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How does imwarp interpolate data when using displacement fields?
No, in terms of what I would expect at least, a simple left shift is giving me the right thing (see below). I = imread('camera...

2 years ago | 0

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Any update on lsqcurvefit with gpuArray?
I recently had a conversation with the Mathworks about adding gpuArray support to Optimization Toolbox Solvers. The transcript i...

2 years ago | 0

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Shifting elements and replacing empty places with zeros
The B that you have provided is not what the title of your post describes. I assume you meant the following, A =[3 ,7, 9, 2]; ...

2 years ago | 0

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Is it possible to seal a class constructor method
Constructors are always sealed innately. The child class method that you've created with the same name as the parent constructor...

2 years ago | 1

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Answered
I'm using the online trial version, and I cannot see computer vision tool box; did I miss anything?
The Computer Vision Toolbox is not an app that needs to be run separately within Matlab. Like any toolbox, it provides you with ...

2 years ago | 0

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Answered
Why result of conv and point wise multiplication has different result?
In one case, you are using conv(___'same'). The 'same' flag will throw away some of the resulting points. In the second case, ...

2 years ago | 0

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fmincon for multiple variables
Y = double( (1-y1)+(1-y3)+(y2) ); But I don't see why you are using vpa and other sym operations. I don't think it really incre...

2 years ago | 1

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Answered
Cumsum resulting in cumulative error compared to looping
Is this just a result of the loss of precision as the vector index increases? Yes The error will accumulate more with cumsum(),...

2 years ago | 0

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Avoiding for loop: Ordering and assigning order of Group data
tdata = table(["US";"US";"US";"UK";"UK";"TW";"TW";"TW";"TW"], [1;1;5;1.20000000000000;3;4;5;1;2],'VariableNames',{'name','Loss'}...

2 years ago | 0

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Answered
(par)for k=1:N end; select for or parfor loop without code replication
You can avoid replicating the loop code as follows. numWorkers={}; % or whatever if ~parflag numWorkers={0}; end par...

2 years ago | 2

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penalty value of matlab ga optimization
It is the solution that ga thinks is the global optimum.

3 years ago | 0

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Interpolation between 3D data sets. Neural Networks or Other Methods?
Some of the routine interpolation functions to consider would be: griddedInterpolant, scatteredInterpolant, interp3, griddata,gr...

3 years ago | 0

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Converting the outpur of a fit (e.g. sfit) into a string format, then pasting the text to a Text Area in app desginer
I don't know how I can convert the output of a fit, which in my case comes as the class "sfit", into a text format that can then...

3 years ago | 0

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How to extract sequences from a table?
Another option, using varfun: load FCTable T=FCTable; T.tradeDate=dateshift(FCTable.tradeDate,'start','day') ; out = var...

3 years ago | 0

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How to extract sequences from a table?
Calling your table T, out = splitapply(@(x){x} , T{:,[1:10,12:end]},findgroups(T.tradeDate))

3 years ago | 1

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find element a content in b..
I don't know why you think there should be a 4 in the result. a = [5 20 0 3 5 1 1 10]; b = [3 ...

3 years ago | 0

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Speed up gain by GPU parallel processing
The operations that benefit from GPU acceleration are vectorized matrix operations and commands, e.g., https://www.mathworks.co...

3 years ago | 0

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Problem in Deep Learning training process
If I had to guess (I do have to), it is because numClasses=1 and you only have one label, accidentally of course. This response ...

3 years ago | 1

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Moving window Autocorrelation. One pass algorithm. Speed and Stability concerns.
y=circshift(x,-window_step); w=normalize(ones(1,window_size),'n',1); Ex=cyconv(x,w); Ey=cyconv(y,w); Exy=cyconv(x.*y,w);...

3 years ago | 0

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Side by side boxplots
https://www.mathworks.com/matlabcentral/fileexchange/46545-alternative-box-plot?s_tid=ta_fx_results

3 years ago | 0

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Create a cylindrical mask in a 3D matrix
Coordinates of the center of the two faces of the cylinder. Call this c1,c2 The radius of the cylinder. Call this r The size o...

3 years ago | 0

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how to curve fit a sine wave to some data
One way, assuming you have the Curve Fitting Toolbox: fobj = fit( time, Channels(:,iChan) ,'sin1')

3 years ago | 1

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How to remove inner edge of the target?
load('Edge_logical.mat') imshow( edge(imfill(Edge_S1,'holes')) ,[])

3 years ago | 1

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how find last row<>0
idx = find(~any(a,2),1,'last')-1

3 years ago | 3

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Updating variable inside parfor
The best way is as you first had it: a=1; parfor i = 1: 10 a = a + 1; end There is no way, however, that you can get th...

3 years ago | 0

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How do I input multiple values into Edit Field in matlab app designer ?
You can put any text into an edit field, whether it be a scalar, a vector, or something else entirely. app.EditField=mat2str([1...

3 years ago | 1

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Avoid double validation for constructor arguments that are class properties?
Is it possible to achieve similar behavior as in my first example without copying the validation functions? No. Is there a way...

3 years ago | 0

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How do I detect the approximate radius of a rough, unclear circular object?
If you can find a substantial number of the boundary points of the circle with reasonable accuracy, you can fit a circle to them...

3 years ago | 0

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When assignment is allowed?
The relevant documentation is at, https://www.mathworks.com/help/matlab/ref/subsasgn.html?searchHighlight=subsasgn&s_tid=srchti...

3 years ago | 0

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Answered
Manipulating Data In 3D & 4D matrices based on distinct conditions
I think this is what you want. kernelA=[1/alpha;1;1/alpha]; kernelB=[gamma, beta, gamma]; RA=(R==1 | R==3); RB=(R==0); ...

3 years ago | 0