【发布时间】:2017-09-22 19:32:25
【问题描述】:
我正在开发一个闪亮的应用程序,我需要输入值才能显示在函数中。
我要做的是以某种方式从输入中提取名称和值,例如CL=4、V1=3,然后将它们提供给我需要稍后提供给服务器中的模型的函数。我正在研究的模型只采用函数格式。下面是我的代码。
用户界面:
#Set up
rm(list=ls())
library(shiny)
library(shinydashboard)
library(shinyBS)
library(dplyr)
#Design sidebar
sidebar <- dashboardSidebar(width = 200, collapsed=TRUE,
sidebarMenu(id="tabs",
menuItem("Simulations", tabName = "Sims", icon = icon("line-chart"), selected=TRUE),
menuItem("Placeholder", tabName = "Place", icon = icon("square-o"))
))
#Design body
body <- dashboardBody(
tabItems(
tabItem(tabName = "Sims",
box(collapsible=TRUE, width = 3, status = "success", solidHeader = T, title="Select Your Model",
radioButtons(inputId="PK_Model", label = "PK Model", selected="One_Comp",
choices = c("1 Compartment"="One_Comp", "2 Compartment"="Two_Comp")),
radioButtons(inputId="Clearance_Model",label ="Clearance Mechanism", selected="Linear",
choices = c("Linear"="Linear"))),
box(collapsible=TRUE, status = "success", solidHeader = T, title="Enter Parameter Estimates",
conditionalPanel(condition = "input.Clearance_Model == 'Linear'",
numericInput(label="Clearance (Linear) (CL; L/day)", inputId="CL", min = 0, max = NA, value = 0),
numericInput(label="Central volume of distribution (V1; L)", inputId="V1", min = 0, max = NA, value = 0)),
conditionalPanel(condition = "input.PK_Model == 'Two_Comp'",
numericInput(label="Inter-compartment clearance (Q; L/day)", inputId="Q", min = 0, max = NA, value = 0),
numericInput(label="Peripheral volume of distribution (V2; L)", inputId="V2", min = 0, max = NA, value = 0))),
box(collapsible=T, width=2, status = "success", solidHeader = T, title="Run",
actionButton('gosim','Run Sims',class='btn btn-info', icon=icon('play-circle-o','fg-lg'))),
box(width=5, status = "success", solidHeader = T, title="Simulated", textOutput('testprint')))))
#Show title and the page (includes sidebar and body)
dashboardPage(skin=c("blue"),
dashboardHeader(titleWidth=900, title = "Shiny Test"),
sidebar, body)
更新: 按照下面 PoGibas 的回答,我将服务器代码更新为以下,但结果看起来不像我需要的。
Server:
library(shiny)
library(shinydashboard)
library(shinyBS)
library(RxODE)
library(parallel)
library(ggplot2)
test <- function (N1, N2, N3, N4) {
mypar <- function(lKa, lKdeg, N1, N2, N3, N4){
Ka=exp(lKa)
Kdeg=exp(lKdeg)
V1=N1
CL=N2
Q=N3
V2=N4}
return(mypar)
}
shinyServer(function(input, output, session){
mypar <-eventReactive(input$goSimPH20, {
N1=as.numeric(input$V1)
N2=as.numeric(input$CL)
N3=as.numeric(input$Q)
N4=as.numeric(input$V2)
par1 = test(N1, N2, N3, N4)
return(par1)
})
output$testprint <- renderText(mypar())
})
当我在服务器中调用 mypar() 时,我需要的结果如下:
test <- function (lKa, lKdeg, V1, CL, Q, V2) {
Ka=exp(lKa)
Kdeg=exp(lKdeg)
V1=xx
V2=xx
CL=xx
Q=xx
}
xx 可以是用户界面中任何用户提供的值。
【问题讨论】:
-
如果我的解决方案有助于解决您的问题,您可以接受答案,以便我们关闭问题:)
-
请将您的代码重写为最小示例。 stackoverflow.com/help/mcve
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@Krina 如果它有助于解决您的问题,请您接受答案吗?