Help with Legend for Plot

2022 11 12
3 个回答
回答已采纳
更新时间：2022 11 12
9 次查看（30 天）

0 个投票

I am struggling to clean up the legend for the final figure. I only want to label y3T1, y4T1, y5T1, y6T1, and y7T1. I've tried using the plot editor but can't seem to figure out how to only have those specific data points only.
Attached is the main script (T1) the curve fits (T1Fit) and the raw data i'm working with.
Appreciate any help!

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 采纳的回答

Alex
Alex 2022-11-12

0 个投票

Solved it! I had to call the certain indices for p1-p5 in the legend.
legend([p1(1),p2(1),p3(1),p4(1),p5(1)], 'CuSO4-0.625%', 'CuSO4-1.25%', 'CuSO4-2.5%', 'CuSO4-5%','CuSO4-10%')

更多回答（2 个）

VBBV
VBBV 2022-11-12
Ran in:

0 个投票

Ran in:
clc; % Clear the command window.
close all;
filename = 'amplitudeT1cleaned.xlsx';
data = readtable(filename);
Warning: Column headers from the file were modified to make them valid MATLAB identifiers before creating variable names for the table. The original column headers are saved in the VariableDescriptions property.
Set 'VariableNamingRule' to 'preserve' to use the original column headers as table variable names.
VN = data.Properties.VariableNames
VN = 1×9 cell array
{'MineralOil'} {'Glycerol'} {'CuSO40_625_'} {'CuSO41_25_'} {'CuSO42_5_'} {'CuSO45_'} {'CuSO410_'} {'tau'} {'t0_625'}
tau = table2array(data(:,8))/1000;
y= table2array(data);
y1= table2array(data(:,1));
y2= table2array(data(:,2));
y3T1= table2array(data(:,3));
y4T1= table2array(data(:,4));
y5T1= table2array(data(:,5));
y6T1= table2array(data(:,6));
y7T1= table2array(data(:,7));
t1 = table2array(data(:,9));
figure(1)
plot(t1,y3T1,t1,y4T1,t1,y5T1,t1,y6T1,t1,y7T1)
grid
xlabel('Time')
ylabel('Amplitude')
legend(VN{3:7}, 'Location', 'best')
Warning: Error updating Legend.

String scalar or character vector must have valid interpreter syntax:
CuSO410_
err = std(y3T1)/length(y3T1)
err = 0.0492
err1 = std(y4T1)/length(y4T1)
err1 = 0.0421
err2 = std(y5T1)/length(y5T1)
err2 = 0.0328
err3 = std(y6T1)/length(y6T1)
err3 = 0.0159
err4 = std(y7T1)/length(y7T1)
err4 = 0.0136
Walter Roberson
Walter Roberson 2022-11-12

0 个投票

errarbar(t1,y7T1,err4)
That should be errorbar() not errarbar()
legend('CuSO4-0.625%', 'CuSO4-1.25%', 'CuSO4-2.5%', 'CuSO4-5%','CuSO4-10%')
change that to
legend([p1;p2;p3;p4;p5], {'CuSO4-0.625%', 'CuSO4-1.25%', 'CuSO4-2.5%', 'CuSO4-5%','CuSO4-10%'})

3 个评论
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Alex
Alex 2022-11-12
Just tried that this is the figure it gave me, it is labeling the curves as the sample
Walter Roberson
Walter Roberson 2022-11-12
Reminder that people typically cannot examine fig files from their phone, so images are typically more useful than fig files
Alex
Alex 2022-11-12
Sorry I didn't Think about that!

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Alex
Alex
2022-11-12

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Alex
Alex
2022-11-12

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