如何在R中的x轴上设置离散值

Question

When I plot data: 当我绘制数据时：

plot(c(1.2,4,7),col=2)

How do I display my graph so it only shows whole values on the x axis? 如何显示图形，使其仅在x轴上显示整个值？

Answer 1

First turn off the x-axis in your plot statement: 首先在plot语句中关闭x轴：

plot(c(1.2, 4, 7), col=2, xaxt="n")

Then add the axis of your choice, for example: 然后添加您选择的轴，例如：

axis(1, at=round(x, 0))

where x is the unrounded values at where you would like tick marks 其中x是您想要刻度线的未取整值