下面的图表接近我所要寻找的内容,但是我想知道是否有可能实现以下内容:
已用所需的蓝色更改对图像进行注释。

require(dplyr); require(plotly); require(RColorBrewer); require(stringr)
# Summarise flow data
dat <- data.frame(customer = c(1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 5),
holiday_loc = c("SA", "SA", "AB", "SA", "SA", "SA", "SA", "AB", "AB", "SA", "SA", "SA")) %>%
group_by(customer) %>%
mutate(holiday_num = seq_along(customer),
source=paste0(holiday_loc, '_', holiday_num),
target = lead(source),
last_hol = ifelse(holiday_num == n(), 'Y', 'N')) %>%
filter(last_hol== 'N'| holiday_num == 1) %>%
select(-last_hol)
sank_links <- dat %>%
group_by(source, target) %>%
summarise(n=n()) %>%
mutate(target=ifelse(is.na(target), "DROP", target)) # is there another option here?
# obtain colours for nodes
f <- function(pal) brewer.pal(brewer.pal.info[pal, "maxcolors"], pal)
cols <- f("Set1")
# set up nodes
sank_nodes <- data.frame(
name = factor(sort(unique(c(as.character(sank_links$source),
as.character(sank_links$target)))))
) %>%
mutate(label=sub("_[0-9]$", "", name),
# for some unknown reason, plotly allows only three labels to be the same
label_pad=sub("_[1-3]$", "", name),
label_pad=sub("_[4-6]$", " ", label_pad)) %>%
arrange(label) %>%
mutate(color = cols[cumsum(1-duplicated(label))])
# update links to get index of node and name (without holiday_num)
sank_links <- sank_links %>%
mutate(source_num = match(source, sank_nodes$name) -1 ,
source_name = str_replace(source, "_[0-9]$", ""),
target_num = match(target, sank_nodes$name) - 1,
target_name = str_replace(target, "_[0-9]$", ""))
# diagram
p <- plot_ly(
type = "sankey",
domain = c(
x = c(0,1),
y = c(0,1)
),
orientation = "h",
valueformat = ".0f",
valuesuffix = "Customers",
arrangement="fixed",
node = list(
label = sank_nodes$label_pad,
color = sank_nodes$color,
pad = 15,
thickness = 15,
line = list(
color = "black",
width = 0.5
)
),
link = list(
source = sank_links$source_num,
target = sank_links$target_num,
value = sank_links$n
)
) %>%
layout(
title = "",
font = list(
size = 10
),
xaxis = list(showgrid = F, zeroline = F),
yaxis = list(showgrid = F, zeroline = F)
)
p编辑:我最初不知道如何用与节点对应的断点标记x轴,并提供x轴的标题;代码如下:
%>%
layout(
title = "",
font = list(
size = 10
),
xaxis = list(showgrid = F, zeroline = F, title="Holiday Number", tickvals=-1:4, ticktext=1:6),
yaxis = list(showgrid = F, zeroline = F, showticklabels=FALSE)
)发布于 2020-01-06 18:26:55
实际上,您可以手动覆盖de节点位置(所有节点或只覆盖您想要的节点位置)。
您可以在节点列表中这样做,为x轴添加一个向量,为y轴添加一个向量,其中包含要更改的节点的位置。如果要将节点保持在相同位置,只需将NA添加到该矢量位置即可。
node = list(
label = sank_nodes$label_pad,
color = sank_nodes$color,
pad = 15,
thickness = 15,
line = list(
color = "black",
width = 0.5
),
x = c(NA, 0.35, 0.65, NA, NA, NA, NA, NA),
y = c(NA, 0.10, 0.42, NA, NA, NA, NA, NA)
)发布于 2018-05-01 20:13:46
您不能在Plotly中更改节点的位置,但是如果您将布局从“固定的”更改为“自由的”,则在图表呈现后,您可以手动将节点移动到任何您想要的位置。但是,每次呈现图表时,用户都必须手动完成此操作。目前还无法对中的节点进行排序。
发布于 2020-05-09 10:05:44
事实上,这是很有可能的。
import plotly.graph_objects as go
fig = go.Figure(go.Sankey(
arrangement = "snap",
node = {
"label": ["A", "B", "C", "D", "E", "F"],
"x": [0.2, 0.1, 0.5, 0.7, 0.3, 0.5],
"y": [0.7, 0.5, 0.2, 0.4, 0.2, 0.3],
'pad':10}, # 10 Pixels
link = {
"source": [0, 0, 1, 2, 5, 4, 3, 5],
"target": [5, 3, 4, 3, 0, 2, 2, 3],
"value": [1, 2, 1, 1, 1, 1, 1, 2]}))
fig.show()代码来自plotly.com。
https://stackoverflow.com/questions/48807397
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