Controls

app.R

    sidebarLayout(
       # Sidebar ----
       sidebarPanel(
-      ),
+        sliderInput("secyears", "Date range", 
+                    min=1990, max=2010, value=c(1990, 2010),
+                    sep="", step=1),
+        selectInput("secscale", "Scale", 
+                    choices=c("y", "sqrt(y)", "log10(y)"), selected="y"),
+        checkboxGroupInput("secSectors", "Sectors", 
+                           choices=sectors.a, selected = sectors.a),
+        checkboxInput("seclegend", "Show legend", value=TRUE),
+        checkboxInput("secminc", "Set minimum", value=FALSE),
+        conditionalPanel("input.secminc",
+                         numericInput("secmin", label=NULL, value=NA)),
+        checkboxInput("secmaxc", "Set maximum", value=FALSE),
+        conditionalPanel("input.secmaxc",
+                         numericInput("secmax", label=NULL, value=NA)),
+      width=3),
       
       # Main panel ----
       mainPanel(
         tabsetPanel(id="tabs",
-                   tabPanel("by-sector", 
+                   tabPanel("By Sector", 
                             plotOutput("secPlot")
                             )
                     )
   SecOverall <- reactive({
     st <- gather(Sector.Tot, key="Year",
                  value="Co2eqv", as.character(1990:2010)) %>% 
-      mutate(Year = as.numeric(Year), 
-             Sector = factor(Sector, levels=unique(Sector)))
-    # Add logic for filtering out years, sectors here
+      mutate(Year = as.integer(Year), 
+             Sector = factor(Sector, levels=unique(Sector))) %>%
+    # Logic for filtering out years, sectors here
+      filter(Year %in% input$secyears[1]:input$secyears[2], 
+             Sector %in% input$secSectors) %>%
+      mutate(Year = as.Date(paste0(Year, "-01-01")))
     return(st)
   })
    
   output$secPlot <- renderPlot({
     sov <- SecOverall()
-    ggplot(sov, aes(x=Year, y=Co2eqv, linetype=Sector, color=Sector)) + 
-      geom_line(size=1.5) + guides(linetype=guide_legend(keywidth = 3)) +
-      scale_y_log10() -> s.p
+    ggplot(sov, aes(x=Year, 
+                    y=Co2eqv, linetype=Sector, color=Sector)) -> s.p
+    s.p + geom_line(size=1.5, na.rm=TRUE) -> s.p
+    s.p + guides(linetype=guide_legend(keywidth = 5)) -> s.p
+    s.p + theme_linedraw() -> s.p
+    s.p + theme(legend.position = "right", 
+                legend.title = element_blank()) -> s.p
+    s.p + ylab("CO₂ equivalent (kt)") -> s.p
+    if (!input$seclegend) {
+      s.p + theme(legend.position="none") -> s.p
+    }
+    mmx <- c(ifelse(input$secminc, input$secmin, NA),
+             ifelse(input$secmaxc, input$secmax, NA))
+    if (input$secscale == "sqrt(y)") {
+      s.p + scale_y_sqrt(breaks=pretty_breaks(n=5), limits=mmx) -> s.p
+    } else if (input$secscale == "log10(y)") {
+      s.p + scale_y_log10(breaks=pretty_breaks(n=5), limits=mmx) -> s.p
+    } else {
+      s.p + scale_y_continuous(breaks=pretty_breaks(n=5), limits=mmx) -> s.p
+    }
     return(s.p)
   })
 }