Plot legend and axis label does not display

Plot legend and axis label does not display, find codes below. Can anyone help?, Also, i would like to number each point PU(1, to 20) and SU(1 to 20) similar to the attached file.

%% Sample points considering a 10 × 10 area, consisting of 20 secondary usesrs (SUs) and 20 primary users (PUs)randomly distribute

SU = rand (20) * 10; % sample points

PU = rand (20) * 10; % sample points

%% figures

plot (SU (:, 1), SU (:, 2), '+ k' )

hold on

plot (PU (:, 1), PU (:, 2), '* k' )

hold off

text (SU (:, 1), SU (:, 2), compose ( '$ \\% d $' , 1: size (SU, 1)), 'Horiz' , 'left' , 'Vert' , ' middle ' , ' Interpreter ' , ' latex ' )

text (PU (:, 1), PU (:, 2), compose ( '$ \\% d $' , 1: size (PU, 1)), 'Horiz' , 'left' , 'Vert' , ' middle ' , ' Interpreter ' , ' latex ' )

legend('SU','PU')

Answer 1

[Voss]

Avoid putting extra spaces in character vectors, e.g., use:

'Vert' , 'middle' , 'Interpreter' , 'latex'

instead of:

'Vert' , ' middle ' , ' Interpreter ' , ' latex '

(MATLAB doesn't recognize ' Interpreter ' to be the same as 'Interpreter', for instance.)

%% Sample points considering a 10 × 10 area, consisting of 20 secondary usesrs (SUs) and 20 primary users (PUs)randomly distribute
SU = rand (20) * 10; % sample points  
PU = rand (20) * 10; % sample points
%% figures
plot (SU (:, 1), SU (:, 2), '+ k' )
hold on
plot (PU (:, 1), PU (:, 2), '* k' )
hold off
text (SU (:, 1), SU (:, 2), compose ( '$ \\% d $' , 1: size (SU, 1)), 'Horiz' , 'left' , 'Vert' , 'middle' , 'Interpreter' , 'latex' )
text (PU (:, 1), PU (:, 2), compose ( '$ \\% d $' , 1: size (PU, 1)), 'Horiz' , 'left' , 'Vert' , 'middle' , 'Interpreter' , 'latex' )
legend('SU','PU')

[Felix Obite]

Many thanks. I appreciate

Answer 2

[Star Strider]

Spaces are significant in name-value pair arguments, so ' Interperter ' will not be recognised.

%% Sample points considering a 10 × 10 area, consisting of 20 secondary usesrs (SUs) and 20 primary users (PUs)randomly distribute
SU = rand (20) * 10; % sample points  
PU = rand (20) * 10; % sample points
%% figures
plot (SU (:, 1), SU (:, 2), '+ k' )
hold on
plot (PU (:, 1), PU (:, 2), '* k' )
hold off
text (SU (:, 1), SU (:, 2), compose ( '$ \\% d $' , 1: size (SU, 1)), 'Horiz' , 'left' , 'Vert' , 'middle' , 'Interpreter' , 'latex' )
text (PU (:, 1), PU (:, 2), compose ( '$ \\% d $' , 1: size (PU, 1)), 'Horiz' , 'left' , 'Vert' , ' middle ' , 'Interpreter' , 'latex' )
legend('SU','PU')

They display now!

.

[Felix Obite]

Thanks a lot. I appreciate