Convert vector datasets to plot with imagesc instead of scatter - MATLAB Cody - MATLAB Central

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

Difficulty:
(83)
Rate
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.
Example
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
Solve

Solution Stats

20.0% Correct | 80.0% Incorrect
Last Solution submitted on Jun 03, 2024

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers5

Suggested Problems

More from this Author11

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!