Problem 2029. Convert vector datasets to plot with imagesc instead of scatter

  • Created by Ted

For large datasets this allows much faster plotting.

An irregular 2D spatial sampling is provided in x and y vectors with a data point to plot in vector d. A bin size is also provded in vector b=[dx,dy]

Return a 2D matrix M with minimal empty cells with the correct spatial relationship of d and last value only retained in the event of duplicates.


 b = [6,9];
 x = rand(3333,1)*100*b(1)+1500;
 y = rand(3333,1)*100*b(2)+50000;
 d = sind(sqrt(x.^2+y.^2))./sqrt(x.^2+y.^2);

Return G, a 2D matrix with d binned in rows and columns

Solution Stats

16.67% Correct | 83.33% Incorrect
Last solution submitted on Dec 03, 2013

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