如何偏移 ax limited plot 上的第一个点，使其不在 R 的 y 轴上？

Question

I'm plotting data points by date using xyplot in R. This was my initial code.

xyplot(data$SpainRo ~ data$Date, data= data)

I needed to plot the data from a certain point onward so I used this.

xyplot(data$SpainRo ~ data$Date, data-data, xlim=as.Date(c("2020-02-27","2020-05-13")))

It works however, the first data point for February 27th falls directly on the y-axis, getting obscured. plot

I was wondering how to move it to the right so the first point isn't on the y-axis. Thank you for any help.

Answer 1

You need to exclude the data you don't want to plot, then expand the plot axis.

I'm assuming you are using xyplot from the lattice package.

lattice::xyplot(SpainRo ~ Date, data = data[data$Date > as.Date("2020-02-26"), ], 
                xlim = as.Date(c("2020-02-25","2020-05-13")))

Of course, I don't have your data because you haven't shared it in your question, so can't demonstrate that this solution works.

Note that you don't need to include data$ before formula variables if the function takes a data argument.