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Browse files- include.html +0 -0
- server.R +150 -0
- ui.R +85 -0
include.html
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server.R
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| 1 |
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library(shiny)
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require(gamlss)
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shinyServer(function(input, output, session){
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four.hist <- function(k, f, p) {
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par(cex.main=0.95)
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inFile <- input$file1
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if(is.null(inFile))
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dt <- cars
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else dt <- read.csv(inFile$datapath, header=input$header,
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sep=input$sep)
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mod <- fitDist(dt[, p], type=f, k=k)
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par(mfrow=c(2, 2), bg='gray98')
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for(i in 1:4){
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denst <- density(dt[, p])
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res <- histDist(dt[, p], family=names(mod$fits)[i],
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main='',
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ylab='Density',
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xlab=p, las=1,
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line.wd=3,
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line.ty=1,
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line.col='dodgerblue2',
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ylim=c(0, (2 * max(denst$y))))
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gaic <- round(-2 * logLik(res) + k * length(res$parameters), 2)
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title(main=paste(i, ')', names(mod$fits)[i],
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'distribution with GAIC=', gaic),
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col.main='blue4')
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param <- c('mu', 'sigma', 'nu', 'tau')
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np <- length(res$parameters)
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fun1 <- function(x) eval(parse(text=x))
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hat.param <- sapply(as.list(paste('res$', param[1:np], sep='')), fun1)
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hat.param <- round(hat.param, digits=2)
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txt <- paste('hat(', param[1:np], ')==', hat.param, sep='')
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txt <- paste(txt, collapse=', ')
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legend('topright', bty='n',
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legend=eval(parse(text=paste('expression(', txt, ')'))))
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}
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}
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four.hist.qqplot <- function(k, f, p) {
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par(cex.main=0.95)
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inFile <- input$file1
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if(is.null(inFile))
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dt <- cars
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else dt <- read.csv(inFile$datapath, header=input$header,
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sep=input$sep)
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mod <- fitDist(dt[, p], type=f, k=k)
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par(mfrow=c(4, 2), bg='gray98')
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for(i in 1:4){
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denst <- density(dt[, p])
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res <- histDist(dt[, p], family=names(mod$fits)[i],
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main='',
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ylab='Density',
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xlab=p, las=1,
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line.wd=3,
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line.ty=1,
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line.col='dodgerblue2',
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ylim=c(0, (2 * max(denst$y))))
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gaic <- round(-2 * logLik(res) + k * length(res$parameters), 2)
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title(main=paste(i, ')', names(mod$fits)[i],
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'distribution with GAIC=', gaic),
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col.main='blue4')
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param <- c('mu', 'sigma', 'nu', 'tau')
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np <- length(res$parameters)
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fun1 <- function(x) eval(parse(text=x))
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hat.param <- sapply(as.list(paste('res$', param[1:np], sep='')), fun1)
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hat.param <- round(hat.param, digits=2)
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txt <- paste('hat(', param[1:np], ')==', hat.param, sep='')
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txt <- paste(txt, collapse=', ')
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legend('topright', bty='n',
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legend=eval(parse(text=paste('expression(', txt, ')'))))
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#qqnorm(runif(10))
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n <- dim(dt)[1]
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a <- paste('q', names(mod$fits)[i], sep='')
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a <- paste(a, '(ppoints(n),', sep='')
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a <- paste(a, paste(hat.param, collapse=', '), ')')
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par(bty='n', col.axis='blue4', col.lab='blue4')
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qqplot(y=dt[, p], x=eval(parse(text=a)),
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xlab=a, ylab=p, col='blue4')
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axis(side=1, col='blue4')
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axis(side=2, col='blue4')
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}
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}
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observe({
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inFile <- input$file1
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if(is.null(inFile))
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dt <- cars
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else dt <- read.csv(inFile$datapath, header=input$header,
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sep=input$sep)
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updateSelectInput(session, "response",
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choices = names(dt))
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updateSelectInput(session, "familia")
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})
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output$data_table <- renderTable({
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inFile <- input$file1
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if(is.null(inFile))
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dt <- cars
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else dt <- read.csv(inFile$datapath, header=input$header,
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sep=input$sep)
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dt
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})
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output$distPlot1 <- renderPlot({
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four.hist(input$k, input$familia, input$response)
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})
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output$distPlot2 <- renderPlot({
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four.hist.qqplot(input$k, input$familia, input$response)
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})
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output$downplot1 <- downloadHandler(
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filename = function() {
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paste("four_dist", input$type_plot, sep=".")
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},
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# content is a function with argument file. content writes the plot to the device
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content = function(file) {
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if(input$type_plot == "png")
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png(file) # open the png device
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else
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pdf(file) # open the pdf device
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four.hist(input$k, input$familia, input$response) # draw the plot
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dev.off() # turn the device off
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}
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)
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output$downplot2 <- downloadHandler(
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filename = function() {
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paste("four_dist", input$type_plot, sep=".")
