MATLAB Answers

Avoid lower case in legend by plotting legend with 'DisplayName'

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Nik Rocky
Nik Rocky on 3 Jul 2020
Commented: Nik Rocky on 6 Jul 2020
Hello,
I have again a similar Problem, but in this case I can't separate legend, and : 'Interpreter','none' is here also not working. How can I print names like 001_M1_Distance_0.5m_AKG_C1000S_F1_MS1 without undercases?
label1 = extractBefore({i(j).name}, ".mat");
label1 = extractAfter(label1, "_");
...........
if any(M1)
plot(M1(:,2),M1(:,1),'-o','DisplayName',label1{1});
hold on
end
if any(M2)
plot(M2(:,2),M2(:,1),'-o','DisplayName',label2{1});
hold on
end
if any(M3)
plot(M3(:,2),M3(:,1),'-o','DisplayName',label3{1});
hold on
end
if any(M4)
plot(M4(:,2),M4(:,1),'-o','DisplayName',label4{1});
hold on
end
Thanks!

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Accepted Answer

Image Analyst
Image Analyst on 3 Jul 2020
Use the 'Interpreter', 'none' option in legend():
% Read headers
plot(1:10);
hold on
plot(4:14);
legend('plot_1', 'plot_2', 'Interpreter', 'none', 'Location', 'Northwest');

