Add marginal plots, filtering by species

app.R

@@ -4,14 +4,20 @@ library(dplyr)
 library(ggplot2)
 
 df <- readr::read_csv("penguins.csv")
+species <- unique(df$Species)
 
 ui <- page_fillable(theme = bs_theme(bootswatch = "minty"),
   layout_sidebar(fillable = TRUE,
     sidebar(
       varSelectInput("xvar", "X variable", df, selected = "Bill Length (mm)"),
       varSelectInput("yvar", "Y variable", df, selected = "Bill Depth (mm)"),
+      checkboxGroupInput(
+        "species", "Filter by species", species, selected = species
+      ),
+      hr(),
+      checkboxInput("by_species", "Show species", TRUE),
+      checkboxInput("show_margins", "Show marginal plots", TRUE),
       checkboxInput("smooth", "Add smoother"),
-      checkboxInput("species", "By species", TRUE)
     ),
     plotOutput("scatter")
   )
@@ -19,13 +25,29 @@ ui <- page_fillable(theme = bs_theme(bootswatch = "minty"),
 
 server <- function(input, output, session) {
   subsetted <- reactive({
-    df |> select(!!input$xvar, !!input$yvar, "Species")
+    req(input$species)
+    df |> filter(Species %in% input$species)
   })
   
   output$scatter <- renderPlot({
-    ggplot(subsetted(), aes(!!input$xvar, !!input$yvar)) +
-      geom_point(if (input$species) aes(color=Species)) +
+    p <- ggplot(subsetted(), aes(!!input$xvar, !!input$yvar)) + list(
+      theme(legend.position = "bottom"),
+      if (input$by_species) aes(color=Species),
+      geom_point(),
       if (input$smooth) geom_smooth()
+    )
+
+    if (input$show_margins) {
+      p <- ggExtra::ggMarginal(
+        p,
+        type = if (input$by_species) "density" else "histogram",
+        margins = "both",
+        size = 8,
+        groupColour = input$by_species,
+        groupFill = input$by_species
+      )
+    }
+    p
   }, res = 100)
 }
 

