[英]How to add value labels in ggplot time series
如何在 ggplot 时间序列图中添加具有相应值的标签?
我试过了,但没有成功...
library(ggplot2)
library(ggrepel)
library(dplyr)
library(plotly)
set.seed(1234)
df <- data.frame(
dates = c(
"2022-01-01",
"2022-01-02",
"2022-01-03",
"2022-01-04",
"2022-01-05",
"2022-01-06",
"2022-01-07",
"2022-01-08",
"2022-01-09",
"2022-01-10",
"2022-01-11",
"2022-01-12",
"2022-01-13",
"2022-01-14",
"2022-01-15",
"2022-01-16",
"2022-01-17",
"2022-01-18",
"2022-01-19",
"2022-01-20"
),
yhat = rnorm(20, 0, 1),
realv = rnorm(20, 0, 1)
) %>%
mutate(
dates = as.Date(dates)
)
通过使用 plotly,我尝试了...
ggplotly(
ggplot(df, aes(x = dates)) +
geom_line(aes(y = yhat), color = "red") +
geom_line(aes(y = realv), color = "black") +
geom_text_repel(data = df, aes(dates, yhat, label = realv))
)
我尝试使用geom_text(aes(label = as.character(yhat_final)), size = 7)
添加标签,但它也没有用..
根据警告消息 geom_text_repel 尚未在 plotly 中实现。
警告消息:在 geom2trace.default(dots[[1L]][[1L]],dots[[2L]][[1L]],dots[[3L]][[1L]]) 中:geom_GeomTextRepel() 尚未在 plotly 中实现。 如果你想看到这个 geom 的实现,请在https://github.com/ropensci/plotly/issues上用你的示例代码打开一个问题
您可以使用 geom_text 并在 y 值上进行操作:
ggplotly( ggplot(df, aes(x = dates)) +
geom_line(aes(y = yhat), color = "red") +
geom_line(aes(y = realv), color = "black") +
geom_text(data = df, aes(dates, yhat + 0.2, label = round(realv, digits = 1))))
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