Answered
can you remove complex values from a plot
xreal = real(x) *More* x = [3+0i,5+1i,4+2i,1+0i] x(~imag(x))

11 years ago | 1

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Answered
Setting default values for plots in Matlab 2014b (OS X 10.10)
Probably need proper capitalization. This works fine for me: set(groot,'DefaultLineLineWidth',2.5) plot(1:10)

11 years ago | 0

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answer this questions please?
[1] is greek to me but [2] and [3] are fairly straight forward in MuPad. That's how I'd get started: >>mupad It even gi...

11 years ago | 0

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Is it possible to solve linear system of equations with parallel computing?
It sounds like you have multiple systems to solve, so I would suggest parallelizing over systems of equations. If you can provi...

11 years ago | 0

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Load and Append Data files
Rather than loading directly with load filename which just creates some variables magically (we use the term "poofing"),...

11 years ago | 0

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I need the code for Contourlet transform to find contours in images
I don't know about contourlets but how about: doc contourc doc activecontour ?

11 years ago | 0

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Error using mtimes Inner matrix dimensions must agree
You are calling * for multiplication which means it's trying to do a matrix multiply. In order to do an elementwise multiple, u...

11 years ago | 0

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Answered
Unnest cell array with nested cells to a cell array
% Sample Data C = repmat({num2cell(1:11,1)},100,1); % Unpacked C2 = vertcat(C{:}) Unpack ( {:} ) it and use <http:...

11 years ago | 9

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Answered
rotating contourf in r2014b
What do you mean by rotate? >>rotate3d on Still works. In R2014b, contour is no longer a collection of patches but ...

11 years ago | 0

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Finding slope and y intercept
Have you tried the Curve Fitting App (Curve Fitting Toolbox, req'd) >>cftool

11 years ago | 0

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Answered
How can I return a vector sorting from least to greatest without using the "sort" command?
One of the guys we play cards with sorts this way. Makes for long games but works for a small number of cards v = [4 2 7 4...

11 years ago | 0

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Change in up arrow command history functionality with release 2014a
These are settings you can change. Here's mine which is the pre14a settings: <</matlabcentral/answers/uploaded_files/195...

11 years ago | 6

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Answered
How to disable automaticlly showing new plot
Rather than plotting a new on each iteration, update the "XData" and "YData" of the already existing plot: <http://www.mathwo...

11 years ago | 0

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Matlab serial command to read binary data
You might be interested in doing this with the support package directly rather than using the serial port yourself <http://ww...

11 years ago | 0

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Tortuosity of blood vessels
<http://www.mathworks.com/videos/medical-image-processing-with-matlab-81890.html> The second example might interest you.

11 years ago | 0

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Answered
Adding two row arrays that are different lengths
The first one: x = [1 2 3 4 5] y = [1 2 3] z = x+padarray(y,[0, numel(x)-numel(y)],0,'pre') The second: x = 2...

11 years ago | 1

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rotating N-D matrices
Use a |for|-loop over the pages and |imrotate| Something like: X = your_original_2d_image Xrot = zeros([size(X) 24],'...

11 years ago | 0

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Answered
Problem while running SIMULINK on Raspbery Pi B+using Matlab 2014a
Sounds like a path issue: which Simulink.sta.FeatureControl.getFeature Should return something like _C:\Program Fil...

11 years ago | 1

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Answered
How to show a colorbar of a certain range?
In R2014b, this is now possible by setting the limits of the colorbar directly: surf(peaks) h = colorbar h.Limits = [-2 2...

11 years ago | 5

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Preallocating zeros in cell array. and Which one is faster? 3D matrix, cell or structure data?
If each matrix (cell element) is the same size, then you're best off making a 3d matrix 16x3xp where p is the number ce...

11 years ago | 0

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MEX usage of mldivide() produces incorrect/different results
The results are expected. If we look at the difference between F and Fmex it’s 2*eps(F) eps(max(F(:))) ans = 4.440...

11 years ago | 1

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Answered
Barweb in 2014b doesn't work any more
It looks like there are a few things in the legend call that need to change. The legend is no longer an axes so that is no long...

11 years ago | 0

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How do import just the numerical data into MATLAB
Have you used the import tool which will strip off consistent units for you? <</matlabcentral/answers/uploaded_files/1954...

11 years ago | 0

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diary, how to create a new one
Pass |diary| a _filename_ <http://www.mathworks.com/help/releases/R2014b/matlab/ref/diary.html>

11 years ago | 0

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Is polyarea command related to fill comand?
Polyarea will calculate the area of the polygon from the vertices. Fill is probably doing a little bit more interpolation, but ...

11 years ago | 1

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Answered
Triangulate a non-convex point set
As of MATLAB R2014b, there is now a 2d and 3d |alphaShape| tool built into MATLAB. <http://www.mathworks.com/help/releases/R...

11 years ago | 0

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Simple legend function no longer works in R2014B
Sounds like a shadowed file. What is the full text of the error message? Run the following: dbstop if error This wil...

11 years ago | 1

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Answered
mean of matrix elements
B = mean(reshape(x,10,[]))' Where x is your original column vector and B is the mean of every 10x1 chunk

11 years ago | 2

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Answered
Is it actually possible to use datetick?
With datetimes, if you plot them it takes care of datetick for you: plot(t) It's a new feature in 14b and it will update...

11 years ago | 0

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Answered
finding minimum value of certain row of matrix with condition
Replace the zeros with Infs and take the min: r2 = r; r2(r2==0) = inf; min(r2,[],2)

11 years ago | 0