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ownData.html
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<!DOCTYPE html>
<html lang="en"><head>
<script src="ownData_files/libs/clipboard/clipboard.min.js"></script>
<script src="ownData_files/libs/quarto-html/tabby.min.js"></script>
<script src="ownData_files/libs/quarto-html/popper.min.js"></script>
<script src="ownData_files/libs/quarto-html/tippy.umd.min.js"></script>
<link href="ownData_files/libs/quarto-html/tippy.css" rel="stylesheet">
<link href="ownData_files/libs/quarto-html/light-border.css" rel="stylesheet">
<link href="ownData_files/libs/quarto-html/quarto-html.min.css" rel="stylesheet" data-mode="light">
<link href="ownData_files/libs/quarto-html/quarto-syntax-highlighting.css" rel="stylesheet" id="quarto-text-highlighting-styles"><meta charset="utf-8">
<meta name="generator" content="quarto-1.3.450">
<meta name="author" content="Ottavia M. Epifania">
<title>Fluid code :)</title>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
<link rel="stylesheet" href="ownData_files/libs/revealjs/dist/reset.css">
<link rel="stylesheet" href="ownData_files/libs/revealjs/dist/reveal.css">
<style>
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
div.columns{display: flex; gap: min(4vw, 1.5em);}
div.column{flex: auto; overflow-x: auto;}
div.hanging-indent{margin-left: 1.5em; text-indent: -1.5em;}
ul.task-list{list-style: none;}
ul.task-list li input[type="checkbox"] {
width: 0.8em;
margin: 0 0.8em 0.2em -1em; /* quarto-specific, see https://github.com/quarto-dev/quarto-cli/issues/4556 */
vertical-align: middle;
}
/* CSS for syntax highlighting */
pre > code.sourceCode { white-space: pre; position: relative; }
pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
pre > code.sourceCode > span:empty { height: 1.2em; }
.sourceCode { overflow: visible; }
code.sourceCode > span { color: inherit; text-decoration: inherit; }
div.sourceCode { margin: 1em 0; }
pre.sourceCode { margin: 0; }
@media screen {
div.sourceCode { overflow: auto; }
}
@media print {
pre > code.sourceCode { white-space: pre-wrap; }
pre > code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
}
pre.numberSource code
{ counter-reset: source-line 0; }
pre.numberSource code > span
{ position: relative; left: -4em; counter-increment: source-line; }
pre.numberSource code > span > a:first-child::before
{ content: counter(source-line);
position: relative; left: -1em; text-align: right; vertical-align: baseline;
border: none; display: inline-block;
-webkit-touch-callout: none; -webkit-user-select: none;
-khtml-user-select: none; -moz-user-select: none;
-ms-user-select: none; user-select: none;
padding: 0 4px; width: 4em;
color: #aaaaaa;
}
pre.numberSource { margin-left: 3em; border-left: 1px solid #aaaaaa; padding-left: 4px; }
div.sourceCode
{ color: #003b4f; background-color: #f1f3f5; }
@media screen {
pre > code.sourceCode > span > a:first-child::before { text-decoration: underline; }
}
code span { color: #003b4f; } /* Normal */
code span.al { color: #ad0000; } /* Alert */
code span.an { color: #5e5e5e; } /* Annotation */
code span.at { color: #657422; } /* Attribute */
code span.bn { color: #ad0000; } /* BaseN */
code span.bu { } /* BuiltIn */
code span.cf { color: #003b4f; } /* ControlFlow */
code span.ch { color: #20794d; } /* Char */
code span.cn { color: #8f5902; } /* Constant */
code span.co { color: #5e5e5e; } /* Comment */
code span.cv { color: #5e5e5e; font-style: italic; } /* CommentVar */
code span.do { color: #5e5e5e; font-style: italic; } /* Documentation */
code span.dt { color: #ad0000; } /* DataType */
