【发布时间】:2020-09-20 19:07:25
【问题描述】:
我正在尝试使用交互式网络构建一个闪亮的应用程序,但我遇到了两个问题。
首先,我无法弄清楚为什么我确实存在零索引问题,因为我使用了解决方案来修复它,但它无法正常工作。另一方面,我可能做错了什么。
其次,我在根据组 (list_initiators$factions) 过滤节点时遇到问题。目前,当我想更改“连接”时,图表会做出反应,但它与派系有一些故障。我希望图表只显示派系的节点,这些派系确实有联系。当我取消选中侧框中的某些派系时,当没有连接并且没有正确反应时,图表会冻结。您也可以在表格中看到这一点。
这是我的代码
library(shiny)
library(dplyr)
library(tidyr)
library(networkD3)
list_initiators <- read.csv("https://raw.githubusercontent.com/Okssana/shiny_app_network/master/nodes_amends_20_09_2020.csv", fileEncoding = "Windows-1251") %>%
select(-X)
edges_for_gephy <- read.csv("https://raw.githubusercontent.com/Okssana/shiny_app_network/master/edges_amends_20_09_2020.csv") %>%
select(-X)
# UI ####
ui <- fluidPage(
sidebarLayout(
sidebarPanel(
checkboxGroupInput('factions_input',
'Choose faction',
choices = unique(list_initiators$factions),
selected = unique(list_initiators$factions)),
sliderInput("amends_connection",
"Connections",
min = 1,
max = 15,
value = 5)),
mainPanel(forceNetworkOutput("network_amends"),
tableOutput("table_nodes"),
tableOutput("table_edges")
)
)
)
# server ####
server <- function(input, output, session) {
# Download data
list_initiators <- as.data.frame(list_initiators)
edges_for_gephy <- as.data.frame(edges_for_gephy)
# Nodes\vertices
nodes_rea <-reactive({
nodes_reactive <- list_initiators%>%
filter(factions %in% input$factions_input)
})
# Edges\links
links_rea <-reactive({
edges_reactive <- edges_for_gephy%>%
filter(Value >= input$amends_connection)
})
# Render tables showing content of uploaded files
output$table_edges <- renderTable({
links_rea() # Edges
})
output$table_nodes <- renderTable({
nodes_rea() #Nodes
})
output$network_amends <- renderForceNetwork({
links1 <-links_rea()
# These three lines have to solve problem with zero-indexing, but it doesn't work
# I still have this warning: It looks like Source/Target is not zero-indexed. This is required in JavaScript and so your plot may not render.
links1$Source <- match(links_rea()$Source, nodes_rea()$ID_mps)-1
links1$Target <- match(links_rea()$Target, nodes_rea()$ID_mps)-1
forceNetwork(Links = links1, # source target value
Nodes = nodes_rea(), # name
Source = "Source",
Target = "Target",
Value = "Value",
Group = "factions", # Colors
NodeID = "names_mps",
Nodesize = "weight_name",
opacity = 1,
fontSize = 18,
zoom = T,
legend = TRUE,
bounded = TRUE,
charge=-10)
})
}
runApp(shinyApp(ui, server))
【问题讨论】:
-
list_initiators <- read.csv(...)在我的计算机上返回一个空数据集 -
@Waldi 很奇怪。链接正常raw.githubusercontent.com/Okssana/shiny_app_network/master/…
-
可能是编码问题:我没有看到链接中的字符
-
这是我看到的:“��������������������","��","",5
-
fileEncoding = "Windows-1251" , read.csv() 中也提到过
标签: javascript r d3.js htmlwidgets networkd3