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Joel Handy


Last seen: 6 mois il y a |  Actif depuis 2019

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How does the mod function compensate for floating point round off?
Answering my own question. I wrapped the mod function and generated c code. if the quotient is within eps * quotient of bieing...

plus de 2 ans il y a | 0

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Question


How does the mod function compensate for floating point round off?
The documentation for the mod function states, "mod attempts to compensate for floating-point round-off effects to produce exact...

plus de 2 ans il y a | 4 réponses | 2

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Question


Simulink Protected Model and coder.cevel()
I'm trying to create a protected model from a Simulink model contained embedded matlab functions using coder.ceval() to pull in ...

presque 3 ans il y a | 1 réponse | 0

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how to plot all the results of for loop in one figure on same axis?
Just move the figure(); command to before the for loop.

plus de 5 ans il y a | 0

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How to flip my image
The are a few problems with your code. First, if you want the image, you dont want to transpose. That will flip and rotate, As...

plus de 5 ans il y a | 1

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How to split an array into smaller unequal-sized arrays dependend on array-column values
Histcounts can be used to pin the data the way you want. [~,~,BIN] = histcounts(mainArray(:,1), 0:10:500) subArray1 = mainArr...

plus de 5 ans il y a | 0

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if statement inside for loop location issues
This is exactly the situation where you want to use logical indexing. https://blogs.mathworks.com/loren/2013/02/20/logical-inde...

plus de 5 ans il y a | 0

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Plotting orientation in 3-D plot using quaternion
Check out this link which explains the quaternion mah required. https://gamedev.stackexchange.com/questions/28395/rotating-vect...

plus de 5 ans il y a | 0

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How can i read multiple values in a string?
I believe a regular expression along these lines is what you are looking for. data = regexp('1º:" H:2T:16799C:7| H:2T:16803C:15...

plus de 5 ans il y a | 0

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Surface fitting for 3D point cloud acquired by photogrammetry
Take a look at griddata and scatteredInterpolant griddata Interpolates scattered data - generally to produce gridded data Vq =...

plus de 5 ans il y a | 2

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Can this be written in a much better way for fast computations?
The code below will do what you are asking without needing a loop. coast=magic(14400); di_max=100; mx=14400; my=14400; [i...

plus de 5 ans il y a | 1

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How to assign numbers
Something like this? table = randi([0 10],10,10); tableMax = max(max(table)); table(table==0) = tableMax+1; % Or Just table...

plus de 5 ans il y a | 0

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How can i do object oriented programming in Simulink?
It sounds like a simple masked subsystem may suit your needs. Its not object oriented programming but you can use it to define ...

plus de 5 ans il y a | 0

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How could I extract the first two columns, and leave the next two and then so on from a matrix
% Set up example data set A = eye(100); A(1,:) = 1:100; numCols = size(A,2); % Answer B = A(:,sort([1:4:numCols 2:4:numCo...

plus de 5 ans il y a | 0

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A simple matrix question
A = [1 2 3 4 5]; B = fliplr(A) % Flip matrix in left/right direction A = [1; 2; 3; 4; 5]; B = flipud(A) ...

plus de 5 ans il y a | 0

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how can i convert the ip address into decimal
ipFields = uint8(str2double(split('192.192.192.2', '.')))'; typecast(fliplr(ipFields), 'uint32') % Explanation dec2hex(192)...

plus de 5 ans il y a | 1

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unique set from file
c = {'!' 'a:' 'l' 't' '@' [] [] '?' 'a:' 'l' 't' '@' 's' 't' '/' 'a' 'b' 'a' 'n' 'd' 'A~'}; for rowIdx = 1:size(c,1) ...

plus de 5 ans il y a | 0

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How to divide a structure into sub-structures based on a condition
I think this is what you are looking for. You will end up with two struture arrays both smaller than the original structure arr...

plus de 5 ans il y a | 0

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What are the toolboxes on my license
Just type "ver" to find out what toolboxes you have ver This question has a pretty thorough description of product activation ...

plus de 5 ans il y a | 0

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Issue with loading datetime from table
There appears to be two issues with your code. The first is that datetime doesn't take a cell array of numbers so you need to c...

plus de 5 ans il y a | 0

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How do I apply unique names to structs created in a for loop?
Does this help at all? I'm not completely sure I understand the nuances of your question, but If I had a folder structure like ...

plus de 5 ans il y a | 0

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Finding a max in a column and making all other elements equal to zero
a= [ 1 3 3; 3 1 2; 2 1 1 ] numRows = size(a,1); maxvals = max(a) a(a~=repmat(max(a),numRows,1)) = 0 numNonZeroInCol = sum(...

plus de 5 ans il y a | 0

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Undefined function or variable 'gurobi_write'. in MATLAB R2019a?
I don't know anything about Gurobi, but I do know that in the past, some programs that tie into Matlab need to be installed afte...

plus de 5 ans il y a | 2

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How to select images from nested folder?
Something like this should work. You will possibly need to add code to appropriately sort your list of images. I've marked whe...

plus de 5 ans il y a | 2

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Change the certain element after comparison of two arrays
B = A == 0;

plus de 5 ans il y a | 0

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How do I add an additional column to a cell array based on existing values in another column?
Obviously replace myCellArray with whatever your array is called. isTwo = cellfun(@(x) x == 2, myCellArray(:,2)); myCellArray(...

plus de 5 ans il y a | 0

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Remove rows based on length of column value
I think this code will do what you want. It will make a vector with the same number of rows as A, with each element being the nu...

plus de 5 ans il y a | 1

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How to plot IMU data (XYZ_AER)?
A quiver plot might help you. it essentially lets you draw vectors in 3D space. https://www.mathworks.com/help/matlab/ref/quiv...

plus de 5 ans il y a | 0

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path(pathdef) does not reset the matlab path
I know the question, "How do I restore the Matlab path to it's state at program start up," has been asked a million times and fo...

plus de 5 ans il y a | 1 réponse | 0

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Translating points and finding correct normal vector
Sounds like what you really want to do is "shrink" your perimiter. Is that accurate? If so, projecting points back along these...

presque 6 ans il y a | 0

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