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Change dimension of a structure
s.Height=3600; s.Width=3601;

2 years ago | 0

Answered
find the inflection point of a curve 3D (set of nodes) in matlab
You can use csaps to fit a smoothing spline to the points and then fnder to differentiate the curve and observe curvature change...

2 years ago | 0

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Answered
How to put 3D array data into mesh grid and find grid cell index of a cube enclosing a given point?
It would be much simpler and more efficient to skip the meshgrid altogether and use discretize. i=discretize(px,x); j=discret...

2 years ago | 0

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Answered
How to fit polygon to irregular set of points with only vertical and horizontal edges?
You will need to use a Traveling Salesman Problem solver to sort the vertices. There are a number of them on the File Exchange. ...

2 years ago | 1

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Answered
Complex value computed by model function, fitting cannot continue. Try using or tightening upper and lower bounds on coefficients.
fminspleas from this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/10093-fminspleas is helpful for these...

2 years ago | 0

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Answered
How to find norm of a 3 X 1 matrix if it contains components in parametric form?
syms t coupler_parametric=[5163136522924301/2251799813685248,... 2^(1/2)/2 - (8*t)/(t^2 + 1), - (4*(t^2 - 1))/(t^2 + 1) - ...

2 years ago | 1

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Answered
wrong type variable in uitable
"Unrecognized property 'VariableTypes' for class 'matlab.ui.control.Table'." Indeed, there is no such property. Why did you put...

2 years ago | 0

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create a 3D average plan (or normal) from two 3D plans (or normals)
There is no universally recognized concept of an "average plane". One definition you could adopt is the plane obtained by fittin...

2 years ago | 0

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polynomial multiplication not accurate, using conv() vs symbolic
To avoid the numerical instabilities of high order polynomials, don't work with the coefficients of D4_poly^2. Just evaluate D4_...

2 years ago | 0

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Answered
Should I modify x-values for curve fitting with response variable?
Matlab's fitting solvers do not require the x data to be equidistant. I'm not sure why it would be a matter of opinion, though...

2 years ago | 1

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Question

Is there a reason why {'charVector'} is not considered a text scalar for argument validation purposes?
It seems like a software design inconsistency to me that this passes validation, mustBeText({'charVector'}) mustBeScalarOrEmpt...

2 years ago | 2 answers | 4

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Answered
I have the 3D MTF and i want to convert this 3D MTF to the common 2D MTF as in the image attached. I want to plot MTF vs Spatial frequency graph.
Your attachment isn't a 2D MTF. It is a 1D MTF. You must pick a 1D cross-section of your 3D MTF that you'd like to plot and extr...

2 years ago | 0

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Problem with polyfit command (R2015a)
The result from polyfit is correct. I suspect you are simply not using polyval properly to evaluate the fit: x=[1:9] ; y=[5,6,...

2 years ago | 1

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Answered
How to re-generate script from already built workspace
The script, if you saved it is a file somewhere on your computer. We have no way fo knowing where you put it. However, if you re...

2 years ago | 0

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Answered
Improving chose of guesses in my fit
It appears from the plot that you are giving nlinfit the data for all peaks simultaneously. You should not be doing that. Rather...

2 years ago | 1

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Identifying all elements and their nodal coordinates given all possible nodes
Assuming the cube is unrotated, V=[0,0,0;0,0,1;0,1,0;0,1,1;1,0,0;1,0,1;1,1,0;1,1,1]+[5,6,7] %cube vertices vmin=min(V); vma...

2 years ago | 1

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Passing additional minibatchable quantities to a trainnet() loss function
Tech support has told me that the way to do this is to supply N strings in the TargetDataFormats training options parameter. tra...

2 years ago | 0

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Object-Oriented: strange behavior that leads to shared reference
The reason this occurs is documented here. Default property values are only generated once when the classdef is first instantiat...

2 years ago | 0

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Answered
Extract area from elipsoidal/cirle trajectory.
load data ymin=min(y); [xx,yy]=deal(x,y); xx(end+1)=x(end); yy(end+1)=ymin; p=regions(polyshape(xx,yy)); h=arrayfun(@...

2 years ago | 0

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Answered
I want all possible distinct lists of the pairs of the elements that can be made from a vector having j ones, j twos, and j threes where j is an even integer.
This code doesn't seem to do too badly. I can easily run up to j=100. As you can see from the loop limits, I find the number of ...

2 years ago | 1

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Answered
How can I restart the optimization in "Optimize Live Editor"?
Not sure what you mean by "clean"? The widgets in the Live Task must always be populated with something, so if you want to run w...

2 years ago | 0

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how to remove variables of a table with a zeros in it
keep=all(yourTable{:,:},1); yourTable=yourTable(:,keep);

2 years ago | 0

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3D resize image for BIG image size
My another strategy is I can read them separately for all Z and reduce image half in X and Y using "tiffreadVolume" and "imresi...

2 years ago | 0

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How do I put a uitable in a tiledlayout?
If you are going to be inserting uitables, it would be advisable to use UI graphics elements everywhere else too, fig=uifigure...

2 years ago | 1

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How can you update plot data from properties in an object?
Consider animatedline

2 years ago | 0

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Error with Vector Length
The code you've shown produces empty t: t0=0; t1=-10; t2=20; [x,t]=step(t0,t1,t2); x=x',t

2 years ago | 0

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Can I use lsqcurvefit for a multivariable nonlinear regression
Yes, lsqcurvefit can be applied to problems of any dimension.

2 years ago | 0

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How to rotate a hyperbola drawn along with the reference line?
%% Input values D = 250; % mm distance c = 4; % mm/s velocity del = 10; % a constant theta...

2 years ago | 0

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Answered
Circle fit in pointcloud, stl
See the section "Fitting a 2D Shape to 3D Points" in the Examples tab of this FEX submission: https://www.mathworks.com/matlabc...

2 years ago | 0

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How can I rotate a volshow image programatically?
Can I rotate the volume instead of the camera? Yes, you can use the Transformation property.

2 years ago | 1