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Andy


Active since 2009

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

mer än 9 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år ago | 0

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

mer än 13 år 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...

mer än 13 år 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})...

mer än 13 år 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...

mer än 13 år 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 ...

mer än 13 år ago | 4

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 ...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år ago | 0

| accepted

Answered
[DEPRECATED] 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...

mer än 13 år 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...

mer än 13 år 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_...

mer än 13 år 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>

mer än 13 år 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...

mer än 13 år ago | 1

| accepted

Answered
TUTORIAL: how to ask a question (on Answers) and get a fast answer
Do: Check the FAQs. https://www.mathworks.com/matlabcentral/answers/faqs?s_tid=gn_mlc_ans_faqs https://matlab.fandom....

mer än 13 år ago | 10

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 ...

mer än 13 år 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>...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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...

mer än 13 år 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(...

mer än 13 år 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...

mer än 13 år ago | 1

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