How to create a heatmap from recorded positions

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Ricardo Duarte
Ricardo Duarte 2021-9-7
评论： Ricardo Duarte 2021-9-8
Dear all,
Im trying to create a distribution map (or heatmap) from a table that represents ships positions (see figure).
Based on the previous figure, I would like to transform that into a heatmap. How can I do it.
Thanks in advance

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Dave B
Dave B 2021-9-8
Ran in:
I'm not sure if you're asking about collapsing the trajectories to a single value per ship, or just displaying a binned version of the scatter? If it's the latter, binscatter (or histogram2) might solve this problem.
x=randn(1000,1);
y=x+randn(1000,1)/3;
nexttile;scatter(x,y,'.');title('scatter')
nexttile;binscatter(x,y);title('binscatter')
nexttile;histogram2(x,y,'DisplayStyle','tile');title('histogram2')
c=colorbar;
c.Label.String='Count';

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