code span.dv { color: #ad0000; } /* DecVal */
code span.er { color: #ad0000; } /* Error */
code span.ex { } /* Extension */
code span.fl { color: #ad0000; } /* Float */
code span.fu { color: #4758ab; } /* Function */
code span.im { color: #00769e; } /* Import */
code span.in { color: #5e5e5e; } /* Information */
code span.kw { color: #003b4f; } /* Keyword */
code span.op { color: #5e5e5e; } /* Operator */
code span.ot { color: #003b4f; } /* Other */
code span.pp { color: #ad0000; } /* Preprocessor */
code span.sc { color: #5e5e5e; } /* SpecialChar */
code span.ss { color: #20794d; } /* SpecialString */
code span.st { color: #20794d; } /* String */
code span.va { color: #111111; } /* Variable */
code span.vs { color: #20794d; } /* VerbatimString */
code span.wa { color: #5e5e5e; font-style: italic; } /* Warning */
</style>
<link rel="stylesheet" href="ownData_files/libs/revealjs/dist/theme/quarto.css">
<link href="ownData_files/libs/revealjs/plugin/quarto-line-highlight/line-highlight.css" rel="stylesheet">
<link href="ownData_files/libs/revealjs/plugin/reveal-menu/menu.css" rel="stylesheet">
<link href="ownData_files/libs/revealjs/plugin/reveal-menu/quarto-menu.css" rel="stylesheet">
<link href="ownData_files/libs/revealjs/plugin/quarto-support/footer.css" rel="stylesheet">
<style type="text/css">
.callout {
margin-top: 1em;
margin-bottom: 1em;
border-radius: .25rem;
}
.callout.callout-style-simple {
padding: 0em 0.5em;
border-left: solid #acacac .3rem;
border-right: solid 1px silver;
border-top: solid 1px silver;
border-bottom: solid 1px silver;
display: flex;
}
.callout.callout-style-default {
border-left: solid #acacac .3rem;
border-right: solid 1px silver;
border-top: solid 1px silver;
border-bottom: solid 1px silver;
}
.callout .callout-body-container {
flex-grow: 1;
}
.callout.callout-style-simple .callout-body {
font-size: 1rem;
font-weight: 400;
}
.callout.callout-style-default .callout-body {
font-size: 0.9rem;
font-weight: 400;
}
.callout.callout-titled.callout-style-simple .callout-body {
margin-top: 0.2em;
}
.callout:not(.callout-titled) .callout-body {
display: flex;
}
.callout:not(.no-icon).callout-titled.callout-style-simple .callout-content {
padding-left: 1.6em;
}
.callout.callout-titled .callout-header {
padding-top: 0.2em;
margin-bottom: -0.2em;
}
.callout.callout-titled .callout-title p {
margin-top: 0.5em;
margin-bottom: 0.5em;
}
.callout.callout-titled.callout-style-simple .callout-content p {
margin-top: 0;
}
.callout.callout-titled.callout-style-default .callout-content p {
margin-top: 0.7em;
}
.callout.callout-style-simple div.callout-title {
border-bottom: none;
font-size: .9rem;
font-weight: 600;
opacity: 75%;
}
.callout.callout-style-default div.callout-title {
border-bottom: none;
font-weight: 600;
opacity: 85%;
font-size: 0.9rem;
padding-left: 0.5em;
padding-right: 0.5em;
}
.callout.callout-style-default div.callout-content {
padding-left: 0.5em;
padding-right: 0.5em;
}
.callout.callout-style-simple .callout-icon::before {
height: 1rem;
width: 1rem;
display: inline-block;
content: "";
background-repeat: no-repeat;
background-size: 1rem 1rem;
}
.callout.callout-style-default .callout-icon::before {
height: 0.9rem;
width: 0.9rem;
display: inline-block;
content: "";
background-repeat: no-repeat;
background-size: 0.9rem 0.9rem;
}
.callout-title {
display: flex
}
.callout-icon::before {
margin-top: 1rem;
padding-right: .5rem;
}
.callout.no-icon::before {
display: none !important;
}
.callout.callout-titled .callout-body > .callout-content > :last-child {
margin-bottom: 0.5rem;
}
