How to write _ in a plot legend?

xxx = {'a_b'}

plot(1:5)

legend(xxx)

>> result is

i want to 'a_b' in legend .......

How to write ??

Answer 1

[Cris LaPierre]

Set the interpreter to 'none'

xxx = {'a_b'};
plot(1:5)
legend(xxx,'interpreter','none')

[도현 김]

very very very very very very very very very Thank you !!!!

happy new year ~!~!

Answer 2

[Walter Roberson]

legend(xxx, 'interpreter', 'none')

[도현 김]

thanks ! ! :)

Answer 3

[weikang zhao]

1. change the Interpreter like other answers
2. Tex has its own escape for _ :

legend('a\_b');