  6 Comments

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Nik Rocky
Nik Rocky on 4 Jul 2020
Wow, Steven Lord and Image Analyst — it works now, thank you very much! I think i had some wrong line inside (it's a big code), so now I make a completely new part and its works! Your help is amazing, you are amazing! =)
Maybe additional question (to avoid opening net topic), that is easy for you, I think. You see, I make 4 different cases with plot.
Actually I have multiple files with names:
003_M1_Distance_0.5m_AKG_C1000S_F1_MS1.mat
003_M1_Distance_2m_AKG_C1000S_F1_MS1.mat
001_M1_Distance_0.5m_AKG_C1000S_F1_MS1.mat
003_M1_Distance_0.5m_SONY_PCM_D50_F1_MS1.mat
001_M1_Distance_2m_AKG_C1000S_F1_MS1.mat
003_M1_Distance_2m_AKG_C1000S_F1_MS1.mat
001_M1_Distance_2m_SONY_PCM_D50_F1_MS1.mat
003_M1_Distance_2m_SONY_PCM_D50_F1_MS1.mat
003_M1_Distance_0.5m_SONY_PCM_D50_F1_MS1.mat
002_M1_Distance_2m_SONY_PCM_D50_F1_MS1.mat
003_M1_Distance_2m_SONY_PCM_D50_F1_MS1.mat
006_M2_Distance_0.5m_AKG_C1000S_F1_MS1.mat
.......... 100 x more
and I habe to check loaded files for namepart (groups) with '0.5m', '2m', 'AKG' or 'SONY'.
There are allways combination of two groups and I plot later just twis groups (exmpl: const 0.5m and SONY vs AKG; const SONY and 0.5m vs 2m):
if (strcmp(str_dist,'0.5m')|| strcmp(str_dist,'0.5')) && strcmp(str_mic,'AKG')
R1 = R1 + M;
cnt1 = cnt1 + 1;
label1 = extractBefore({i(j).name}, ".mat");
label1 = extractAfter(label1, "_");
M1 = (R1/cnt1);
elseif strcmp(str_dist,'2m') && strcmp(str_mic,'AKG')
R2 = R2 + M;
cnt2 = cnt2 + 1; % I know, one cnt is enough
label2 = extractBefore({i(j).name},".mat");
label2 = extractAfter(label2, "_");
M2 = (R2/cnt2);
elseif (strcmp(str_dist,'0.5m')|| strcmp(str_dist,'0.5')) && strcmp(str_mic,'SONY')
R3 = R3 + M;
cnt3 = cnt3 + 1;
label3 = extractBefore({i(j).name}, ".mat");
label3 = extractAfter(label3, "_");
M3 = (R3/cnt3);
elseif strcmp(str_dist,'2m') && strcmp(str_mic,'SONY')
R4 = R4 + M;
cnt4 = cnt4 + 1; % I know, one cnt is enough
label4 = extractBefore({i(j).name}, ".mat");
label4 = extractAfter(label4, "_");
M4 = (R4/cnt4);
end
Its looks not ellegant, did you have an idea? Thank you very very much!
Image Analyst
Image Analyst on 4 Jul 2020
I'd use counter instead of cnt - it's more descriptive it sounds a lot less naughty, than "I know, one cnt is enough".
You might want to consider contains(string, pattern, 'IgnoreCase', true) instead of strcmp(). Or at least use strcmpi() for more robustness. And you might want to cast to lower because you're never totally sure if the extension returned by the operating system will be upper case or lower case:
extractBefore(lower({i(j).name}), '.mat');
When you're assigning the M's you don't need parentheses:
M4 = R4 / cnt4;
Personally I like spaces around operators but that's a matter of style.
You should also have an else clause with no if. What if none of the criteria are satisfied? Will your code will work, or will you get an error downstream because nothing got assigned?
Nik Rocky
Nik Rocky on 6 Jul 2020
Hello Image Analyst! Thank you very much!
I solve all of you tipps:
clear
steps_SNR = 15; %%% give step size and be happy
save_plot = 0; %%% print
print_lablepoints = 1; %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
TIME1 = datestr(now, 'dd/mm/yy-HH:MM:SS');
disp('*******************************************************************')
disp('Beginn:')
disp(TIME1)
disp('*******************************************************************')
addpath(genpath('/MATLAB Drive/06.07.20/'));
%Res = ('/home/user/workspace/QT/Software_2.0_QT/SORT_RESULTS/End/');
%ah = cd('/home/user/workspace/QT/Software_2.0_QT/IO/RESULTS/VS/');
Res = ('/MATLAB Drive/06.07.20/End');
set(groot, 'DefaultFigureVisible', 'on')
i = dir('**/*.mat');
tic
%cla()
M_input_1 = cell(length(i), 1);
M_input_2 = cell(length(i), 1);
M_input_3 = cell(length(i), 1);
M_input_4 = cell(length(i), 1);
plotCount = 1;
legendStrings = [];
Value_Sort = cell(length(i),1);
for j = 1:length(i)
roc_file_folder = i(j).folder;
roc_file_name = i(j).name;
ROC_File_Folder_Name = fullfile(roc_file_folder,roc_file_name);
load(ROC_File_Folder_Name)
disp(roc_file_name)
folder = i(j).folder;
Title_Parts = strsplit(folder, '/');
Motorentyp = Title_Parts{1,end-3};
Motorentyp = strsplit(Motorentyp, '_');
Motorentyp = Motorentyp{1,end};
Mikrofon_Distanz_1 = Title_Parts{1,end-1};
Mikrofon_Distanz_2 = Title_Parts{1,end};
Motoregruppe = Title_Parts{1,end-2};
Motoregruppe = strsplit(Motoregruppe, '_');
Motoregruppe = Motoregruppe{1,end};
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SNR_help = ((length(M)-1)/2)*steps_SNR;
SNR = -SNR_help:steps_SNR:SNR_help;
%figure('Name',' receiver operating characteristic','NumberTitle','on');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
str = strsplit(roc_file_name, '_');
str_dist = str{1,4};
str_mic = str{1,5};
if (strcmpi(str_dist,'0.5m')|| strcmpi(str_dist,'0.5')) && strcmpi(str_mic,'AKG')
M_input_1{j} = M;
%label1 = strjoin({'Motorentyp:',Motorentyp,',Motorengruppe:',Motoregruppe,',Setup:',Mikrofon_Distanz1,'und',Mikrofon_Distanz2});
label1 = strjoin({'Setup:',Mikrofon_Distanz_1,'und',Mikrofon_Distanz_2});
elseif strcmpi(str_dist,'2m') && strcmpi(str_mic,'AKG')
M_input_2{j} = M;
