Answered

How can i get one GUI to trigger another GUI?

What you could do is <http://nl.mathworks.com/help/matlab/ref/handle.addlistener.html add a listener> in GUI_2 to an object in G...

How can i get one GUI to trigger another GUI?

What you could do is <http://nl.mathworks.com/help/matlab/ref/handle.addlistener.html add a listener> in GUI_2 to an object in G...

circa 3 anni ago | 0

| accepted

Question

All iterative solvers seem to fail for 3D poisson eqn

I have written a function that sets up a sparse matrix _*A*_ and RHS _*b*_ for the 3D Poisson equation in a relatively efficient...

circa 3 anni ago | 0 answers | 0

Question

Optimization using lsqnonlin on very distinct data sets that depend on the same variables

I am working with some large data sets ( _N_ rows of data with 1 parameter varied, each consisting of _M_ points) for which it i...

circa 3 anni ago | 0 answers | 0

Question

Diary does not print backspace ('\b') properly - alternative/solution?

I have a bunch of scripts + functions that output their progress to the command window. At the same time I would like to write t...

oltre 4 anni ago | 3 answers | 0

Answered

Sorting an array of strings based on number pattern

Ok, I should've searched better... Problem solved with a <http://www.mathworks.com/matlabcentral/fileexchange/47434-natural-o...

Sorting an array of strings based on number pattern

Ok, I should've searched better... Problem solved with a <http://www.mathworks.com/matlabcentral/fileexchange/47434-natural-o...

oltre 4 anni ago | 0

| accepted

Question

Sorting an array of strings based on number pattern

I'm looking for an _efficient_ way to solve the following issue: Typically I read out all files in a directory that match a c...

oltre 4 anni ago | 2 answers | 0

Solved

2 b | ~ 2 b

Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

oltre 4 anni ago

Solved

Solving Quadratic Equations (Version 1)

Quadratic equations have the form: ax^2 + bx + c = 0. Example: x^2 + 3x + 2 = 0, where a = 1, b = 3, and c = 2. The equation has...

oltre 4 anni ago

Solved

Find a Pythagorean triple

Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

oltre 4 anni ago

Solved

Pattern matching

Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

oltre 4 anni ago

Solved

Rotate counterclockwise a matrix 90 deg with left-bottom element

Example: Input [ 1 2 3 4 5 6 ] Output [ 3 6 2 5 1 4 ]

oltre 4 anni ago

Answered

Output of changing number of columns

I believe a simple *repmat* should do the trick: fprintf(out, repmat('%14f ',[1,size(array,2)]), array);

Output of changing number of columns

I believe a simple *repmat* should do the trick: fprintf(out, repmat('%14f ',[1,size(array,2)]), array);

circa 5 anni ago | 1

Answered

I'm using a for loop to create a new random variable X with range [0 1], I want the forloop to ignore values above 1 and iterate untill all the values are in range.

Change your *for*-loop to a *while*-loop if you want to keep looping. I also believe that you stored your data incorrectly, as ...

I'm using a for loop to create a new random variable X with range [0 1], I want the forloop to ignore values above 1 and iterate untill all the values are in range.

Change your *for*-loop to a *while*-loop if you want to keep looping. I also believe that you stored your data incorrectly, as ...

circa 5 anni ago | 0

| accepted

Answered

read a mat file once it appears in the folder?

One approach you could use is to write the filenames of all the current .mat files to e.g. a text document. You can import the c...

read a mat file once it appears in the folder?

One approach you could use is to write the filenames of all the current .mat files to e.g. a text document. You can import the c...

circa 5 anni ago | 1

| accepted

Answered

Help with 'Variable 'sa' is undefined on some execution paths'

You have 6 if-statements. Could it be that your x falls out of the ranges you've specified? Just for clarity - your total ran...

Help with 'Variable 'sa' is undefined on some execution paths'

You have 6 if-statements. Could it be that your x falls out of the ranges you've specified? Just for clarity - your total ran...

circa 5 anni ago | 0

Answered

Collecting a key press

It would be good if you provide us with a snippet of the code you are using right now. With the current information provided,...

Collecting a key press

It would be good if you provide us with a snippet of the code you are using right now. With the current information provided,...

circa 5 anni ago | 0

| accepted

Answered

How to calculate the area of the green shaded region in MATLAB

Is it not possible to simply calculate the difference between your y-values and the straight line, take the mean of every 2 neig...

