model.txt
[LONGITUDINAL]
input = {ka, Tk0, V, k}
EQUATION:
D = 100
if t>Tk0
f0=D/(V*Tk0*k)*(1-exp(-k*Tk0))*exp(-k*(t-Tk0))
else
f0=D/(V*Tk0*k)*(1-exp(-k*t))
end
f1 = f0
f2 = D*ka/(V*(ka-k))*(exp(-k*t) - exp(-ka*t))
ui.R
library(shinydashboard)
sidebar <- dashboardSidebar(
hr(),
sidebarMenu(id="tabs",
menuItem("Plot", tabName = "plot", icon = icon("line-chart"), selected=TRUE),
menuItem("Codes", icon = icon("file-text-o"),
menuSubItem("Mlxtran", tabName = "mlxtran", icon = icon("angle-right")),
menuSubItem("ui.R", tabName = "ui", icon = icon("angle-right")),
menuSubItem("server.R", tabName = "server", icon = icon("angle-right")),
menuSubItem("shinymlxTools.R", tabName = "tools", icon = icon("angle-right"))
)
),
hr(),
fluidRow(
column(1),
column(9,
checkboxGroupInput("out1", label="plot", choices=c('f1','f2'), selected=c('f1','f2')),
selectInput("x1", label="v.s.",c('time','f1','f2')),hr(),
strong("add"),
checkboxInput("legend", label="legend", value=TRUE),
fluidRow(
column(5,checkboxInput("boxref", label="ref.")),
column(4,actionButton("butref", label = "Reset"))
),
hr(),
radioButtons("ilog", "scale", c("linear" = FALSE,"log" = TRUE), inline=TRUE)
)
)
)
body <- dashboardBody(
tabItems(
tabItem(tabName = "plot",
fluidRow(
box(width = 3, status = "primary",
sliderInput("ka", label="ka",value=0.5,min=0.1,max=1,step=0.1),
numericInput("Tk0", label="Tk0",value=2),
selectInput("k", label="k", choices=c(0.05,0.2,0.4),selected=0.2),
br()
),
box(width = 9, height=530, status = "primary",
plotOutput("plot")
)
)
),
tabItem(tabName = "mlxtran",
box( width = NULL, status = "primary", solidHeader = TRUE, title="model.txt",
pre(includeText("model.txt"))
)
),
tabItem(tabName = "ui",
box( width = NULL, status = "primary", solidHeader = TRUE, title="ui.R",
pre(includeText("ui.R"))
)
),
tabItem(tabName = "server",
box( width = NULL, status = "primary", solidHeader = TRUE, title="server.R",
pre(includeText("server.R"))
)
),
tabItem(tabName = "tools",
box( width = NULL, status = "primary", solidHeader = TRUE, title="server.R",
pre(includeText("shinymlxTools.R"))
)
)
)
)
dashboardPage(
dashboardHeader(title = "Compare PK models"),
sidebar,
body
)
server.R
# source("../../initMlxR.R")
library("mlxR")
library("shinydashboard")
library("reshape")
library("gridExtra")
source("shinymlxTools.R")
f <- list(name=c('f1','f2'), time=seq(0,20,by=0.1))
f <- list(f)
nf <- length(f)
info <- info_res(f)
server <- function(input, output) {
ref <- reactive({
input$butref
p <- list(name = c('ka', 'Tk0', 'V', 'k'),
value = isolate(c(input$ka, input$Tk0, 2, as.numeric(input$k))))
r <- simulx( model = 'model.txt',
parameter = p,
output = f)
ref <- merge_res(r,f)
return(ref)
})
res <- reactive({
p <- list(name = c('ka', 'Tk0', 'V', 'k'),
value = c(input$ka, input$Tk0, 2, as.numeric(input$k)))
r <- simulx( model = 'model.txt',
parameter = p,
output = f)
res <- merge_res(r,f)
return(res)
})
output$plot <- renderPlot({
res=res()
ref=ref()
gr.txt <- "grid.arrange("
for (j in (1:length(f))){
xj <- "time"
fj <- f[[j]]
name.fj <- fj$name
eval(parse(text=paste0("inputyj=input$out",j)))
i.plot=FALSE
if (!is.null(inputyj)){
ij <- which(name.fj %in% inputyj)
if (length(ij>0)){
eval(parse(text=paste0("inputxj=input$x",j)))
if (!is.null(inputxj))
xj <- inputxj
}
i.plot=TRUE
}
else if (is.null(inputyj) & length(f)==1){
ij=1
i.plot=TRUE
}
if (i.plot){
pl <- ggplotmlx()
nfj <- length(name.fj)
for (k in (1:nfj)){
if (k %in% ij){
if (input$boxref==TRUE){
pj <- paste0('pl <- pl + geom_path(data=ref, aes(x=',xj,',y=',name.fj[k],'),colour="grey",size=0.75)')
eval(parse(text=pj))
}
pj <- paste0('pl <- pl + geom_path(data=res, aes(x=',xj,',y=',name.fj[k],',colour="',info[[j]]$colour[k],'"),size=0.75)')
eval(parse(text=pj))
}
}
pl <- pl + scale_colour_manual(values=info[[j]]$values, labels=info[[j]]$labels)
if (length(ij)>1){
if (!is.null(input$legend) && input$legend==FALSE)
pl <- pl + theme(legend.position="none")
else
pl <- pl + guides(colour=guide_legend(title=NULL)) + theme(legend.position=c(.9, .8))
pl <- pl + ylab("")
}else{
pl <- pl + theme(legend.position="none")
}
if (input$ilog==TRUE)
pl=pl + scale_y_log10()
eval(parse(text=paste0("pl",j," <- pl")))
gr.txt <- paste0(gr.txt,"pl",j,",")
}
}
gr.txt <- paste0(gr.txt,"ncol=1)")
eval(parse(text=gr.txt))
}, height = 500)
}
server.R
gg_color_hue <- function(n) {
hues = seq(15, 375, length=n+1)
hcl(h=hues, l=65, c=100)[1:n]}
info_res <- function(f){
if (!is.null(names(f)))
f <- list(f)
nf <- length(f)
info <- list()
for (k in (1:nf)){
fk <- f[[k]]
nk <- length(fk$name)
lk <- as.character(1:nk)
valk <- gg_color_hue(nk)
names(valk) <- lk
labk <- fk$name
names(labk) <- lk
info[[k]] <- list(values=valk, labels=labk, colour=lk)
}
return(info)
}
merge_res <- function(r1,f){
r2 <- list()
nf <- length(f)
for (j in (1:nf)){
fj <- f[[j]]
nj <- length(fj$name)
r <- r1[[fj$name[1]]]
if (nj>1){
for (k in (2:nj)){
rk <- r1[[fj$name[k]]]
r <- merge(r,rk)
}
}
r2[[j]] <- r
}
r3 <- r2[[1]]
if (nf>1){
for (k in (2:nf))
r3 <- merge(r3,r2[[k]])
}
return(r3)
}