Matlab Contour Plot of 37380x2 array data points

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Kelly McGuire 2024-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/2090341-matlab-contour-plot-of-37380x2-array-data-points

评论： Kelly McGuire 2024-3-6

ROGRMSDData.xlsx

I have an array of data points, where the first column are RMSD values and represent the x-axis and the second column are RoG values and represent the y-axis. I would like to make a contour plot of RoG (y-axis) vs RMSD (x-axis). I found and tried other code, but I need the color bar to represent the RMSD range instead of the data point density. The Code is shown below. The image shows my plot on the left, and I am trying to make a similar plot to the one on the right. The color bar gives the range of the RMSD values. The y-axis also only shows the minimum to maximum range. I don't need to change the color scheme.

ROGRMSDData is the attached array.

[N,Xedges,Yedges] = histcounts2(ROGRMSDData(:,1), ROGRMSDData(:,2), 50);
% or use [N,Xedges,Yedges] = histcounts2(X,Y,Xedges,Yedges);
% Compute bin centers
Xcnt = Xedges(2:end) - abs(diff(Xedges(1:2))/2); 
Ycnt = Yedges(2:end) - abs(diff(Yedges(1:2))/2); 
figure()
contourf(Xcnt,Ycnt, N)
% colorbar
cb = colorbar(); 