温度曲线在R [英] Temperature curve in R

问题描述

我想在一个绘图中创建两条温度曲线。
我的Dataframe如下所示：

  temp<  -  read.table（text =Time Temp1 Temp2 
 1 00:00 18.62800 18.54458 
 2 00:10 18.60025 18.48283 
 3 00:20 18.57250 18.36767 
 4 00:30 18.54667 18.36950 
 5 00:40 18.51483 18.36550 
 6 00:50 18.48325 18.34783 
 7 01:00 18.45733 18.22625 
 8 01:10 18.43767 18.19067 
 9 01:20 18.41583 18.22042 
 10 01:30 18.39608 18.21225 
 11 01:40 18.37625 18.18658 
 12 01:50 18.35633 18.05942 
 13 02:00 18.33258 18.04142，h eader = T）
  

如何获得干净的曲线（线条上没有边线）只在x轴上显示每小时（24小时）？
我在想ggplot2的东西，但是我仍然在学习R基础知识。

值，但只有完整小时作为x轴标签，您可以使用 ggplot 包打印数据，并使用 scale_x_discrete（）选项来指定 breaks 。

  library（ggplot2）
 
 is_full_time <-gppl（'：00'，temp $ Time）
 ggplot（temp，aes（x = Time，y = Temp1，group = 1））+ geom_line（）+ scale_x_discrete（breaks = temp $ Time [is_full_time]）
  

I'd like to create two temperature curves in one plot. My Dataframe looks like this:

temp <- read.table(text = "     Time        Temp1       Temp2
                           1  00:00     18.62800    18.54458
                           2   00:10     18.60025    18.48283
                           3   00:20     18.57250    18.36767
                           4   00:30     18.54667    18.36950
                           5   00:40     18.51483    18.36550
                           6   00:50     18.48325    18.34783
                           7   01:00     18.45733    18.22625
                           8   01:10     18.43767    18.19067
                           9   01:20     18.41583    18.22042
                           10  01:30     18.39608    18.21225
                           11  01:40     18.37625    18.18658
                           12  01:50     18.35633    18.05942
                           13  02:00     18.33258    18.04142", header = T)

How can I get clean curves (no edges on the lines like a linechart) by only showing each hour (24 hours) on the x-axis? Im thinking about something with ggplot2 but I'm still learning R basics.

解决方案

If you want to plot all values but only have full hours as x-axis labels you can plot the data with the ggplot package and use the scale_x_discrete() option to specify the breaks.

library(ggplot2)

is_full_time <- grepl(':00', temp$Time)
ggplot(temp, aes(x = Time, y = Temp1, group = 1)) + geom_line() + scale_x_discrete(breaks = temp$Time[is_full_time])

http://ggplot2.tidyverse.org/reference/scale_discrete.html

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