如何增加情节的日期范围以便在系列结束时为 geom_text 腾出空间？

Question

我试图在最后使用 geom_text 为我的系列添加标签，为此我尝试增加 x 轴范围 为系列腾出空间标签，但它不会增加 scale_x_date.

的范围

数据

library(tidyverse)
library(lubridate)
library(scales)

file_url1 <- "https://raw.githubusercontent.com/johnsnow09/covid19-df_stack-code/main/rtpcr_test_daily_pct.csv"

rtpcr_test_daily_pct <- read.csv(url(file_url1))

rtpcr_test_daily_pct <- rtpcr_test_daily_pct %>%
  mutate(Updated.On = as.Date(Updated.On))

下面是我试过的代码，无论我使用 scale_x_date() 向 x 轴日期添加什么值，x 轴框架都保持不变。

我不确定我在下面尝试的代码有什么问题：

rtpcr_test_daily_pct %>% 
  
  filter(!is.na(pct_rtpcr),
         pct_rtpcr > 0 ) %>% 
  
  ggplot(aes(x = Updated.On, 
             y = pct_rtpcr,
             col = State) 
         ) +
  geom_line(size = 1) +
  
  geom_text(data = rtpcr_test_daily_pct %>% 
              filter(Updated.On == max(Updated.On)-1),
            aes(label = State, 
                x = Updated.On , 
                y = pct_rtpcr ),
            vjust = -1,  
            size = 3) +
  
  scale_y_continuous(labels = percent,
                     breaks = seq(.1,1, by = .1)) +
  
  expand_limits(y = .1 ) + # 
  scale_x_date(aes(limits = as.Date(c("2021-03-01",max(Updated.On) + 15)))) +
  
  theme_minimal() +
  theme(legend.position = "none") +
  
  labs(title = "% RTPCR testing Between Karnataka & Delhi- Mar'21 onwards") +
  coord_equal(ratio = 70)

Answer 1

使用：

scale_x_date(limits = c(as.Date("2021-03-01"),max(rtpcr_test_daily_pct$Updated.On) + 15))

完整代码-

library(tidyverse)

rtpcr_test_daily_pct %>% 
  filter(!is.na(pct_rtpcr),
         pct_rtpcr > 0 ) %>% 
  ggplot(aes(x = Updated.On, 
             y = pct_rtpcr,
             col = State) 
  ) +
  geom_line(size = 1) +
  geom_text(data = rtpcr_test_daily_pct %>% 
              filter(Updated.On == max(Updated.On)-1),
            aes(label = State, 
                x = Updated.On , 
                y = pct_rtpcr ),
            vjust = -1,  
            size = 3) +
  scale_y_continuous(labels = percent,
                     breaks = seq(.1,1, by = .1)) +
  expand_limits(y = .1 ) + # 
  scale_x_date(limits = c(as.Date("2021-03-01"),max(rtpcr_test_daily_pct$Updated.On) + 15)) + 
  theme_minimal() +
  theme(legend.position = "none") +
  labs(title = "% RTPCR testing Between Karnataka & Delhi- Mar'21 onwards") +
  coord_equal(ratio = 70)

如何增加情节的日期范围以便在系列结束时为 geom_text 腾出空间？

how to increase date range of a plot to make room for geom_text at the end of series?

r

ggplot2

geom-text