plotting 2 different graphs

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Karelle Ngwen
Karelle Ngwen 2023-1-30
评论： Karelle Ngwen 2023-2-12
i have 2 matrices and want to plot each individual value on a separate graph. like the first value of the first matrix and that of the second matrix only on one graph, then the second values of both on another graph
  2 个评论
Davide Masiello
Davide Masiello 2023-1-30
Do you mean first row of first matrix vs first row of second matrix etc...?
Rik
Rik 2023-1-30
Have a read here and here. It will greatly improve your chances of getting an answer.
Please post some example data, along with what you tried. I suspect a call to subplot, simple indexing, and two calls to plot will suffice.

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回答（1 个）

Vinayak Choyyan
Vinayak Choyyan 2023-2-8
Ran in:
Hello Karelle,
As per my understanding, you have two matrices, say A and B, of the same size. You would like to plot just one (X,Y) pair on a graph for each pair (A(i), B(i)), where i is the index of element in matrix.
From your question, I am not sure whether you would like to have just one figure with multiple subplots for each value pair or have multiple figures with plots for each value pair. Hence I am providing you with a solution for both these mentioned cases.
  • One figure with multiple subplots, one subplot for each value pair
a=[1,2,3,4,5;6,7,8,9,10];
b=[2,4,6,8,10;12,14,16,18,20];
%a and b are 2 matrix of same size
sa=size(a);%get the size of a (which is same as b)
for i=1:sa(1)
for j=1:sa(2)
pos=sa(2)*(i-1)+j;%position of current plot in subplot
subplot(sa(1),sa(2),pos);%select the position of subplot among all the subplots
plot(a(i,j),b(i,j),'*');
end
end
  • Many figures, one figure for each value pair
a=[1,2,3,4,5;6,7,8,9,10];
b=[2,4,6,8,10;12,14,16,18,20];
%a and b are 2 matrix of same size
sa=size(a);%get the size of a (which is same as b)
for i=1:sa(1)
for j=1:sa(2)
figure;
plot(a(i,j),b(i,j),'*');
end
end
I hope this helps resolve the issue you were facing.
Please refer to the following documentation to read more about 'plot()' and 'subplot()' functions:

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