[英]Grouping elements in legend fails with ggplotly
在下面的示例中,分组 ggplot-elements 似乎有效,直到我使用plotly::ggplotly()
转换绘图。 我正在努力理解这是因为我做错了什么,还是这是另一个情节错误。
# example data
df <- structure(list(a = structure(list(est_score = c(0.208979731611907,0.328919041901827, 0.396166493743658), upper_bound = c(0.992965325427929,1.11290463571785, 1.18015208755968), lower_bound = c(-0.575005862204114,-0.455066551914195, -0.387819100072363), ci_range = c(1.56797118763204,1.56797118763204, 1.56797118763204)), row.names = c(NA, -3L), class = c("tbl_df","tbl", "data.frame")), b = structure(list(est_score = c(0.688612399809063,0.584376397356391, 0.63451482411474), upper_bound = c(1.47259799362508,1.36836199117241, 1.41850041793076), lower_bound = c(-0.0953731940069589,-0.19960919645963, -0.149470769701281), ci_range = c(1.56797118763204,1.56797118763204, 1.56797118763204)), row.names = c(NA, -3L), class = c("tbl_df","tbl", "data.frame")), c = structure(list(est_score = c(0.462245718948543,0.636445740051568, 0.206650576367974), upper_bound = c(1.24623131276456,1.42043133386759, 0.990636170183996), lower_bound = c(-0.321739874867478,-0.147539853764454, -0.577335017448047), ci_range = c(1.56797118763204,1.56797118763204, 1.56797118763204)), row.names = c(NA, -3L), class = c("tbl_df","tbl", "data.frame")), d = structure(list(est_score = c(0.105384588986635,0.456747563555837, 0.281916436739266), upper_bound = c(0.889370182802657,1.24073315737186, 1.06590203055529), lower_bound = c(-0.678601004829386,-0.327238030260185, -0.502069157076755), ci_range = c(1.56797118763204,1.56797118763204, 1.56797118763204)), row.names = c(NA, -3L), class = c("tbl_df","tbl", "data.frame"))), row.names = c(NA, -3L), class = c("tbl_df","tbl", "data.frame"))
library(dplyr)
library(tidyr)
library(ggplot2)
library(plotly)
y_names <- colnames(df) %>% unique()
y_n <- length(y_names)
plot_data <- df %>% mutate("case_id" = row_number()) %>%
tidyr::pivot_longer(
cols = -case_id
) %>%
arrange(name)
plot <- ggplot()
plot <- plot + geom_point(
data = plot_data,
aes(
x = value$est_score,
y = factor(name),
shape = factor(case_id),
color = factor(case_id)
),
size = 2
)
plot <- plot + ggplot2::geom_segment(
data = plot_data,
aes(
y = factor(name),
yend = factor(name),
x = value$lower_bound,
xend = value$upper_bound,
color = factor(case_id)
),
size = .2
)
如您所见,ggplot中的图例分组正确
> plot
而ggplotly(p = plot)
将三个 geom_segments 中的两个添加到图例中。
为什么会发生这种情况以及如何防止这种情况发生? 谢谢
我查看了转换后的 plotly-object 并找到了一个临时(但丑陋)的修复方法:
pp <- ggplotly(
p = plot
)
在检查pp$x$data
,很明显name
、 legendgroup
和showlegend
对于某些showlegend
体的设置不同。 这可以手动修复,例如通过循环转换的对象:
n_cases <- length(unique(plot_data$case_id))
for (i in 1:n_cases) {
pp$x$data[[i]]$name <- i
pp$x$data[[i]]$legendgroup <- i
pp$x$data[[i + n_cases]]$name <- i
pp$x$data[[i + n_cases]]$legendgroup <- i
pp$x$data[[i + n_cases]]$showlegend <- FALSE
}
这可能是 plotly 中的一个错误,但由于缺乏替代方案,我将坚持这个解决方案。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.