Created
November 11, 2012 09:39
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Korea Oil Price plot with Shiny
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| library(shiny) | |
| library(ggplot2) | |
| library(reshape2) | |
| library(scales) | |
| #data load from dropbox | |
| load(url("http://dl.dropbox.com/u/8686172/oil_price.RData")) | |
| shinyServer(function(input, output) { | |
| output$oilPlot <- reactivePlot(function() { | |
| kinds <- c() | |
| if(input$p_gasolin == TRUE){ | |
| kinds <- c(kinds, "premium gasolin") | |
| } | |
| if(input$gasolin== TRUE){ | |
| kinds <- c(kinds, "gasolin") | |
| } | |
| if(input$diesel== TRUE){ | |
| kinds <- c(kinds, "diesel") | |
| } | |
| if(input$kerosene== TRUE){ | |
| kinds <- c(kinds, "kerosene") | |
| } | |
| if(length(kinds) == 0) stop(enc2utf8("최소 하나의 유종을 선택하세요!")) | |
| oil_price_tail <- tail(oil_price, input$obs) | |
| oil_reshpae <- melt(oil_price_tail, id.vars=c("date")) | |
| names(oil_reshpae) <- c("date", "kind", "price") | |
| oil_subset <- subset(oil_reshpae, kind %in% kinds ) | |
| oil_subset$kind <- factor(oil_subset$kind, levels=c("premium gasolin","gasolin", "diesel","kerosene"), | |
| labels=enc2utf8(c("고급휘발유", "보통휘발유", "경유", "등유"))) | |
| p <- ggplot(oil_subset, aes(date,price)) + geom_line(aes(colour=kind)) + | |
| scale_x_date(breaks = date_breaks("3 month")) + | |
| theme(axis.text.x=element_text(angle=45)) + scale_color_discrete(enc2utf8("유종")) + | |
| xlab(enc2utf8("날짜")) + ylab(enc2utf8("가격(원)")) | |
| print(p) | |
| }) | |
| }) | |
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| library(shiny) | |
| # bugs on label on checkboxInput to display Korean | |
| # a<-enc2utf8("고급휘발유") | |
| # b<-enc2utf8("보통휘발유") | |
| # c<-enc2utf8("자동차경유") | |
| # d<-enc2utf8("실내등유") | |
| shinyUI(pageWithSidebar( | |
| headerPanel(enc2utf8("유가 시계열 그래프(2008.4.14 ~ 2012.11.08")), | |
| sidebarPanel( | |
| sliderInput("obs", | |
| enc2utf8("관측수(마지막 n개):"), | |
| min = 7, | |
| max = 1670, | |
| value = 670), | |
| wellPanel(p(strong(enc2utf8("유종"))), | |
| checkboxInput(inputId = "p_gasolin", label = "Premium Gasolin", value = FALSE), | |
| checkboxInput(inputId = "gasolin", label = "Gasolin", value = TRUE), | |
| checkboxInput(inputId = "diesel", label = "Diesel", value = TRUE), | |
| checkboxInput(inputId = "kerosene", label = "Kerosene", value = FALSE) | |
| )), | |
| mainPanel( | |
| plotOutput("oilPlot") | |
| ) | |
| )) |
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bugs on label on checkboxInput to display Korean