How To Modify Color of Legend Markers?

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Maeve O'Brien
Maeve O'Brien 2020-2-7
评论： Maeve O'Brien 2020-2-7
I'm currently attempting to create figures from .csv files, however the resulting figures all appear to have duplicates present in the legend. I'm unsure of how to correct this issue, and have used multiple 'legend' commands to no avail. Any and all advice would be very appreciated. The code I've been using can be found below:
data_raw1=csvread('thru-plane (results) - Test48_Left_Reslice.csv',2,3);
data_raw2=csvread('thru-plane (results) - Test51_Left_Reslice.csv',2,3);
data_raw3=csvread('thru-plane (results) - Test54_Left_Reslice.csv',2,3);
% Uncomment data_raw4 read .csv file
%data_raw4=csvread('thru-plane (results) - Test56_Left_Reslice.csv',2,3);
p1=plot(data_raw1,'c');
hold on
p2=plot(data_raw2,'b');
p3=plot(data_raw3,'r');
% Uncomment to to plot
%p4=plot(data_raw4,'k');
%xlim([0 500]);
ylim([0 50]);
xlabel('Through-Thickness [\mum]');
ylabel('Oxygen Content');
hold off
legend

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回答（1 个）

Walter Roberson
Walter Roberson 2020-2-7
p1=plot(data_raw1,'c');
Your data_raw1 has multiple columns. plot() will produce one line for each column.
Solution:
legend([p1(1), p2(1), p3(3)], {'48_Left', '51_Left', '54_Left'})
Note: if you have enough lines in the plot then it would start using different line styles, so you might want to specify the line styles yourself, such as '-c'
  1 个评论
Maeve O'Brien
Maeve O'Brien 2020-2-7
Hi Walter,
Thank you so much for the quick reply! I'll make that change right away.

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