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Matt J


Last seen: Today Active since 2009

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Professional Interests: medical image processing, optimization algorithms PLEASE NOTE: I do not read email sent through my author page. Please post questions about FEX submissions in their respective Comments section.

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MATLAB Answers

281 Questions
12 081 Answers

File Exchange

38 Files

Cody

5 Problems
33 Solutions

Highlights

3 Highlights

RANK
6
of 298 350

REPUTATION
31 508

CONTRIBUTIONS
281 Questions
12 081 Answers

ANSWER ACCEPTANCE
78.65%

VOTES RECEIVED
4 175

RANK
204 of 20 571

REPUTATION
6 646

AVERAGE RATING
4.90

CONTRIBUTIONS
38 Files

DOWNLOADS
208

ALL TIME DOWNLOADS
55851

RANK
9 671
of 160 925

CONTRIBUTIONS
5 Problems
33 Solutions

SCORE
598

NUMBER OF BADGES
7

CONTRIBUTIONS
0 Posts

CONTRIBUTIONS
0 Public Channels

AVERAGE RATING

CONTRIBUTIONS
3 Highlights

AVERAGE NO. OF LIKES
2

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Submitted


Find vertices in image of convex polygon
Estimates the corner points of a pixelated convex polygon having a known number of vertices.

11 dagar ago | 6 downloads |

5.0 / 5
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Submitted


N-dimensional sparse arrays
Creates an N-dimensional sparse array object, for arbitrary N.

3 månader ago | 24 downloads |

4.8 / 5

Submitted


gaussfitn
Fit N-dimensional scattered points with Gaussian+constant

3 månader ago | 15 downloads |

5.0 / 5
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Submitted


Further tools for analyzing objects in N-dimensional images
A collection of tools to supplement bwpropfilt, bwareaopen, and the like.

4 månader ago | 3 downloads |

5.0 / 5

Submitted


Constrained minimum L1-norm solutions of linear equations
Finds least L1-norm solutions to linear equations C*x=d subject to linear and/or integer constraints.

8 månader ago | 7 downloads |

5.0 / 5

Submitted


Array Concatenation with Implicit Expansion
Versions of cat(), horzcat(), and vertcat() that support implicit expansion

8 månader ago | 1 download |

5.0 / 5

Submitted


spatialgraph2D
Creates a graph object with 2D spatial locations associated with the nodes

12 månader ago | 3 downloads |

4.8 / 5
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Submitted


Block transposition, permutation, and reshaping of arrays
Analogues for transpose(), reshape(), and permute() but where sub-blocks of the array are treated as scalar elements.

ungefär ett år ago | 5 downloads |

5.0 / 5

Submitted


ezplane
Plot an arbitrary 3D plane given its equation.

ungefär ett år ago | 1 download |

0.0 / 5

Submitted


Grids of tiled chart layouts
A tool for simplifying the creation of nested tiled layouts

ungefär ett år ago | 2 downloads |

0.0 / 5

Submitted


Object-oriented tools to fit/plot conics and quadrics
A tool set for fitting and/or plotting various conics and quadric surfaces, e.g., ellipses, cylinders, spheres, planes, cones, a...

ungefär ett år ago | 36 downloads |

5.0 / 5
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Submitted


Tools for Processing Consecutive Repetitions in Vectors
A set of functions for labeling and manipulating groups of consecutively repeating elements in a vector.

mer än 2 år ago | 1 download |

5.0 / 5

Submitted


outputnames
Get a list of the output argument names of the currently executing function.

mer än 2 år ago | 1 download |

0.0 / 5

Submitted


Absolute Orientation - Horn's method
Solves weighted absolute orientation problem using Horn's quaternion-based method.

nästan 3 år ago | 10 downloads |

4.9 / 5

Submitted


Convert linear functions to matrix form
Obtaining the matrix representing a given linear function

ungefär 3 år ago | 4 downloads |

0.0 / 5

Submitted


Intersections of multiple 2D lines or line segments
Compute the intersection of a reference line (or line segment) with a polyshape boundary or with a batch of other line segments....

ungefär 3 år ago | 3 downloads |

4.0 / 5
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Submitted


PROB2MATRICES: A selective version of prob2struct
Obtains matrices for select parts of an optimization problem from problem-based description.

nästan 4 år ago | 3 downloads |

0.0 / 5

Submitted


3D Rotation about Shifted Axis
Computes/applies rotation about arbitrary 3D line.

ungefär 4 år ago | 10 downloads |

5.0 / 5

Submitted


Analyze N-dimensional Convex Polyhedra
Find vertex or (in)equality forms of convex polyhedra in R^n (for n not super large). Also, compute their intersections and unio...

ungefär 4 år ago | 21 downloads |

5.0 / 5
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Submitted


whosGPU
Provides WHOS-like output for gpuArray variables in the current workspace.

ungefär 4 år ago | 1 download |

0.0 / 5

Submitted


Extract linearly independent subset of matrix columns
Loop-free code routine to find a maximal subset of linearly independent columns in a matrix

mer än 4 år ago | 11 downloads |

5.0 / 5

Submitted


ndgridVecs
A more efficient substitute for ndgrid meant to help capitalize on implicit expansion.

ungefär 5 år ago | 1 download |

0.0 / 5

Submitted


Structure fields to variables
Code writing tool for importing/exporting workspace variables to or from a struct.

mer än 5 år ago | 5 downloads |

4.8 / 5

Submitted


Separable Block-wise Operations
Efficiently performs separable operations (e.g., sum, mean,prod, min, max,...) on array sub-blocks

ungefär 6 år ago | 4 downloads |

5.0 / 5

Submitted


Quadratic minimization with norm constraint
Minimizes convex or non-convex quadratics subject to (in)equality constraint on norm(x)

mer än 7 år ago | 1 download |

4.5 / 5

Submitted


MAT2TILES: divide array into equal-sized sub-arrays
Splits an array of any dimension into cell array of equal sized chunks.

mer än 7 år ago | 11 downloads |

4.5 / 5

Submitted


IMRESIZEN: resize an N-dimensional array
An N-dimensional analog of the imresize() function

mer än 7 år ago | 2 downloads |

5.0 / 5

Submitted


Regular Control Point Interpolation Matrix with Boundary Conditions
Creates Toeplitz-like matrices representing interpolation operations with edge conditions.

ungefär 9 år ago | 5 downloads |

5.0 / 5
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Submitted


Memory-efficient anonymous functions
Obtain anonymous function clean of non-essential workspace variables

mer än 9 år ago | 1 download |

0.0 / 5

Submitted


Zero-Based Indexable Arrays (OOP Exercise)
Creates arrays whose indexing starts from zero instead of one.

mer än 13 år ago | 1 download |

5.0 / 5

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