.callout.callout-titled .callout-icon::before {
margin-top: .5rem;
padding-right: .5rem;
}
.callout:not(.callout-titled) .callout-icon::before {
margin-top: 1rem;
padding-right: .5rem;
}
/* Callout Types */
div.callout-note {
border-left-color: #4582ec !important;
}
div.callout-note .callout-icon::before {
background-image: url('data:image/png;base64,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');
}
div.callout-note.callout-style-default .callout-title {
background-color: #dae6fb
}
div.callout-important {
border-left-color: #d9534f !important;
}
div.callout-important .callout-icon::before {
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</head>
<body class="quarto-light">
<div class="reveal">
<div class="slides">
<section id="title-slide" class="quarto-title-block center">
<h1 class="title">Fluid code :)</h1>
<div class="quarto-title-authors">
<div class="quarto-title-author">
<div class="quarto-title-author-name">
Ottavia M. Epifania
</div>
</div>
</div>
</section>
<section>
<section id="why-did-i-break" class="title-slide slide level1 center">
<h1>Why did I break?</h1>
</section>
<section id="look-at-the-code" class="slide level2">
<h2>Look at the code</h2>
<p><code>appExamples/brokenApp-dataUpload.R</code></p>
<div class="panel-tabset">
<ul id="tabset-1" class="panel-tabset-tabby"><li><a data-tabby-default="" href="#tabset-1-1">UI</a></li><li><a href="#tabset-1-2">Server</a></li></ul>
<div class="tab-content">
<div id="tabset-1-1">
<div class="cell">
<div class="sourceCode cell-code" id="cb1" data-code-line-numbers="|3-8|10-16|11|"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb1-1"><a href="#cb1-1"></a>ui <span class="ot">=</span> <span class="fu">fluidPage</span>(</span>
<span id="cb1-2"><a href="#cb1-2"></a> <span class="fu">sidebarLayout</span>(<span class="fu">sidebarPanel</span>(</span>
<span id="cb1-3"><a href="#cb1-3"></a> <span class="fu">selectInput</span>(<span class="at">inputId =</span> <span class="st">"dataset"</span>,</span>
<span id="cb1-4"><a href="#cb1-4"></a> <span class="at">label =</span> <span class="st">"Choose a dataset:"</span>,</span>
<span id="cb1-5"><a href="#cb1-5"></a> <span class="at">choices =</span> <span class="fu">list</span>(<span class="st">"rock"</span> <span class="ot">=</span> <span class="dv">1</span>, </span>
<span id="cb1-6"><a href="#cb1-6"></a> <span class="st">"pressure"</span> <span class="ot">=</span> <span class="dv">2</span>,</span>
<span id="cb1-7"><a href="#cb1-7"></a> <span class="st">"cars"</span> <span class="ot">=</span> <span class="dv">3</span>,</span>
<span id="cb1-8"><a href="#cb1-8"></a> <span class="st">"I want to use my data!!"</span> <span class="ot">=</span><span class="dv">4</span>)), </span>
<span id="cb1-9"><a href="#cb1-9"></a> <span class="co"># Let me introduce you Mr. Conditional Panel</span></span>
<span id="cb1-10"><a href="#cb1-10"></a> <span class="fu">conditionalPanel</span>(</span>
<span id="cb1-11"><a href="#cb1-11"></a> <span class="at">condition =</span> <span class="st">"input.dataset == '4'"</span>, <span class="co"># What is the condition for which I should show up?</span></span>
<span id="cb1-12"><a href="#cb1-12"></a> <span class="co"># What should be displayed inside me once I show up?</span></span>
<span id="cb1-13"><a href="#cb1-13"></a> <span class="fu">fileInput</span>(<span class="st">"example"</span>, <span class="co"># label for the server</span></span>
<span id="cb1-14"><a href="#cb1-14"></a> <span class="st">""</span>, <span class="co"># no displayed label for users</span></span>
