Gelöst

Get ranking of a combination
I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

fast 13 Jahre vor

Problem

Get ranking of a combination
I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

fast 13 Jahre vor | 1 | 55 Lösungsvorschläge

Beantwortet
How do I delete empty array among populated arrays?
You are probably better off not having variables named like this in the first place. <http://www.mathworks.com/matlabcentral/...

fast 13 Jahre vor | 1

Beantwortet
How to avoid for loops using compact array notation?
I find it very unlikely that this will be the bottleneck in your code. Have your run this through the profiler to confirm that ...

fast 13 Jahre vor | 0

Beantwortet
How to have random groups( of 2 elements) from a squared matrix?
There are 24 four connected pairs. Three per row, three per column. I would generate a random integer from 1-numel(A) I wou...

etwa 13 Jahre vor | 0

Beantwortet
Recognizing shapes in (binary) matrix
If you KNOW that you are either dealing with a line or a circle, then could you look at the MajorAxisLength and MinorAxisLength ...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
find subset of a set
>> all(ismember([1 3], [2 4])) ans = 0 >> all(ismember([1 3], [1 3 2 4])) ans = ...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
Allow Question Markup Capability with fewer Reputation Points
You have those privileges now on your own posts. That is a list of suggested things to do to OTHER people's posts when you ge...

etwa 13 Jahre vor | 0

Beantwortet
Sign switching in a sequence
Look at the diff command. It will subtract each element from the next. Look at the sign of that calculation and you will be al...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
How to make a mean image out of several images converted into a density map
The image you are dealing with is really just a matrix of numbers where the numbers represent the density. If every image is th...

etwa 13 Jahre vor | 0

Beantwortet
Efficient implementation of a functions with vector arguments
Do not worry about efficiency until you know it is a problem. I think you might be surprised where the bottlenecks in your code...

mehr als 13 Jahre vor | 0

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Beantwortet
how to customize a colorbar?
Colorbar should not have any bearing on a line plot. Maybe you mean the 'colororder' property of the axes: >> get(gca, 'colo...

mehr als 13 Jahre vor | 0

Beantwortet
Use of timer: what's the code to indicate that its period of time is expired?
It is not clear what you are asing, but this is a primer on timers. <http://blogs.mathworks.com/videos/2008/05/05/advanced-ma...

mehr als 13 Jahre vor | 0

Beantwortet
Creating a solid/surface of revolution from discrete data?
The profile you give represents the radius. Set it to whatever you want. Then you can translate the surface by adding a consta...

mehr als 13 Jahre vor | 0

Beantwortet
How to set background as black without appearing in colorbar?
Axes have color. You could set the color of the axes. Then you can put NaN in the image on any pixel you want to be 'empty'.

mehr als 13 Jahre vor | 0

Beantwortet
GUI AXES Object detecting
You are looking to set callbacks on the lines. This is similar: <http://blogs.mathworks.com/videos/2008/01/28/practical-ex...

mehr als 13 Jahre vor | 0

Beantwortet
Check each pixel for a specific color
MATLAB uses ones based indexing. There is no 0,0 element. Try starting at 1,1. A better way is like this: a = [11 22 3...

mehr als 13 Jahre vor | 0

Beantwortet
Rock, Paper, Scissors GUI?
<http://blogs.mathworks.com/videos/2013/02/06/introduction-to-gui-building-with-guide-in-matlab/ Intro to GUIDE Video> Check ...

mehr als 13 Jahre vor | 0

Beantwortet
A problem drawing a graph in matlab
Why not use the built in hist command in MATLAB to get a histogram?

mehr als 13 Jahre vor | 0

Beantwortet
Problem changing FaceColor in contourm
It has been my experience that when you see a problem where the code works in debug mode, but not when run all at once, you need...

mehr als 13 Jahre vor | 0

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Beantwortet
Merge imagesc and plot into same figure
i = magic(10) imagesc(i) imagesc(10:10:100, 10:10:100,i) When you call imagesc, if you do not give an X and Y vect...

mehr als 13 Jahre vor | 0

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Beantwortet
How to get the pixel values of an image in binary form?
>> <http://www.mathworks.com/help/releases/R2013a/matlab/ref/dec2bin.html doc dec2bin> This will give you the binary as strin...

mehr als 13 Jahre vor | 0

Beantwortet
Multi window Gui problem
<http://blogs.mathworks.com/videos/2011/11/23/passing-data-between-guide-callbacks-without-globals-in-matlab/ Passing data betwe...

mehr als 13 Jahre vor | 1

Beantwortet
how to implement loops in a sturcture
There is a lot of indexing and confusion going on here. I recommend breaking down the problem into smaller, testable pieces. ...

mehr als 13 Jahre vor | 0

Beantwortet
Plot figures in property editor mode automatically
http://www.mathworks.com/help/releases/R2012b/matlab/ref/plottools.html These tools will 'remember' how they were configured ...

mehr als 13 Jahre vor | 0

Beantwortet
how do i retrieve the values from a plotted graph?
>> h = plot(rand(1,3)); >> get(h,'ydata') ans = 0.534064127370726 0.089950678770581 0.11170574419320...

mehr als 13 Jahre vor | 0

Beantwortet
How to relate or understand this code with math formula?
It looks like it is taking the delta between every vertex in the list and a specific vertex (a or b). It is then squaring t...

mehr als 13 Jahre vor | 0

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Gelöst

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

mehr als 13 Jahre vor

Beantwortet
how can i display the image in GUI??
<http://blogs.mathworks.com/pick/2007/10/16/matlab-basics-setting-a-background-image-for-a-gui/ Video on setting an image in a G...

mehr als 13 Jahre vor | 0

Beantwortet
What is status for?
To let you know the status, or output of the function. It varies based on each function. Read the doc for each function for de...

mehr als 13 Jahre vor | 0