MATLAB Answers

Plotting - Control Legend

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Cillian Hayde
Cillian Hayde 2021년 2월 16일
답변: Jemima Pulipati 2021년 2월 19일
Hi,
I have data coming in and I am plotting it.
Is there a way to preassign a legend so that the marker face colour is assigned to the condition it represents.
For instance, I would like the graph to be like the picture attached, but the legend to be there at the beginning of the plot and for the descriptions "Item X" to be fixed to the specified marker i.e.
  • Yellow = Item A
  • Magenta = Item D
etc
An example codeblock to test is provided below. It is based on what I have.
clf
MarkerFaceColor{1} = [1 1 0]; % YELLOW MarkerFaceColor is item A
MarkerFaceColor{2} = [1 1 1]; % White MarkerFaceColor is item B
MarkerFaceColor{3} = [0 1 0]; % Green MarkerFaceColor is item C
MarkerFaceColor{4} = [1 0 1]; % Magenta MarkerFaceColor is item D
Black = [0,0,0];
x = 1:1:10;
y = repelem(1,10);
Color = [1 3 4 2 2 3 1 4 3 3];
legend() %? MarkerFaceColor - Item X
for i = 1:1:10
pause(1)
plot(x(i),y(i),"Marker","o","MarkerEdgeColor",Black,"MarkerFaceColor",MarkerFaceColor{Color(i)},"MarkerSize",17)
legend()%? MarkerFaceColor - Item X
ylim([0 2])
hold on
end

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