How to add a error bar to circos.barplot?

[liujilei156231]

Hello, I want to add a error bar to circos.barplot.How can I finish it?

Thanks!

[jokergoo]

No easy way, you have to add it manually.

[liujilei156231]

Yeah,the circos.connect module could achieve this goal, but it is too complex. So, expect circlize team to encapsulate this functionality. Thanks!

[jokergoo]

Error bars are basically segments. Let me give you an example:

circos.initialize(letters[1:4], xlim = c(0, 10))
circos.track(ylim = c(0, 1.2), panel.fun = function(x, y) {
    value = runif(10)
    mid = 1:10 - 0.5
    circos.barplot(value, mid, col = 1:10)

    error = value*0.2

    circos.segments(mid, value, mid, value + error)
    circos.segments(mid - 0.1, value + error, mid + 0.1, value + error)
})
circos.clear()

[liujilei156231]

Thanks！It's a simple implementation.