How to find number of counts for atoms (each minor grid) within XY grid?

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Ankit Chauhan
Ankit Chauhan 2023-1-6
评论： Star Strider 2023-1-10
Hello everyone, I have ID, type and XYZ coordinates of atoms within a box (as attached 1_aniline_epoxy_inftrated_ID_type_XYZ_data.txt data and image). Box is transformed in to number of XY grids or rectangle. I want to count number of atoms belong to each rectangle and want to plot number of counts into XY plot. Data and figure is attached.
Thank you,
Ankit

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Star Strider
Star Strider 2023-1-6
Ran in:
I am not certain what you want.
The histogram2 function is one option —
T1 = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1254562/1_aniline_epoxy_inftrated_ID_type_XYZ_data.txt');
T1.Properties.VariableNames = {'ID','Type','X','Y','Z'}
T1 = 894×5 table
ID Type X Y Z ____ ____ ______ ______ ______ 16 1 14.034 26.858 38.603 17 1 12.782 27.304 38.207 18 6 12.464 27.735 36.763 19 4 15.1 27.81 38.712 20 3 12.451 28.809 36.614 21 3 14.629 28.605 36.936 22 7 15.016 29.049 37.842 24 3 13.163 27.348 36.031 26 3 11.472 27.435 36.445 27 3 10.355 28.576 38.771 29 3 14.2 29.576 38.323 1205 1 14.222 25.673 39.358 1206 1 11.653 27.171 39.178 1207 7 15.489 24.793 39.285 1208 3 15.254 23.731 39.318 1209 4 10.535 27.833 39.429
figure
scatter3(T1.X, T1.Y, T1.Z, 15, T1.Type, 'filled')
xlabel('X')
ylabel('Y')
zlabel('Z')
title('3D Scatterplot Of Data')
axis('equal')
colormap(turbo(numel(unique(T1.Type))))
title('3D Scatterplot Of Data')
figure
hh3 = histogram2(T1.X, T1.Y, 10);
hh3.FaceColor = 'flat';
colormap(turbo)
xlabel('X')
ylabel('Y')
zlabel('Z')
title('2D Histogram Of Data')
gethh3 = get(hh3); % Handle To Function
% Vals = hh3.Values % Same Matrix As 'Counts' Here
Counts = hh3.BinCounts
Counts = 10×10
1 6 4 4 7 3 2 2 1 3 2 17 18 9 7 11 17 15 11 9 1 10 10 11 7 17 14 17 10 13 4 12 15 5 10 12 14 11 5 6 1 19 10 8 9 10 15 14 8 9 5 17 9 13 9 14 18 20 8 5 5 6 11 9 11 10 13 13 17 11 1 5 12 1 2 6 10 12 10 13 3 11 8 7 10 15 12 14 10 4 1 7 3 7 6 8 3 8 3 2
.

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