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[Простой пример shiny] #R #code #shiny
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library("mvtnorm") # для многомерного нормального | |
library("ggplot2") # для графиков | |
n_obs <- 100 | |
corr <- 0.5 | |
mu <- c(10, 15) | |
# ковариационная матрица | |
# 4 corr * 2 * 3 | |
# ? 9 | |
A <- matrix( | |
c(4, corr*6, corr*6, 9), | |
nrow = 2) | |
X <- rmvnorm(n_obs, mean = mu, sigma = A) | |
X | |
# goo.gl/Lxd4yL | |
qplot(X[, 2]) | |
qplot(x = X[, 1], y = X[, 2]) | |
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library("mvtnorm") # для многомерного нормального | |
library("ggplot2") # для графиков | |
shinyServer( function(input, output) { | |
update_x <- reactive({ | |
mu <- c(10, 15) | |
A <- matrix( | |
c(4, input$corr*6, input$corr*6, 9), nrow = 2) | |
X <- rmvnorm(input$n_obs, mean = mu, sigma = A) | |
X | |
}) | |
output$histogram <- renderPlot({ | |
X <- update_x() | |
qplot(X[, 2]) | |
}) | |
output$dotplot <- renderPlot({ | |
X <- update_x() | |
qplot(x = X[, 1], y = X[, 2]) | |
}) | |
}) |
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library("shiny") | |
shinyUI(pageWithSidebar( | |
headerPanel("Винни-Пух и многомерное нормальное"), | |
sidebarPanel( | |
sliderInput("n_obs", "Количество наблюдений", | |
min = 50, max = 500, step = 10, value = 100, | |
animate = TRUE), | |
sliderInput("corr", "Привет Таисии от Корреляции", | |
min = -1, max = 1, step = 0.1, value = 0.5, | |
animate = TRUE) | |
), | |
mainPanel( | |
plotOutput("histogram"), | |
plotOutput("dotplot") | |
) | |
)) |
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