<span id="cb1-15"><a href="#cb1-15"></a> <span class="at">accept =</span> <span class="fu">c</span>(<span class="st">"csv"</span>)) <span class="co"># what format do we accept?</span></span>
<span id="cb1-16"><a href="#cb1-16"></a> ),</span>
<span id="cb1-17"><a href="#cb1-17"></a> <span class="fu">actionButton</span>(<span class="st">"load"</span>, <span class="st">"Upload data"</span>)</span>
<span id="cb1-18"><a href="#cb1-18"></a> ),</span>
<span id="cb1-19"><a href="#cb1-19"></a> <span class="fu">mainPanel</span>(</span>
<span id="cb1-20"><a href="#cb1-20"></a> <span class="fu">plotOutput</span>(</span>
<span id="cb1-21"><a href="#cb1-21"></a> <span class="st">"graph"</span></span>
<span id="cb1-22"><a href="#cb1-22"></a> ),</span>
<span id="cb1-23"><a href="#cb1-23"></a> <span class="fu">verbatimTextOutput</span>(</span>
<span id="cb1-24"><a href="#cb1-24"></a> <span class="st">"summary"</span></span>
<span id="cb1-25"><a href="#cb1-25"></a> )</span>
<span id="cb1-26"><a href="#cb1-26"></a> ) <span class="co"># display output</span></span>
<span id="cb1-27"><a href="#cb1-27"></a> )</span>
<span id="cb1-28"><a href="#cb1-28"></a>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
</div>
<div id="tabset-1-2">
<div class="cell">
<div class="sourceCode cell-code" id="cb2" data-code-line-numbers="|18, 25|31,33|"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1"></a>server <span class="ot">=</span> <span class="cf">function</span>(input, output){</span>
<span id="cb2-2"><a href="#cb2-2"></a> values <span class="ot"><-</span> <span class="fu">reactiveValues</span>()</span>
<span id="cb2-3"><a href="#cb2-3"></a> dataInput <span class="ot"><-</span> <span class="fu">reactive</span>({</span>
<span id="cb2-4"><a href="#cb2-4"></a> <span class="cf">if</span>(input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">1</span>){ </span>
<span id="cb2-5"><a href="#cb2-5"></a> data <span class="ot"><-</span> rock</span>
<span id="cb2-6"><a href="#cb2-6"></a> } <span class="cf">else</span> <span class="cf">if</span> (input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">2</span> ){</span>
<span id="cb2-7"><a href="#cb2-7"></a> data <span class="ot"><-</span> pressure</span>
<span id="cb2-8"><a href="#cb2-8"></a> } <span class="cf">else</span> <span class="cf">if</span> (input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">3</span>) {</span>
<span id="cb2-9"><a href="#cb2-9"></a> data <span class="ot"><-</span> cars</span>
<span id="cb2-10"><a href="#cb2-10"></a> } <span class="cf">else</span> <span class="cf">if</span> (input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">4</span>) {</span>
<span id="cb2-11"><a href="#cb2-11"></a> data <span class="ot"><-</span> <span class="fu">read.csv</span>(input<span class="sc">$</span>example<span class="sc">$</span>datapath) </span>
<span id="cb2-12"><a href="#cb2-12"></a> }</span>
<span id="cb2-13"><a href="#cb2-13"></a> })</span>
<span id="cb2-14"><a href="#cb2-14"></a><span class="fu">observeEvent</span>(input<span class="sc">$</span>load, {</span>
<span id="cb2-15"><a href="#cb2-15"></a> values<span class="sc">$</span>data <span class="ot"><-</span> <span class="fu">data.frame</span>(<span class="fu">dataInput</span>())</span>
<span id="cb2-16"><a href="#cb2-16"></a> })</span>
<span id="cb2-17"><a href="#cb2-17"></a>output<span class="sc">$</span>graph <span class="ot"><-</span> <span class="fu">renderPlot</span>({</span>
<span id="cb2-18"><a href="#cb2-18"></a> <span class="fu">validate</span>(<span class="fu">need</span>(input<span class="sc">$</span>load <span class="sc">></span> <span class="dv">0</span>, <span class="st">"Waiting for data"</span>))</span>
