Bar Graph from a table : Error Xdata must be unique
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A B C
0 '0' 2
0 '1' 11
1 '0' 32
1 '1' 33
2 '0' 38
2 '1' 31
3 '0' 47
3 '1' 39
Want to have C on the Y axis, X axis : 0,1,2,3 , bars colored for B : 0,1.
4 个评论
Adam Danz
2022-2-9
As the error message indicates, you have multiple x-values so Matlab doesn't know what to do with it, and neither do we 🙂.
Do you want 2 sets of bar plots?
Do you want to somehow combine the Y data for the same x-data groups?
Something else?
Frederick Awuah-Gyasi
2022-2-9
编辑：Frederick Awuah-Gyasi
2022-2-9
Frederick Awuah-Gyasi
2022-2-9
编辑：Frederick Awuah-Gyasi
2022-2-9
Frederick Awuah-Gyasi
2022-2-9
采纳的回答
For bar, groups are created organizing the data into a matrix. The rows correspond to x, and the columns correspond to each data series. See this example.
That means you will need to do some reorganizing of the data to get it formatted correctly to create a grouped bar chart.
% Set up the problem by recreating the table.
A = [ 0 0 1 1 2 2 3 3]';
B = ['0' '1' '0' '1' '0' '1' '0' '1']';
C = [2 11 32 33 38 31 47 39]';
T = table(A,B,C);
% use sortrows to organize data in an expected format
T = sortrows(T,["B","A"]);
% extract x values, group names
x = unique(T.A);
b = unique(T.B);
% Reshape the data based on the number of unique values in A
CC = reshape(T.C,length(x),[])
% plot
bar(x,CC)
legend(b)
3 个评论
Frederick Awuah-Gyasi
2022-2-9
Adam Danz
2022-2-9
@Frederick Awuah-Gyasi, I'm looking forward to your contributions!
Frederick Awuah-Gyasi
2022-2-9
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