i want to have subsets in my legend

clc
clear all
%plot oecd total energy for steps, aps, and sds
TES_historical_time=[2010  	2015  	2019  	2020  ];
TES_historical=[231037	225604	228295	213629];

TES_time=[2030  	2035  	2040  	2045  	2050  ];
TES_steps=[215894	209431	205540	202555	200149];
TES_aps=[199887	185881	175659	169372	165899];
TES_sds=[197640	183243	170911	163577	160851];


TES_historical_time2=[2010  	2015  	2019  	2020  ];
TES_historical2=[298652	334447	367223	362481];

TES_time2=[2030  	2035  	2040  	2045  	2050  ];
TES_steps2=[433836	461992	484446	503065	515144];
TES_aps2=[431278	456696	473180	480883	485179];
TES_sds2=[383233	389760	391694	393396	399416];

figure(1)
%oecd plots
scatter(TES_historical_time, TES_historical,"red") , xlabel('year'), ylabel('total energy supply(TES)'), title('OECD countries')
hold on
scatter(TES_time, TES_steps,"blue")
scatter(TES_time, TES_aps,"cyan")
scatter(TES_time,TES_sds,"green"), 
%non_oecd plots
scatter(TES_historical_time2, TES_historical2,"red","x") , xlabel('year'), ylabel('total energy supply(TES)'), title('non-OECD countries')

scatter(TES_time2, TES_steps2,"blue","x")
scatter(TES_time2, TES_aps2,"cyan","x")
scatter(TES_time2,TES_sds2,"green","x"), legend({'historical','steps','aps','sds'}), title(legend, 'oecd (O) |non-oecd (X)')

i want to make a legend where oecd are O's and NONoecd are X's, and the colors correlate to the same labels, "historical, steps, aps, sds"

Answer 1

[Ganapathi Subramanian]

Hi Joshua,

It is my understanding that you are working on plotting data and wants to know how to create legends for ‘o’ and ‘x’ points in separate columns for same labels.

legend({'historical','steps','aps','sds','historical','steps','aps','sds'},'NumColumns',2) 
title(legend, 'oecd (O) |non-oecd (X)') 

For further information regarding legend function refer the below documentation

https://www.mathworks.com/help/matlab/ref/legend.html