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How do I create a legend in the matplot command?
a = rnorm(1000)
b = runif(1000)
matplot(cbind(a, b), type = 'l')
1 answer
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You can create a caption quickly with the command legend. I made a little caption for the example you quoted:
a = rnorm(1000)
b = runif(1000)
matplot(cbind(a, b), type = 'l', ylim=c(-5,5), main = "Séries",
xlab = 'dias', ylab='contagens')
legend("topright", legend = c('a', 'b'), col = c('red', 'black'),
ncol = 2, cex = 1, lwd = 2, text.col = c('red', 'black'))
OBS
The command legend has several options and you can see all the documentation through:
??legend
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You use the same function as in a
plot()normal. Take a look at?legend.– Willian Vieira
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