Plot several lines on the same plot for the same unique category
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Hello,
i have a table which consists of the following data
Category Frequency Modulus
1 5 20
1 2 23
1 8 50
1 1 13
2 5 30
2 2 33
2 8 60
2 1 24
i want to plot Frequency vs. Modulus for each unique category (here i only showed 1 and 2 but i have more than that). also as you can see, my frequency data are not in sequence (they are shuffled 5,2,8,1,...). i want to produce a graph like the shown below (here, each line represents a different category). my frequqncy range is between 1 to 20.
i tried to produce a line for only one category, however what i got is shown in the other graph, i was not able to plot it in a sequential order.
采纳的回答
Let T be your data of size m*3.
C = T(:,1) ; % category
F = T(:,2) ; % Frequency
M = T(:,3) ; % Modulus
figure
hold on
for i = 1:length(unique(C))
Fi = F(C==i) ;
Mi = M(C==i) ;
[Fi,id] = sort(Fi) ;
Mi = Mi(id)
plot(Fi,Mi,'.-')
end
4 个评论
Mohammad Aljarrah
2020-3-4
thank you very much for your quick response. your code did solve the first problem (separating them into different categories), however my data is still not in sequential order as you can see. can you please help with this? appreciate it :)
KSSV
2020-3-4
Edited the answer.
Mohammad Aljarrah
2020-3-4
darova
2020-3-4
try also
C = T(:,1) ; % category
F = T(:,2) ; % Frequency
M = T(:,3) ; % Modulus
N = 4; % number of points
FF = reshape(F,N,[]);
MM = reshape(M,N,[]);
plot(FF,MM)
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