RegularizationPlot/ui.R at master · timbook/RegularizationPlot · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
library(shiny)

shinyUI(fluidPage(tabsetPanel(
  tabPanel('LASSO Regression',
    sidebarLayout(
      sidebarPanel(
        br(),
        sliderInput('lambda_lasso', HTML('<h3>Tuning Parameter &lambda;:</h3>'),
                    min = 0, max = 2, value = 0.5, step = 0.05),
        br(),
        withMathJax(helpText("The LASSO minimizes: $$\\|\\mathbf{y - X\\beta}\\|^2_2 + \\lambda\\|\\beta\\|_1$$"))
      ),
      mainPanel(
        plotOutput('lassoplot')
      )
    )
  ),
  tabPanel('Ridge Regression',
    sidebarLayout(
      sidebarPanel(
        br(),
        sliderInput('lambda_ridge', HTML('<h3>Tuning Parameter &lambda;:</h3>'),
                    min = 0, max = 50, value = 5, step = 0.05),
        br(),
        withMathJax(helpText("Ridge regression minimizes: $$\\|\\mathbf{y - X\\beta}\\|^2_2 + \\lambda\\|\\beta\\|_2^2$$"))
      ),
      mainPanel(
        plotOutput('ridgeplot')
      )
    )
  ),
  tabPanel('Smoothing Spline',
    sidebarLayout(
      sidebarPanel(
        br(),
        sliderInput('gam_spar', HTML('<h3>Tuning Parameter (scaled version of &lambda;):</h3>'),
                    min = 0, max = 1.2, value = 0.5, step = 0.01),
        br(),
        withMathJax(helpText("The GAM minimizes: $$\\|\\mathbf{y} - f(\\mathbf{x})\\|^2_2 + \\lambda\\int (f'')^2$$"))
      ),
      mainPanel(
        plotOutput('smoothplot')
      )
    )
  )
)))