Answered

Control structures

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

Control structures

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

4 years ago | 1

Answered

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...

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...

8 years ago | 0

Answered

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...

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...

8 years ago | 0

Answered

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...

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...

8 years ago | 1

| accepted

Answered

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...

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...

8 years ago | 0

Answered

Simple calculations?

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

Simple calculations?

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

8 years ago | 0

| accepted

Answered

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...

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...

8 years ago | 0

Answered

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})...

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})...

8 years ago | 2

| accepted

Answered

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...

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...

8 years ago | 1

| accepted

Answered

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 ...

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 ...

8 years ago | 2

Answered

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 ...

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 ...

8 years ago | 1

Answered

Matlab to MPG

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

Matlab to MPG

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

8 years ago | 0

Answered

GUI Text box

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

GUI Text box

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

8 years ago | 0

Answered

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...

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...

8 years ago | 2

Answered

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...

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...

8 years ago | 0

Answered

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...

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...

8 years ago | 0

| accepted

Answered

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...

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...

8 years ago | 0

Answered

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...

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...

8 years ago | 0

Answered

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_...

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_...

8 years ago | 0

Answered

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>

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>

8 years ago | 6

| accepted

Answered

Excel reading - xlsread

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

Excel reading - xlsread

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

8 years ago | 1

| accepted

Answered

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. * ...

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. * ...

8 years ago | 9

Answered

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 ...

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 ...

8 years ago | 0

Answered

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>...

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>...

8 years ago | 0

Answered

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...

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...

8 years ago | 0

Answered

GUI Creation

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

GUI Creation

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

8 years ago | 2

| accepted

Answered

copy graphic to Excel

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

copy graphic to Excel

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

8 years ago | 0

Answered

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...

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...

8 years ago | 1

Answered

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(...

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(...

8 years ago | 1

Answered

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...

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...

8 years ago | 1