X轴网格线名称未显示在图表上

Question

我想绘制fda包中加拿大天气数据的月平均温度图表。但是，不会显示x轴网格线名称。

我使用的是来自fda软件包的加拿大月平均气温数据。

op1 <- par(mar=c(5, 4, 4, 5)+.1)
stations_all <- c("St.Johns", "Halifax", "Sydney","Yarmouth","Charlottvl","Fredericton","Scheffervll","Arvida","Bagottville","Quebec","Sherbrooke","Montreal","Ottawa","Toronto","London","Thunderbay","Winnipeg","The Pas","Churchill","Regina","Pr. Albert","Uranium Cty","Edmonton","Calgary","Kamloops","Vancouver","Victoria","Pr. George","Pr. Rupert","Whitehorse","Dawson","Yellowknife","Iqaluit","Inuvik","Resolute") 
matplot(CanadianWeather$monthlyTemp,type="l", axes=FALSE, xlab="month", ylab="monthly Temperature (deg C)")
axis(2, las=1)
# Label the horizontal axis with the month names
axis(1, 1:12, labels=FALSE)
axis(1, monthMid, monthLetters)

未显示x轴网格线名称。

Answer 1

你可以试试

library(fda)

matplot(CanadianWeather$monthlyTemp,type="l", axes=FALSE, 
        xlab="month", ylab="monthly Temperature (deg C)") 

axis(2, las=1) 
axis(1, 1:12, month.abb)

​

​