlabcentral/answers/1166...

casi 4 años hace | 0

| aceptada

Respondida
How to match two arrays in Matlab
Is this what you are trying to get? Second column of B based on C matching A A = 1:10; B = [21 22;10 11;23 25;33 30;32 35;21 ...

alrededor de 4 años hace | 0

Respondida
How to quickly find the column index of the last non-zero element in all rows in a sparse matrix?
reorderRow = arrayfun(@(X) find(A(X,:),1,'last'), 1:size(A,1)) reorderRow = 1 2 3 2 3

alrededor de 4 años hace | 0

| aceptada

Respondida
Help with extracting info from a listbox in a specific way
You can build a cell array using the row as the index, and each element of the cell array can be a numeric array of the column(s...

alrededor de 4 años hace | 0

| aceptada

Respondida
Replace string and then place it again
This is intentionally backwards from what you asked; adjusting it to start with all '#' is for you helpful: https://www.mathwor...

alrededor de 4 años hace | 1

| aceptada

Respondida
Reordering string arrays if string is >9
sort_nat is powerful, and has helped me several times. An alternative for simple number/not-number values is straightforward f...

alrededor de 4 años hace | 0

| aceptada

Respondida
How to sum matrix of different size on Simulink? (R2019a)
The dimensions must agree, in MATLAB. Z = zeros(400,32); O = ones(1,32); Z+O; Error using + Matrix dimensions must agree....

alrededor de 4 años hace | 1

Respondida
Using 'for loop' on a function call
If you want to iterate along x_min and x_max, you can use a single counter in your for loop for i = 1 : length(x_min) % both v...

alrededor de 4 años hace | 0

| aceptada

Respondida
Concatenating vectors based on list of variable names
c = cellfun(@eval, order, 'un', 0); r = vertcat( c{:} ); % horzcat if that's what you wanted, and all variables in order are...

alrededor de 4 años hace | 0

| aceptada

Respondida
How do I delete cell elements from a cell array?
function kmvsolve hw_i = {'K',5,2; 50,4,'v'; 70,'m',9 }; hw_o = physicsHW( hw_i ) end function out = physi...

alrededor de 4 años hace | 0

Respondida
Why is my code messing up on this specific test case?
function out = lostAtSeaCucumber( vec, srch ) collected = ''; % temporary storage for names visited = zeros(size(ve...

alrededor de 4 años hace | 0

| aceptada

Respondida
How can I index a vector based on the vector's values?
V = [2 5 4 1 3]; R(1) = V(1); for i = 2:length(V) R(end+1) = V( R(i-1) ); end R % new vector R = 2 5 3 ...

alrededor de 4 años hace | 0

| aceptada

Respondida
Change Julian date read in from excel to a MM-dd-yyyy form and plotting
see https://www.mathworks.com/help/exlink/convert-dates-between-microsoft-excel-and-matlab.html and perhaps this old question w...

alrededor de 4 años hace | 0

| aceptada

Respondida
Importing txt files and using loops
Similar to Mario Malic but using regular expressions R = []; % init to empty fid = fopen('J94.txt','r'); t = fge...

alrededor de 4 años hace | 0

Respondida
Shifting of 3D curve
You seem to be dividing the axis scale by 5. The same steps also apply to 'XTickLabel' ylabel = get(gca, 'YTickLabel') % ret...

alrededor de 4 años hace | 0

| aceptada

Respondida
Reduce MATLAB method startup time
I couldn't find a way to avoid the delay, but I use this to give the user a reason for the delay. It uses my specific situatio...

alrededor de 4 años hace | 0

Respondida
for loop for switch case
would arrayfun work for your code? It would handle both x as a single number and x as a vector, setting 'a' to a single number ...

alrededor de 4 años hace | 0

| aceptada

Respondida
Updating a zeroized matrix with provided row vectors
Force(Nodal_Loads(:,1),:) = Nodal_Loads(:,2:4)

alrededor de 4 años hace | 0

| aceptada

Respondida
how can i deal with .mat file in Matlab?
See load It will add variables from the mat file to your workspace.

alrededor de 4 años hace | 0

Respondida
Find and replace in a character array
See regexprep and remember that to get a single-quote it must be doubled up in the replacement string F='(B~C) + (~AB)'; rege...

alrededor de 4 años hace | 0

Respondida
Storing the output of a program in a matrix
Do you mean like this? progA = @() 42; % return 42 for each invocation y = progA() y = 42 z = arrayfun(@(X) progA(),...

alrededor de 4 años hace | 0

Respondida
Coordinates of a 3 by 3 by 3 array
yy=zeros(3,3,3); yy(1,2,3) = 1 yy(:,:,1) = 0 0 0 0 0 0 0 0 0 yy(:,:,2) = 0 ...

alrededor de 4 años hace | 0

Respondida
How to shuffle matrix entries using MATLAB?
perhaps a modification based on the sample code showing use of perms?

alrededor de 4 años hace | 0

| aceptada

Respondida
Extract lines of a three dimensional matrix using an array of indices and NO for-loop
Use column 1 of m to select rows of r in the first >> r( m(:,1), :,1) ans = 1 0 2 1 1 Use column 2 of m...

alrededor de 4 años hace | 0

| aceptada

Respondida
How do I create a matrix from a file from reading the first row and then use that first number to control a "for" loop to build
MOHD AQUIB is on the right track, reading one data point first before the loop, but left out the part within the loop that conti...

alrededor de 4 años hace | 0

Respondida
How can turn two indexing vectors into a corresponding matrix that counts how many locations that point has been hit?
The diagonal of a matrix is those elements whose subscripts are (1,1), (2,2), etc s = sparse(x, y, 1) s = (1,1) 2 ...

alrededor de 4 años hace | 0

| aceptada

Cargar más