%label2 = strjoin({'Motorentyp:',Motorentyp,',Motorengruppe:',Motoregruppe,',Setup:',Mikrofon_Distanz1,'und',Mikrofon_Distanz2});
label2 = strjoin({'Setup:',Mikrofon_Distanz_1,'und',Mikrofon_Distanz_2});
elseif (strcmpi(str_dist,'0.5m')|| strcmpi(str_dist,'0.5')) && strcmp(str_mic,'SONY')
M_input_3{j} = M;
label3 = strjoin({'Setup:',Mikrofon_Distanz_1,'und',Mikrofon_Distanz_2});
%label3 = strjoin({'Motorentyp:',Motorentyp,',Motorengruppe:',Motoregruppe,',Setup:',Mikrofon_Distanz1,'und',Mikrofon_Distanz2});
elseif strcmpi(str_dist,'2m') && strcmpi(str_mic,'SONY')
M_input_4{j} = M;
label4 = strjoin({'Setup:',Mikrofon_Distanz_1,'und',Mikrofon_Distanz_2});
%label4 = strjoin({'Motorentyp:',Motorentyp,',Motorengruppe:',Motoregruppe,',Setup:',Mikrofon_Distanz1,'und',Mikrofon_Distanz2});
else
disp('Selfdestroy activated')
end
for u = 1:length(M)
if print_lablepoints ==1
buffer = [.2 .3 .4];
buffer = buffer * 2;
buffer = repmat(buffer,1,ceil(numel(M(:,2))/numel(buffer)));
buffer(numel(M(:,2))+1:end) = [];
[~, ySortIdx] = sort(M(:,2));
buffer(ySortIdx) = buffer;
end
end
end
SNR = compose('%d dB', SNR);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
M_input_1 = cat(3, M_input_1{:});
M1 = mean(M_input_1, 3);
S1 = std(M_input_1,0,3);
M_input_2 = cat(3, M_input_2{:});
M2 = mean(M_input_2, 3);
S2 = std(M_input_2,0,3);
M_input_3 = cat(3, M_input_3{:});
M3 = mean(M_input_3, 3);
S3 = std(M_input_3,0,3);
M_input_4 = cat(3, M_input_4{:});
M4 = mean(M_input_4, 3);
S4 = std(M_input_4,0,3);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
ax = gca;
ax.SortMethod='ChildOrder';
if any(M1)
%plot(M1(:,2),M1(:,1),'-o','DisplayName',label1{1});
e1 = errorbar(M1(:,2),M1(:,1),S1(:,2),S1(:,2),S1(:,1),S1(:,1),'--o','LineWidth',2,'MarkerFaceColor','cyan','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label1);
e1.LineWidth = 0.5;
legendStrings{plotCount} = label1;
plotCount = plotCount + 1;
a = labelpoints(M1(:,2),M1(:,1), SNR, 'E',buffer,'FontSize', 12);
set(a, 'interpreter', 'latex');
hold on
end
if any(M2)
%plot(M2(:,2),M2(:,1),'-o','DisplayName',label2{1});
e2 = errorbar(M2(:,2),M2(:,1),S2(:,2),S2(:,2),S2(:,1),S2(:,1),'--s','LineWidth',2,'MarkerFaceColor','yellow','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label2);
e2.LineWidth = 0.5;
legendStrings{plotCount} = label2;
plotCount = plotCount + 1;
b = labelpoints(M2(:,2),M2(:,1), SNR, 'E', buffer,'FontSize', 12);
set(b, 'interpreter', 'latex');
hold on
end
if any(M3)
%plot(M3(:,2),M3(:,1),'-o','DisplayName',label3{1});
e3 = errorbar(M3(:,2),M3(:,1),S3(:,2),S3(:,2),S3(:,1),S3(:,1),'--d','LineWidth',2,'MarkerFaceColor','magenta','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label3);
e3.LineWidth = 0.5;
legendStrings{plotCount} = label3;
plotCount = plotCount + 1;
c = labelpoints(M3(:,2),M3(:,1), SNR, 'E', buffer,'FontSize', 12);
set(c, 'interpreter', 'latex');
hold on
end
if any(M4)
%plot(M4(:,2),M4(:,1),'-o','DisplayName',label4{1});
e4 = errorbar(M4(:,2),M4(:,1),S4(:,2),S4(:,2),S4(:,1),S4(:,1),'--v','LineWidth',2,'MarkerFaceColor','green','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label4);
e4.LineWidth = 0.5;
legendStrings{plotCount} = label4;
plotCount = plotCount + 1;
d = labelpoints(M4(:,2),M4(:,1), SNR, 'E', buffer,'FontSize', 12);
set(d, 'interpreter', 'latex');
hold on
end
lgd = legend(legendStrings, 'Interpreter', 'none','Location','northeast');
title(lgd,'Vergleich zwischen Drehzahlsetups:')
%title(['ROC: Motorentyp ',Motorentyp,', Motorengruppe ',Motoregruppe,', Konstante: ',Mikrofon_Distanz_1],'Interpreter','none')
title(['ROC: Motorentyp ',Motorentyp,', Motorengruppe ',Motoregruppe],'Interpreter','none')
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
help_x = 0:0.1:1;
help_y = 0:0.1:1;
h = plot(help_x,help_y,'--','Color','g');
h.Annotation.LegendInformation.IconDisplayStyle = 'off';
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
if exist('a','var'); uistack(a,'top'); end
if exist('b','var'); uistack(b,'top'); end
if exist('c','var'); uistack(c,'top'); end
if exist('d','var'); uistack(d,'top'); end
xlabel('False discovery rate')
ylabel('True positive rate')
axis equal
xlim([0 1]);
ylim([0 1]);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%set(0,'DefaultFigureColor','remove')
set(0,'DefaultFigureColor',[1 1 1])
file_save = strcat('Motorentyp_',Motorentyp,'_Motorengruppe_',Motoregruppe,'_Konstante_',Mikrofon_Distanz_1,'.pdf');
Full_Export_Path = fullfile(Res,file_save);
if save_plot == 1
export_fig(Full_Export_Path)
%save(Full_Export_Path)
end
disp('*******************************************************************')
disp('Time Beginn:')
disp(TIME1)
disp('*******************************************************************')
disp('Time finish:')
TIME2 = datestr(now, 'dd/mm/yy-HH:MM:SS');
disp(TIME2)
disp('*******************************************************************')
toc
Thank you!

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More Answers (1)

madhan ravi
madhan ravi on 3 Jul 2020
Use labels without _ .
regexprep('001_M1_Distance_0.5m_AKG_C1000S_F1_MS1','_','') % to remove underscores

  2 Comments

Nik Rocky
Nik Rocky on 3 Jul 2020
Sorry I was scribing in description wrong - I want keep '_' this, but I dont want to have a letters undercase!

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