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Alexander Collins


Last seen: ongeveer 2 maanden ago Active since 2019

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Question


Extract runs of values from cell array
I have a cell array containing many empty cells, the occasional isolated value surrounded by empty cells, and a few runs of valu...

3 maanden ago | 1 answer | 0

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answer

Question


Extending a 2D lattice of points
I have a hexagonal grid of points derived from measurement (see figure). I'd like to be able to extrapolate beyond the plotted a...

4 maanden ago | 1 answer | 0

1

answer

Question


Using simple comparison to visualize overlap between two curves results in low overlap values being sorted to the end of the array
As found here: https://uk.mathworks.com/matlabcentral/answers/361760-area-between-two-overlapping-plots I'm using a simple comp...

5 maanden ago | 0 answers | 0

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answers

Question


Correlation coefficient in 3D
I need to calculate the correlation between two 3D volumes. I've tried implementing Pearson's coefficient since it's well recogn...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


How to get XYZ coordinates of all non-zero voxels in a 3D volume?
I have an NxMxP matrix that forms a volume. Programs like ImageJ have a function to save the XY coordinates of any pixels above ...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


How to generate orthographic projection/perspective view of 3D object?
Say I have a disc-shape in 3D (i.e. it has some thickness to it - but we could also reduce it to a 2D circle). I want to gener...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


How to create a grid of evenly spaced ones in a matrix of zeros?
So essentially I want a grid looking something like this: 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0...

bijna 2 jaar ago | 1 answer | 0

1

answer