Plotting with different colored markers
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Rainer
am 27 Nov. 2012
Bearbeitet: Ali
am 29 Okt. 2017
Hi All,
As you know, the plot command gives each line a different color so that the user can distinguish between the each dataset. When you have two lines, you have 2 colors...6 lines, 6 colors etc. Very convenient.
How can I do this but for markers instead? The number of datasets I want to plot is different each time...I might have 2,3,4,5 up to x datasets. Is there a way to represent each set using a different marker (when the number of sets is variable)?
1 Kommentar
Ali
am 29 Okt. 2017
Bearbeitet: Ali
am 29 Okt. 2017
if true
--------------------------------------------------- code start
Input is "Input_Data", two dimension matrix
Marker_Counter=1;
figure6=figure;
Markers = {'+','o','*','x','v','d','^','s','>','<'};
for i=1:10:size(Input_Data,1)
TPR=Input_Data(i:i+9,7);
FPR=Input_Data(i:i+9,8);
plot(FPR,TPR,strcat('-',Markers{Marker_Counter}));
Marker_Counter=Marker_Counter+1;
hold on
end
plot([0.5 1],[0.5 1],'--');
legend('Minpts = 100','Minpts = 200','Minpts = 300','Minpts = 400','Minpts = 500','Minpts = 600','Minpts = 700','Minpts = 800','Minpts = 900','Minpts = 1000','','Location','SouthEast');
xlabel('FPR or (1-Specificity)','FontSize',12,'FontWeight','bold'); ylabel('TPR or Spensitivity)','FontSize',12,'FontWeight','bold');
title('ROC Space');
close(gcf);
-------------------------------------------- code end
end
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Akzeptierte Antwort
Image Analyst
am 27 Nov. 2012
You can use scatter() and give each marker its own color if you want. You can put them on top of a line/curve plot if you want if you call "hold on" in between calls to plot() and scatter().
2 Kommentare
myetceteramail myetceteramail
am 14 Apr. 2017
how to give each marker different colour using scatter
Weitere Antworten (2)
Nilesh Salvi
am 27 Nov. 2012
Express the color to be assigned in plot function as RGB-Value rather than 'Short name'. To get a new color generated for every time plot function is called I assign random RGB value to the color spec. http://goo.gl/hq6q4
for i = 1:N
plot(x,y(i),[rand rand rand]);
end
that should plot N number of 'y' curves of N random shades.
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