How to calculate the area of the green shaded region in MATLAB

Is it not possible to simply calculate the difference between your y-values and the straight line, take the mean of every 2 neig...

circa 5 anni ago | 0

Answered

How to solve multiple equations dependent on each other?

Since you depend on your previous answers, you can simply loop through the equations and store the answers. x = ones(1,10);...

How to solve multiple equations dependent on each other?

Since you depend on your previous answers, you can simply loop through the equations and store the answers. x = ones(1,10);...

circa 5 anni ago | 0

| accepted

Answered

why doesn't the function sigshift work when i use it for x(n) = 2x(n - 5) - 3x (n + 4).

Your function *sigshift* seems not to be a built-in function. Are you sure the function/directory it is located in is included i...

why doesn't the function sigshift work when i use it for x(n) = 2x(n - 5) - 3x (n + 4).

Your function *sigshift* seems not to be a built-in function. Are you sure the function/directory it is located in is included i...

circa 5 anni ago | 0

Answered

Is it possible to solve the equation in matlab without rearranging it??

Although I don't see why you would even bother to do it without rearranging, it is easily possible if you have the symbolic tool...

Is it possible to solve the equation in matlab without rearranging it??

Although I don't see why you would even bother to do it without rearranging, it is easily possible if you have the symbolic tool...

circa 5 anni ago | 0

| accepted

Answered

How to delete repeated column in this matrix?

b = unique(a,'rows','stable'); b = 6.7747 15.1502 126 ...

How to delete repeated column in this matrix?

b = unique(a,'rows','stable'); b = 6.7747 15.1502 126 ...

circa 5 anni ago | 2

| accepted

Answered

Find unique values in a sequence containing at least 3 elements

u = unique(x); a = histc(x,u); y = u(a>=3); This should do the trick. First determine the unique values in the vector...

Find unique values in a sequence containing at least 3 elements

u = unique(x); a = histc(x,u); y = u(a>=3); This should do the trick. First determine the unique values in the vector...

circa 5 anni ago | 1

| accepted

Answered

How to convert from Roman numeral to decimal

The easiest solution is to get yourself a suitable tool from the File Exchange. For example <http://www.mathworks.com/matlabc...

How to convert from Roman numeral to decimal

The easiest solution is to get yourself a suitable tool from the File Exchange. For example <http://www.mathworks.com/matlabc...

circa 5 anni ago | 0

Answered

Index exceeds matrix dimensions, error problem

Your variable _look_ has a length of _eleimg_. You are trying to access some value between 1 and _Nx*Ny*L_ (which is equal to...

Index exceeds matrix dimensions, error problem

Your variable _look_ has a length of _eleimg_. You are trying to access some value between 1 and _Nx*Ny*L_ (which is equal to...

circa 5 anni ago | 0

Answered

How do I make a cell of cells in a for loop?

Your variable _omt1_ is put inside the wrong loop. Right now it is overwritten for every iteration of _k_. What you should d...

How do I make a cell of cells in a for loop?

Your variable _omt1_ is put inside the wrong loop. Right now it is overwritten for every iteration of _k_. What you should d...

circa 5 anni ago | 1

| accepted

Answered

WHAT does this mean?

This probably means that you are referring to something like d(3,3) while the variable _d_ does not exist. You might ...

WHAT does this mean?

This probably means that you are referring to something like d(3,3) while the variable _d_ does not exist. You might ...

circa 5 anni ago | 2

| accepted

Answered

Find string (from table) in cell in matlab

If your cell array contains mixed datatypes, then _ismember_ indeed does not work. However, something like *find(strcmp('You...

Find string (from table) in cell in matlab

If your cell array contains mixed datatypes, then _ismember_ indeed does not work. However, something like *find(strcmp('You...

circa 5 anni ago | 2

Answered

how do I select every single element of matrix except middle

If I understand you correctly, you could do something like this: A(A~=A(ceil(numel(A)/2))) or setdiff(A,A(ceil(nume...

how do I select every single element of matrix except middle

If I understand you correctly, you could do something like this: A(A~=A(ceil(numel(A)/2))) or setdiff(A,A(ceil(nume...

circa 5 anni ago | 0

Answered

problem savind with diary function

If you add diary on after line 27, then it should work.

problem savind with diary function

If you add diary on after line 27, then it should work.

circa 5 anni ago | 0

| accepted

Question

Interpolate arbitrary curve to regular (x,y) grid

Hello, I ran into a problem that I cannot seem to solve in an elegant way. Say, I have a spiral-like curve which I want to...

circa 5 anni ago | 0 answers | 0