renv.lock

@@ -187,6 +187,24 @@
       ],
       "Hash": "f20c47fd52fae58b4e377c37bb8c335b"
     },
+    "colourpicker": {
+      "Package": "colourpicker",
+      "Version": "1.2.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "ggplot2",
+        "htmltools",
+        "htmlwidgets",
+        "jsonlite",
+        "miniUI",
+        "shiny",
+        "shinyjs",
+        "utils"
+      ],
+      "Hash": "ca4d99d106687d68392ffe270081bfc0"
+    },
     "commonmark": {
       "Package": "commonmark",
       "Version": "1.9.0",
@@ -274,6 +292,17 @@
       ],
       "Hash": "bb0eec2fe32e88d9e2836c2f73ea2077"
     },
+    "evaluate": {
+      "Package": "evaluate",
+      "Version": "0.20",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "methods"
+      ],
+      "Hash": "4b68aa51edd89a0e044a66e75ae3cc6c"
+    },
     "fansi": {
       "Package": "fansi",
       "Version": "1.0.4",
@@ -334,6 +363,27 @@
       ],
       "Hash": "15e9634c0fcd294799e9b2e929ed1b86"
     },
+    "ggExtra": {
+      "Package": "ggExtra",
+      "Version": "0.10.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "R6",
+        "colourpicker",
+        "ggplot2",
+        "grDevices",
+        "grid",
+        "gtable",
+        "miniUI",
+        "scales",
+        "shiny",
+        "shinyjs",
+        "utils"
+      ],
+      "Hash": "f505d7f3058403787145fe0f7b1ff84c"
+    },
     "ggplot2": {
       "Package": "ggplot2",
       "Version": "3.4.2",
@@ -385,6 +435,17 @@
       ],
       "Hash": "b44addadb528a0d227794121c00572a0"
     },
+    "highr": {
+      "Package": "highr",
+      "Version": "0.10",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "xfun"
+      ],
+      "Hash": "06230136b2d2b9ba5805e1963fa6e890"
+    },
     "hms": {
       "Package": "hms",
       "Version": "1.1.3",
@@ -416,6 +477,21 @@
       ],
       "Hash": "ba0240784ad50a62165058a27459304a"
     },
+    "htmlwidgets": {
+      "Package": "htmlwidgets",
+      "Version": "1.6.2",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "grDevices",
+        "htmltools",
+        "jsonlite",
+        "knitr",
+        "rmarkdown",
+        "yaml"
+      ],
+      "Hash": "a865aa85bcb2697f47505bfd70422471"
+    },
     "httpuv": {
       "Package": "httpuv",
       "Version": "1.6.9",
@@ -462,6 +538,22 @@
       ],
       "Hash": "a4269a09a9b865579b2635c77e572374"
     },
+    "knitr": {
+      "Package": "knitr",
+      "Version": "1.42",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "evaluate",
+        "highr",
+        "methods",
+        "tools",
+        "xfun",
+        "yaml"
+      ],
+      "Hash": "8329a9bcc82943c8069104d4be3ee22d"
+    },
     "labeling": {
       "Package": "labeling",
       "Version": "0.4.2",
@@ -560,6 +652,18 @@
       ],
       "Hash": "18e9c28c1d3ca1560ce30658b22ce104"
     },
+    "miniUI": {
+      "Package": "miniUI",
+      "Version": "0.1.1.1",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "htmltools",
+        "shiny",
+        "utils"
+      ],
+      "Hash": "fec5f52652d60615fdb3957b3d74324a"
+    },
     "munsell": {
       "Package": "munsell",
       "Version": "0.5.0",
@@ -739,6 +843,30 @@
       ],
       "Hash": "dc079ccd156cde8647360f473c1fa718"
     },
+    "rmarkdown": {
+      "Package": "rmarkdown",
+      "Version": "2.21",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "bslib",
+        "evaluate",
+        "fontawesome",
+        "htmltools",
+        "jquerylib",
+        "jsonlite",
+        "knitr",
+        "methods",
+        "stringr",
+        "tinytex",
+        "tools",
+        "utils",
+        "xfun",
+        "yaml"
+      ],
+      "Hash": "493df4ae51e2e984952ea4d5c75786a3"
+    },
     "rsconnect": {
       "Package": "rsconnect",
       "Version": "0.8.29",
@@ -830,6 +958,19 @@
       ],
       "Hash": "c2eae3d8c670fa9dfa35a12066f4a1d5"
     },
+    "shinyjs": {
+      "Package": "shinyjs",
+      "Version": "2.1.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "digest",
+        "jsonlite",
+        "shiny"
+      ],
+      "Hash": "802e4786b353a4bb27116957558548d5"
+    },
     "sourcetools": {
       "Package": "sourcetools",
       "Version": "0.1.7-1",
@@ -840,6 +981,36 @@
       ],
       "Hash": "5f5a7629f956619d519205ec475fe647"
     },
+    "stringi": {
+      "Package": "stringi",
+      "Version": "1.7.12",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "stats",
+        "tools",
+        "utils"
+      ],
+      "Hash": "ca8bd84263c77310739d2cf64d84d7c9"
+    },
+    "stringr": {
+      "Package": "stringr",
+      "Version": "1.5.0",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "R",
+        "cli",
+        "glue",
+        "lifecycle",
+        "magrittr",
+        "rlang",
+        "stringi",
+        "vctrs"
+      ],
+      "Hash": "671a4d384ae9d32fc47a14e98bfa3dc8"
+    },
     "sys": {
       "Package": "sys",
       "Version": "3.4.1",
@@ -882,6 +1053,16 @@
       ],
       "Hash": "79540e5fcd9e0435af547d885f184fd5"
     },
+    "tinytex": {
+      "Package": "tinytex",
+      "Version": "0.45",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "xfun"
+      ],
+      "Hash": "e4e357f28c2edff493936b6cb30c3d65"
+    },
     "tzdb": {
       "Package": "tzdb",
       "Version": "0.3.0",
@@ -966,6 +1147,17 @@
       ],
       "Hash": "c0e49a9760983e81e55cdd9be92e7182"
     },
+    "xfun": {
+      "Package": "xfun",
+      "Version": "0.38",
+      "Source": "Repository",
+      "Repository": "CRAN",
+      "Requirements": [
+        "stats",
+        "tools"
+      ],
+      "Hash": "1ed71215d45e85562d3b1b29a068ccec"
+    },
     "xtable": {
       "Package": "xtable",
       "Version": "1.8-4",