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How do you use roifill if the mask you have specifies all the pixels you want replaced
You could dilate the mask to make it bigger or use the distance transform to identify pixels within _n_ pixels of your mask. ...

más de 13 años hace | 0

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Working with numbers smaller tha 10^-308
You can do this using |vpa()| in the Symbolic Math Toolbox: v = vpa('3.14159^-5000') And for more info: <http://www.m...

más de 13 años hace | 2

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Undefined variable "matlab" or function "matlab.apputil.create" Error with Package App
Seems like a path issue. First try: rehash toolboxcache If that doesn't work, restoredefaultpath;rehash toolboxc...

más de 13 años hace | 0

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Summing with respect to values within variable instead of rows, columns, or equal windows
a=[ 1 0.3 1 0.1 2 0.7 2 0.6 2 0.3 2 0.9 3 0.5 4 0.8 4 0.1 5 0.1 5 0.9 5 0.4] uv = u...

más de 13 años hace | 1

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how can I create a vector with unknown length?
xsorted = sortrows(x(:),-1)

más de 13 años hace | 0

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Matrix of functions of two variables
F = bsxfun(@times,t1,t2) And for more info: doc bsxfun

más de 13 años hace | 0

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Keyboard Shortcut for Function Hints
*ctrl + F1* I remember how excited I was when I discovered that gem...

más de 13 años hace | 3

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Matlab GUI non-tag item supported?
You could remove them from handles in the GUI OpeningFcn. Why is it bad if _handles_ has extra unused fields? These are scal...

más de 13 años hace | 0

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I want to setting my X-axis plot
When I copy your code I get an error. Anyway you can use any either of the following to adjust the axes limits: doc axis ...

más de 13 años hace | 0

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Matlab standalone executable run on computers which don't have matlab installed
For the first part of your question: Do the other computers have the <http://www.mathworks.com/help/releases/R2013a/compiler/...

más de 13 años hace | 0

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why is parfor slower than for?
First, do you have a |matlabpool| open? If no matlabpool is open then the |parfor| loop will not be run in parallel anyway. ...

más de 13 años hace | 4

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Loop multiple plots single figure 3D matrix
figure hold on for ii = 1:6 plot(gjG(11,:,ii)); end hold off

más de 13 años hace | 0

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How do I optimise a nonlinear objective function which doesn't have an analytical expression
The objective function doesn't have to have an analytical expression. Write the function you wish to optimize as a function and...

más de 13 años hace | 1

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mkdir with variable name
See the first example here: <http://www.mathworks.com/matlabcentral/answers/57446> You're close: mkdir(['c:' 'c:\...\...

más de 13 años hace | 1

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Convert daily prices to monthly returns
First, |tomonthly| is a method of a _fints_ object. Thus you first have to create an object of this type: doc fints If ...

más de 13 años hace | 0

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Remove an item in legend
How abotu just calling legend again without the input for the line you don't want: hLine = plot(1:10,1:10,'r-',1:10,10:-1:...

más de 13 años hace | 0

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How to make .m to executable files?
Yes. You can do this using |deploytool| and the <http://www.mathworks.com/help/releases/R2013a/compiler/index.html MATLAB Compi...

más de 13 años hace | 0

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setappdate getappdata GUI - help
"setappdat *e*" vs. "setappdat *a*" ?

más de 13 años hace | 0

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HMM with 41 states error occurs
MATLAB uses 1-based indexing not zero. In order to reference the 39th element in the first column: tr(39,1) Please post...

más de 13 años hace | 0

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elementwise If statement, then apply an equation/function only to the elements that meet the criteria
For this specific example: x = magic(3)-5; idx = sign(x); x(idx==1) = x(idx==1).^2; x(idx==-1) = x(idx==-1).^3; I...

más de 13 años hace | 1

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imfreehand or imrect -- snap to pixels while drawing
You can do this using the |setConstrainedPosition()| method of the object. How are you getting the area for the rectangle? ...

más de 13 años hace | 0

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resampling DEM using imresize in a for loop = cell array?
What is out before the loop starts? You should preallocate it as a cell: out = cell(3,1); for ii = 1:3 out{ii} = i...

más de 13 años hace | 0

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Matlab publish - sections inside loop
This does sound like an ideal task for the <http://www.mathworks.com/help/releases/R2013a/rptgen/index.html MATLAB Report Genera...

más de 13 años hace | 0

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Questions About MENU Function
How about using a GUI with six radio buttons? function choices = simpleRadioGUI hFig = figure('WindowStyle','modal')...

más de 13 años hace | 0

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let small numbers in Matrix be zero
A(A<15) = 0; Use logical indexing.

más de 13 años hace | 5

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How can I extract the largest blob in a binary image
Here's the function I wrote to do this. You can also use the example in the "tips section of the doc for |regionprops| which ex...

más de 13 años hace | 0

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How do I get rid of the window that pops up showing a variables' value when I have passed over it.
In R2012b or greater: Editor Tab -> View -> Enable Datatips while editing (right side) In releases prior to R2012b: ...

más de 13 años hace | 0

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Constantly updated gui question
Use a |timer| to scrape the serial port at fixed time intervals and have this update the _'*Data'_ properties of the lines or ot...

más de 13 años hace | 0

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Create array u(i) that is max of array x(i) and y(i)
x = rand(10,10,10); y = rand(10,10,10); mxy = max(x,y) |max()| works directly on n-dimensional arrays. doc max We...

más de 13 años hace | 0

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How to avoid for loops when generating index arrays?
doc meshgrid doc ndgrid %? :) And of course, depending on your application, two nested |for|-loops or |bsxfun()| might ...

más de 13 años hace | 0