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},
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# content is a function with argument file. content writes the plot to the device
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content = function(file) {
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if(input$type_plot == "png")
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png(file) # open the png device
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| 139 |
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else
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pdf(file) # open the pdf device
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four.hist.qqplot(input$k, input$familia, input$response) # draw the plot
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dev.off() # turn the device off
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}
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)
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output$markdown <- renderUI({
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| 148 |
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HTML(markdown::markdownToHTML(knit('Teoria.Rmd', quiet = TRUE)))
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| 149 |
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})
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})
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ui.R
ADDED
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@@ -0,0 +1,85 @@
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| 1 |
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library(shiny)
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| 2 |
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library(knitr)
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| 3 |
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| 4 |
+
shinyUI(pageWithSidebar(
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| 5 |
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headerPanel( "Explorando la distribuci贸n que mejor se ajusta a una variable"),
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| 6 |
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sidebarPanel(
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| 7 |
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h6("Esta aplicaci贸n sirve para identificar
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| 8 |
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las cuatro distribuciones
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| 9 |
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que mejor se ajustan a una variable de
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| 10 |
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una base de datos ingresada por el usuario."),
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h6('Como ejemplo se muestran los resultados obtenidos para
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la variable speed de la base de datos cars de R.'),
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h4('Para usar la aplicaci贸n haga lo siguiente:'),
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| 14 |
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h6('1. Suba su base,'),
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h6('2. Indique el tipo de separaci贸n de su base,'),
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| 16 |
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h6('3. Seleccione la variable de inter茅s.'),
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| 17 |
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fileInput(inputId='file1', label='Use el bot贸n siguiente para
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| 18 |
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cargar la base de datos.',
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| 19 |
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accept = c(
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| 20 |
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'text/csv',
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| 21 |
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'text/comma-separated-values',
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| 22 |
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'text/tab-separated-values',
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| 23 |
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'text/plain',
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| 24 |
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'.csv',
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| 25 |
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'.tsv'
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| 26 |
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)),
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| 27 |
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checkboxInput('header', label='驴Tiene encabezado la base
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| 28 |
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de datos?', value=TRUE),
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| 29 |
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selectInput(inputId="sep", label="驴Cual es la separaci贸n de sus datos?",
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| 30 |
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choices=list('tab'='\t', ','=',', ';'=';', 'space'=' '),
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| 31 |
+
selected=';'),
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| 32 |
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selectInput("response", label="Seleccione la variable
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| 33 |
+
de la base de datos", choices=""),
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| 34 |
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selectInput("familia", "Seleccione la familia a la cual pertenece
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| 35 |
+
la variable de inter茅s:",
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| 36 |
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choice=list("Reales positivos" = "realplus",
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| 37 |
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"Reales" = "realAll",
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| 38 |
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"Reales entre 0 y 1" = "real0to1",
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| 39 |
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"Conteos" = "counts",
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| 40 |
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"Binomiales" = "binom")),
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| 41 |
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sliderInput("k", 'Ingrese una penalizaci贸n \\( k \\) para
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| 42 |
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penalizar el exceso de par谩metros
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| 43 |
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en el calculo del \\(GAIC=-2 \\times logLik + k \\times df\\)
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| 44 |
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donde \\( df \\) es n煤mero de parametros
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| 45 |
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del modelo.',
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min=2,
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max=20,
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| 48 |
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value=2,
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step=1,
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| 50 |
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animate=TRUE),
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| 51 |
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radioButtons(inputId = "type_plot",
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| 52 |
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label = "Select the file type to download the plot",
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| 53 |
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choices = list("pdf", "png")),
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| 54 |
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br(),
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| 55 |
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p("This app was created by Semillero de R at Universidad Nacional
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| 56 |
+
de Colombia:"),
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| 57 |
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tags$a(href="https://srunal.github.io/", "https://srunal.github.io/")),
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| 58 |
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mainPanel(
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| 59 |
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tabsetPanel(type ="pills",
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| 60 |
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tabPanel("Selected distributions I",
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| 61 |
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h4('A continuaci贸n se presenta el histograma para
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| 62 |
+
la variable de inter茅s
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| 63 |
+
con la curva de densidad para cada distribuci贸n.'),
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| 64 |
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plotOutput("distPlot1", width="700px", height="600px"),
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| 65 |
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downloadButton(outputId = "downplot1", label = "Download the plot")
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| 66 |
+
),
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| 67 |
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tabPanel("Selected distributions II",
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| 68 |
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h4('A continuaci贸n se presenta el histograma para
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| 69 |
+
la variable de inter茅s
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| 70 |
+
con la curva de densidad para cada distribuci贸n y
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| 71 |
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el qqplot asociado.'),
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| 72 |
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plotOutput("distPlot2", width="700px", height="800px"),
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| 73 |
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downloadButton(outputId = "downplot2", label = "Download the plot")
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| 74 |
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),
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| 75 |
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tabPanel("Data",
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| 76 |
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"A continuacion la base de datos ingresada por el usuario.",
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| 77 |
+
uiOutput('data_table')),
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| 78 |
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#tabPanel("Goodness of fit test"),
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| 79 |
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tabPanel("Theory", includeHTML("include.html"))
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| 80 |
+
)
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| 81 |
+
)
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| 82 |
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)
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| 83 |
+
)
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| 84 |
+
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