Update app.R

app.R

@@ -1,12 +1,3 @@
-#
-# This is a Shiny web application. You can run the application by clicking
-# the 'Run App' button above.
-#
-# Find out more about building applications with Shiny here:
-#
-#    https://shiny.posit.co/
-#
-
 library(shiny)
 library(dplyr)
 library(data.table)
@@ -14,75 +5,109 @@ library(xgboost)
 library(caret)
 # Define UI for application that draws a histogram
 ui <- fluidPage(
-
-    # Application title
-    titlePanel("TimStuff Fastball Calculator"),
-
-    # Sidebar with a slider input for number of bins 
-    sidebarLayout(
-        sidebarPanel(
-            selectInput("phand",
-                        "Hand",
-                        c("R","L")),
-            numericInput("velo",
-                        "Velocity /mph",90),
-            numericInput("ivb",
-                         "Induced Vertical Break (IVB) /in.",16),
-            numericInput("hb",
-                         "Horizontal Break (HB) /in. (Pitcher's Perspective)",6),
-            numericInput("spinrate",
-                         "Spin Rate /rpm",2300),
-            numericInput("ext",
-                         "Extension /ft",6),
-            numericInput("spinaxisdiff",
-                         "Spin Axis Difference (-180 - 180) /degrees",0),
-            numericInput("x0","Horizntal Release Point /ft. (Batter's Perspective)",0),
-            numericInput("z0","Vertical Release Point /ft. (Batter's Perspective)", 0),
-            
-            
-        ),
-
-        # Show a plot of the generated distribution
-        mainPanel(
-           verbatimTextOutput("stuff")
-
-        )
+  
+  # Application title
+  titlePanel("TimStuff Fastball/Offspeed Calculator"),
+  
+  # Sidebar with a slider input for number of bins 
+  sidebarLayout(
+    sidebarPanel(
+      selectInput("pitch","Pitch Type",c("Fastball","Offspeed")),
+      selectInput("phand",
+                  "Hand",
+                  c("R","L")),
+      numericInput("velo",
+                   "Velocity /mph",90),
+      numericInput("ivb",
+                   "Induced Vertical Break (IVB) /in.",16),
+      numericInput("hb",
+                   "Horizontal Break (HB) /in. (Pitcher's Perspective)",6),
+      numericInput("spinrate",
+                   "Spin Rate /rpm",2300),
+      numericInput("ext",
+                   "Extension /ft",6),
+      numericInput("spinaxisdiff",
+                   "Spin Axis Difference (-180 - 180) /degrees",0),
+      numericInput("x0","Horizntal Release Point /ft. (Batter's Perspective)",0),
+      numericInput("z0","Vertical Release Point /ft. (Batter's Perspective)", 0),
+      
+      
+    ),
+    
+    # Show a plot of the generated distribution
+    mainPanel(
+      verbatimTextOutput("stuff")
+      
     )
+  )
 )
 
 # Define server logic required to draw a histogram
 server <- function(input, output) {
-
-    output$stuff <- renderText({
-       data <- as.data.frame(5)
-       setnames(data,"5","start_speed")
-       data$start_speed <- input$velo
-       data$IVB <- input$ivb
-       if(input$phand == "L"){
-         data$HB <- input$hb * -1
-       }
-       else{
-       data$HB <- input$hb
-       }
-       data$EAA <- input$ext / 6.3
-       if(input$phand == "L"){
-         data$x0 <- input$x0 * -1
-       }
-       else{
-         data$x0 <- input$x0
-       }
-       data$z0 <- input$z0
-       data$spin_rate <- input$spinrate
-       data$SADiff <- input$spinaxisdiff
-       
-       data <- as.matrix(data)
-       FBMod <- xgb.load('FB.model')
-       prediction <-predict(FBMod,data)
-       TimStuff <- (50 - (prediction - -0.0011801)/ 0.007989927 * 10)
-       # FBMod <- xgb.load("FB.model")
-       # vip(FBMod)
-       return(paste("TimStuff: ",TimStuff, "20-80 Scale, 50 is Average 1 SD is 10",sep = "\n"))
-    })
+  observeEvent(input$pitch,{
+  if(input$pitch == "Offspeed"){
+  output$stuff <- renderText({
+    data <- as.data.frame(5)
+    setnames(data,"5","start_speed")
+    data$start_speed <- input$velo
+    data$IVB <- input$ivb
+    if(input$phand == "L"){
+      data$HB <- input$hb * -1
+    }
+    else{
+      data$HB <- input$hb
+    }
+    data$EAA <- input$ext / 6.3
+    if(input$phand == "L"){
+      data$x0 <- input$x0 * -1
+    }
+    else{
+      data$x0 <- input$x0
+    }
+    data$z0 <- input$z0
+    data$spin_rate <- input$spinrate
+    data$SADiff <- input$spinaxisdiff
+    
+    data <- as.matrix(data)
+    OffMod <- xgb.load('Off.model')
+    prediction <-predict(OffMod,data)
+    TimStuff <- (50 - (prediction - -0.002239657)/ 0.01043216 * 10)
+    
+    return(paste("TimStuff: ",TimStuff, "20-80 Scale, 50 is Average 1 SD is 10",sep = "\n"))
+  })
+  }
+  if(input$pitch == "Fastball"){
+  output$stuff <- renderText({
+    data <- as.data.frame(5)
+    setnames(data,"5","start_speed")
+    data$start_speed <- input$velo
+    data$IVB <- input$ivb
+    if(input$phand == "L"){
+      data$HB <- input$hb * -1
+    }
+    else{
+      data$HB <- input$hb
+    }
+    data$EAA <- input$ext / 6.3
+    if(input$phand == "L"){
+      data$x0 <- input$x0 * -1
+    }
+    else{
+      data$x0 <- input$x0
+    }
+    data$z0 <- input$z0
+    data$spin_rate <- input$spinrate
+    data$SADiff <- input$spinaxisdiff
+    
+    data <- as.matrix(data)
+    FBMod <- xgb.load('FB.model')
+    prediction <-predict(FBMod,data)
+    TimStuff <- (50 - (prediction - -0.0011801)/ 0.007989927 * 10)
+    
+    return(paste("TimStuff: ",TimStuff, "20-80 Scale, 50 is Average 1 SD is 10",sep = "\n"))
+  })
+  }
+  })
 }
 
 # Run the application