How to avoid undercase in plot legend?

Hello,

i have names like:

roc_file_name =
    '003_m1_30_90_ramp_20200611_200632_SNR_F1_PLL.mat'
    

1. how can i avoid the lower case in legend?
2. How can i open new legends "on the fly" (somethink like hold on for plots)

And another question, by the way -

if I have a full path:

fullfile(FilePath,roc_file_name)

    ans = '/home/user/workspace/QT/Software_2.0_QT/IO/Motor_Set_1/AKG_C1000S/Distance_0.5m/Scenario_M1/003_m1_30_90_ramp_20200611_200632/003_m1_30_90_ramp_20200611_200632_SNR_F1_PLL.mat'
   

can I easy convert to

short_name = 'MS1/AKG/0.5m/M1/003' or short_name = 'MS1_AKG_0.5m_M1_003' or simmilar?

Thank you!

Answer 1

[Star Strider]

Try this:

legend('003_m1_30_90_ramp_20200611_200632_SNR_F1_PLL.mat', 'Interpreter','none')

It ‘turns off’ the existing interpreter for that legend object only. (This also works for other text objects.)

.

[Nik Rocky]

Thank you for answer, but its not working! Absolutley no effect!

your example looks so

[Star Strider]

It worked correctly when I tested it (in R2020a), or I would not have posted it.

My test code:

x = 1:20;
y = rand(size(x));

figure
plot(x, y)
legend('003_m1_30_90_ramp_20200611_200632_SNR_F1_PLL.mat', 'Interpreter','none')

My result:

It obviously worked correctly for me.

.

[Nik Rocky]

It seams to be a version Problem:

Do you know maybe how to put multiple Legend for anknown amount of Measures? (in foor loop)

[Nik Rocky]

I print allready al 3 files in directory, but still one (last) name

Code:

steps_SNR = 1; %%%input

i = dir('**/*.mat');
for p = 1:length(i)
roc_file_name = i(p).name;
load(roc_file_name)
disp(roc_file_name)


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SNR_help = ((length(M)-1)/2)*steps_SNR;
SNR = -SNR_help:steps_SNR:SNR_help;
%figure('Name',' receiver operating characteristic','NumberTitle','on');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
hold all

p1 = plot(M(:,2),M(:,1),'--o');
buffer = [.1 .3 .5];
buffer = repmat(buffer,1,ceil(numel(M(:,2))/numel(buffer))); 
buffer(numel(M(:,2))+1:end) = []; 
[~, ySortIdx] = sort(M(:,2)); 
buffer(ySortIdx) = buffer; 
labelpoints(M(:,2),M(:,1), SNR, 'E', buffer)
%%%%%%%%%%%%%%%%%%%%%%%%%%%

hold all
lgd = legend([p1],roc_file_name,'Interpreter','none','Location','Best');
title(lgd,'Compare AKG and Sony')
help_x = 0:0.1:1;
help_y = 0:0.1:1;
plot(help_x,help_y,'--','Color','g');
xlabel('False discovery rate')
ylabel('True positive rate')
xlim([0 1]);
ylim([0 1]);
end

[Star Strider]

That may be.

The only work-around I am aware of is to replace the underscores (_) with backslant-underscores (\_).

Try this:

legend(strrep('003_m1_30_90_ramp_20200611_200632_SNR_F1_PLL.mat','_','\_'))

You can do it manually if you like. I use strrep here.

EDIT — (24 Jun 2020 at 21:48)

Another option:

hl = legend('003_m1_30_90_ramp_20200611_200632_SNR_F1_PLL.mat');
set(hl, 'Interpreter','none')

I have not needed to do this in years, so I just now remembered it:

.

[Nik Rocky]

Perfekt, thank you! It works!

[Star Strider]

As always, my pleasure!