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Add legend for a specific plot

조회 수: 8 (최근 30일)
Tesla
Tesla 2022년 5월 27일
댓글: Bjorn Gustavsson 2022년 5월 27일
I trying to show the legend just for l1, l2 and l3, but when i write legend it show all other legends
how can I show just what i want
here my code
clear;clc
x05 = [0 0.1, 0.2, 0.3, 0.4];
y05 = [0 0.0879, 0.1404, 0.1718, 0.2031];
sdt05 = [0 0.0039, 0.0041, 0.0034, 0.0043];
errorbar(x05,y05,sdt05,'o','MarkerSize',5,...
'MarkerEdgeColor','red','MarkerFaceColor','red', 'Color', 'red')
hold on
f= polyfit(x05,y05,2);
xx = linspace(min(x05), max(x05));
v = polyval(f, xx);
l1= plot(xx,v,'red', ...
'LineWidth',2,...
'MarkerSize',10,...
'MarkerEdgeColor','red',...
'MarkerFaceColor','red', 'DisplayName', 'Rd = 0.5');
hold on
x06= [0 0.1 0.2 0.3 0.4 0.46 0.55];
y06 = [0 0.0849 0.1455 0.1829 0.2202 0.2132 0.1485];
sdt06 = [0 0.0023 0.0035 0.0044 0.0026 0.0123 0.0075];
errorbar(x06,y06,sdt06,'o','MarkerSize',5,...
'MarkerEdgeColor','green','MarkerFaceColor','green', 'Color', 'green')
hold on
f1= polyfit(x06,y06,4);
xx1 = linspace(min(x06), max(x06));
v1 = polyval(f1, xx1);
l2 = plot(xx1,v1,'green', ...
'LineWidth',2,...
'MarkerSize',10,...
'MarkerEdgeColor','green',...
'MarkerFaceColor','green','DisplayName', 'Rd = 0.6');
x064= [0 0.1 0.2 0.3 0.4 0.46 0.55];
y064 = [0 0.0849 0.1465 0.192 0.2101 0.2243 0.1728];
sdt064 = [0 0.0023 0.0019 0.0048 0.0028 0.0037 0.0051];
errorbar(x064,y064,sdt064,'o','MarkerSize',5,...
'MarkerEdgeColor','blue','MarkerFaceColor','blue', 'Color', 'blue')
hold on
f2= polyfit(x064,y064,4);
xx2 = linspace(min(x064), max(x064));
v2 = polyval(f2, xx2);
l3= plot(xx2,v2,'blue', ...
'LineWidth',2,...
'MarkerSize',10,...
'MarkerEdgeColor','blue',...
'MarkerFaceColor','blue','DisplayName', 'Rd = 0.64');
legend()

채택된 답변

Bjorn Gustavsson
Bjorn Gustavsson 2022년 5월 27일
Explicitly use the handles returned from the plotting-functions:
legend([l1(:);l2(:);l3(:)],'text1_1','text1_2','and','so','on','...')
That way you decide what plotted lines et al should be included in the legend.
(Sometime one can plot stuff outside the visible axis and use those handles to include in the legend for even further manual control)
(Once you get to this stage, it might be worthwhile to save away the handles from all plotting-functions, even those you don't use "just yet")
HTH
  댓글 수: 2
Tesla
Tesla 2022년 5월 27일
Thank you very much it works
Bjorn Gustavsson
Bjorn Gustavsson 2022년 5월 27일
You're welcome, happy that it helped.

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