Created
January 24, 2013 08:21
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| library(XML) | |
| # 負荷軽減のため | |
| if (length(dir(".", "^data.Rda$")) == 0) { | |
| data <- xmlToDataFrame("http://www3.city.sabae.fukui.jp/xml/population/population.xml", | |
| stringsAsFactors=FALSE, | |
| colClasses=c("integer","integer","character", | |
| "numeric","numeric","numeric", | |
| "numeric","character")) | |
| save("data", file = "data.Rda") | |
| } else { | |
| load("data.Rda") | |
| } |
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| library(shiny) | |
| library(ggplot2) | |
| library(ggthemes) | |
| source('load_data.R') | |
| # Define server logic required to plot various variables against mpg | |
| shinyServer(function(input, output) { | |
| output$main_plot <- reactivePlot(function() { | |
| ge <- switch(input$Geom, | |
| "点" = geom_point(), | |
| "線" = geom_line(), | |
| "点と線" = list(geom_line(), geom_point()), | |
| "棒" = geom_bar(aes_string(fill = input$Color), stat = "identity"), | |
| "エリア" = geom_area(aes(colour = NULL))) | |
| p <- ggplot(data, aes_string(x = input$X, y = input$Y, colour = input$Color)) + ge + theme_wsj() | |
| print(p) | |
| }) | |
| }) |
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| library(shiny) | |
| source('load_data.R') | |
| # UIの定義 | |
| shinyUI( | |
| pageWithSidebar( | |
| headerPanel("鯖江市のXMLでシャイニー!!"), | |
| sidebarPanel( | |
| p("データは", | |
| a("鯖江市のオープンデータ化", href = "http://www.city.sabae.fukui.jp/pageview.html?id=11552"), | |
| "プロジェクトよりお借りしています。"), | |
| p("データの読み込みは", | |
| a("奥村先生の記事", href = "http://oku.edu.mie-u.ac.jp/~okumura/stat/xml.html"), | |
| "を使わせて頂きました。"), | |
| p("なお、サーバ負荷軽減のため、ページ読み込み時にデータのダウンロードは行なっていませんが、リアルタイムに変化するようなデータの場合は、その変化を反映することも可能です。"), | |
| selectInput("X", "X軸の列:", choices = names(data)), | |
| selectInput("Y", "Y軸の列:", choices = names(data)), | |
| selectInput("Color", "色の列:", choices = names(data)), | |
| selectInput("Geom", "グラフの種類:", choices = c("点", "線", "点と線", "棒", "エリア")) | |
| ), | |
| mainPanel( | |
| plotOutput("main_plot") | |
| ) | |
| ) | |
| ) |
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