R语言 X轴为日期时 使用scale_x_date
scale_x_date(name = ..., breaks = ..., labels = ..., limits = ...)
scale_x_date(name="x轴名称",breaks=date_breaks("1 month"),labels=date_format("%Y-%m"),limits=as.Date(c("2014-01-01","2018-01-01")))
| Name | Description | |
|---|---|---|
| name | Label for x axis. | x轴名称 |
| breaks | Points at which x gridlines appear. | 刻度值 |
| labels | Labels for x ticks. | 刻度间隔 |
| limits | Where x axis starts/stops. | 刻度开始结束值（只能为1-2位） |
