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**Content Feed**

Control structures

This is an answer that you could easily have gotten yourself by looking at the Getting Started section of the documentation

6 years ago | 1

Is there a way to run a function every time Matlab returns to its command prompt

If you can get the handle to the command window (I'm sure Yair has done similar things at some point; take a look around <www.un...

10 years ago | 0

Factorization

For any prime p and positive integer n, the factors of p^n are all of the form p^k for 0 <= k <= n. So the factors of 2^1024 ar...

10 years ago | 0

TUTORIAL: How to format your question

Is this tutorial supposed to be just about how to format code, or is it how to use formatting in general? If the latter, then t...

10 years ago | 1

| accepted

How does Matlab build-in Quasi-Newton method calculate the gradient?

I don't have a direct answer for you, but you can dig into it a little bit further by typing edit fminunc at the command...

10 years ago | 0

Simple calculations?

Perhaps you're looking for res = diff(n1)./diff(n2); %?

10 years ago | 0

| accepted

data sharing Between two GUIs

Take a look at Matt Fig's <http://www.mathworks.com/matlabcentral/fileexchange/24861-41-complete-gui-examples>, specifically GUI...

10 years ago | 0

replacing blank values in a single column cell array with the previous value

Pending the answer to Sean de's comment, I will assume the first entry is not blank: for ix=2:length(A) if isempty(A{ix})...

10 years ago | 2

| accepted

Msgbox ico change

It is the third argument, and is described here: doc msgbox EDIT: Ok, I still don't totally understand what you're asking fo...

10 years ago | 1

| accepted

cell array or multidimensional array?

Obviously it depends: is all of your data numeric, or are the data types mixed? If the data is all numeric, then I'd say stick ...

10 years ago | 4

creating a unique variable for the outputs of a for loop?

Your final multiplication is matrix multiplication, right? In what order should it be done? Assuming it should be done in the ...

10 years ago | 1

Matlab to MPG

Are you sure mpgwrite was a MATLAB function, and not <http://www.mathworks.com/matlabcentral/fileexchange/309 this FEX submissio...

10 years ago | 0

GUI Text box

Well, I suppose you could do something like eval(['x(n)=' get(...)]); Or you could use evalin: doc evalin But ev...

10 years ago | 0

Why do you come to "MATLAB Answers"?

When Answers was first instituted, I didn't really see the need for it in addition to CSSM. But it does seem to have a bit high...

10 years ago | 2

Getting external variables from GUI

Another way is to save your data to a .mat file and load it in your GUI at runtime. Create a 'Load' button in your GUI, with ca...

10 years ago | 0

Creating a matrix that looks similar to a 10x10 timestable grid from x = [1:10] and y = [1:10]

>> x=1:10; >> y=1:10; >> x'*y ans = 1 2 3 4 5 6 7 8 9 10 2...

10 years ago | 0

| accepted

What frustrates you about MATLAB?

"It is cross platform, making code easy to share (assuming the other people have forked out for the not-so-cheap license)." Thi...

10 years ago | 0

Using unique.m function on NaNs

If you have some application for which you need to ignore NaNs rather than take them into account, you could replace them with s...

10 years ago | 0

Inner function parameters by value or by reference?

<http://www.mathworks.com/matlabcentral/answers/152-can-matlab-pass-by-reference> <http://matlab.wikia.com/wiki/FAQ#Can_MATLAB_...

10 years ago | 0

Wrong values with greater than, equal and less than or equal functions

<http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F>

10 years ago | 6

| accepted

Excel reading - xlsread

Use the third output of xlsread: [data, txt, raw] = xlsread(...); The "raw" output is a cell array which contains all of...

10 years ago | 1

| accepted

TUTORIAL: how to ask a question (on Answers) and get a fast answer

Do: * Check the <http://matlab.wikia.com/wiki/FAQ FAQ>. * Google search. * Make use of lookfor, doc, and help commands. * ...

10 years ago | 9

Adding a GUI to existing code

When you say you were "given some code" and you want to "put a GUI into already existing code", do you mean you have a function ...

10 years ago | 0

How to set timer

You might want to take a look at Matt Fig's <http://www.mathworks.com/matlabcentral/fileexchange/24861-41-complete-gui-examples>...

10 years ago | 0

Finding the maximum value without using built-in functions

Before the loop, create a variable called currMax, and set it equal to 0. Within the loop, with each grade that's entered, comp...

10 years ago | 0

GUI Creation

From <http://www.mathworks.com/help/techdoc/ref/uicontrol_props.html>: Editable text – The Value property does not apply. If Ma...

10 years ago | 2

| accepted

copy graphic to Excel

You could use Yair Altman's screencapture utility from the FEX: <http://www.mathworks.com/matlabcentral/fileexchange/24323-scree...

10 years ago | 0

Problem finding max value of column of an Matrix

The problem you're having is that you recalculate the max of each column on each iteration of the loop. You could move that cal...

10 years ago | 1

How to create a matrix out of single inputs in a loop?

If your grades are entered as strings, you should store them in a cell array: numStudents = 20; % or however many B = cell(...

10 years ago | 1

How to convert string into filename then use load comment to load the file

Have you tried: load [target_file '.mat'] If so, what didn't work the way you wanted? EDIT: It turns out the use of bracket...

10 years ago | 1