我可以將以下內容轉換df為 tsibble 物件并使用gg_season()：
library(tsibble)
library(feasts)
library(tidyr)
library(dplyr)
df <- structure(list(date = structure(c(18292, 18321, 18352, 18382,
18413, 18443, 18474, 18505, 18535, 18566, 18596, 18627, 18658,
18686, 18717, 18747, 18778, 18808, 18839, 18870, 18900, 18931,
18961, 18992), class = "Date"), value1 = c(-2.94, -40.61, -6.89,
3.04, -3.5, 0.18, 6.79, 9.08, 9.35, 10.92, 20.53, 18.04, 24.6,
154.6, 30.4, 32.1, 27.7, 32.1, 19.2, 25.4, 28, 26.9, 21.7, 20.9
), value2 = c(-12.66, 7.56, -1.36, -14.39, -16.18, 3.29, -0.69,
-1.6, 13.47, 4.83, 4.56, 7.58, 28.7, 18.9, 39.1, 44, 52, 37.1,
28.2, 32.7, 17.2, 20.4, 31.4, 19.5)), class = "data.frame", row.names = c(NA,
-24L))
# Convert to tsibble object and plot using gg_season()
df %>%
pivot_longer(value1:value2) %>%
mutate(date = yearmonth(date)) %>%
mutate(year = year(date)) %>%
as_tsibble(index = date, key = name) %>%
gg_season(value)
geom_point() #
# scale_color_manual(values = c('2020' = 'blue', '2021' = 'red'))
現在我嘗試根據不同年份自定義顏色，即設定blue為2020和red。2021我已經添加了scale_color_manual(values = c('2020' = 'blue', '2021' = 'red'))，但我還沒有成功，我怎么能正確地做到這一點？謝謝。
參考：
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