<span id="cb2-19"><a href="#cb2-19"></a><span class="cf">if</span> (<span class="fu">any</span>(<span class="fu">colnames</span>(values<span class="sc">$</span>data) <span class="sc">==</span> <span class="st">"condition"</span>) ){ </span>
<span id="cb2-20"><a href="#cb2-20"></a> <span class="cf">if</span> (<span class="fu">any</span>(<span class="fu">sapply</span>(values<span class="sc">$</span>data, is.character)) <span class="sc">==</span> <span class="cn">TRUE</span>) {</span>
<span id="cb2-21"><a href="#cb2-21"></a> values<span class="sc">$</span>data[, <span class="fu">sapply</span>(values<span class="sc">$</span>data, is.character) <span class="sc">==</span> T] <span class="ot">=</span> <span class="fu">lapply</span>(values<span class="sc">$</span>data[, <span class="fu">sapply</span>(values<span class="sc">$</span>data, is.character) <span class="sc">==</span> T], as.factor)</span>
<span id="cb2-22"><a href="#cb2-22"></a> } <span class="cf">else</span> {</span>
<span id="cb2-23"><a href="#cb2-23"></a> values<span class="sc">$</span>data <span class="ot">=</span> values<span class="sc">$</span>data</span>
<span id="cb2-24"><a href="#cb2-24"></a> }</span>
<span id="cb2-25"><a href="#cb2-25"></a><span class="fu">plot</span>(values<span class="sc">$</span>data<span class="sc">$</span>tr <span class="sc">~</span> values<span class="sc">$</span>data<span class="sc">$</span>condition, <span class="at">xlab =</span> <span class="st">"Condition"</span>, <span class="at">ylab =</span> <span class="st">"TR"</span>)</span>
<span id="cb2-26"><a href="#cb2-26"></a>} <span class="cf">else</span> {</span>
<span id="cb2-27"><a href="#cb2-27"></a> <span class="fu">plot</span>(values<span class="sc">$</span>data[, <span class="fu">c</span>(<span class="dv">1</span><span class="sc">:</span><span class="dv">2</span>)])</span>
<span id="cb2-28"><a href="#cb2-28"></a> }</span>
<span id="cb2-29"><a href="#cb2-29"></a>})</span>
<span id="cb2-30"><a href="#cb2-30"></a>output<span class="sc">$</span>summary <span class="ot"><-</span> <span class="fu">renderPrint</span>({</span>
<span id="cb2-31"><a href="#cb2-31"></a> <span class="fu">validate</span>(<span class="fu">need</span>(input<span class="sc">$</span>load <span class="sc">></span> <span class="dv">0</span>, <span class="st">"Waiting for data"</span>))</span>
<span id="cb2-32"><a href="#cb2-32"></a> <span class="cf">if</span> (<span class="fu">any</span>(<span class="fu">colnames</span>(values<span class="sc">$</span>data) <span class="sc">==</span> <span class="st">"condition"</span>) ){</span>
<span id="cb2-33"><a href="#cb2-33"></a> <span class="fu">summary</span>(values<span class="sc">$</span>data[, <span class="fu">c</span>(<span class="dv">2</span><span class="sc">:</span><span class="dv">3</span>)])</span>
<span id="cb2-34"><a href="#cb2-34"></a> } <span class="cf">else</span> {</span>
<span id="cb2-35"><a href="#cb2-35"></a> <span class="fu">summary</span>(values<span class="sc">$</span>data[, <span class="fu">c</span>(<span class="dv">1</span><span class="sc">:</span><span class="dv">2</span>)])</span>
<span id="cb2-36"><a href="#cb2-36"></a> }</span>
<span id="cb2-37"><a href="#cb2-37"></a> })</span>
<span id="cb2-38"><a href="#cb2-38"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
</div>
</div>
</div>
</section>
<section id="code-has-to-be-fluid-and-adapt-to-everything" class="slide level2">
<h2>Code has to be fluid and adapt to everything</h2>
<img data-src="www/liquid-cats.jpg" style="width:35.0%" class="r-stretch quarto-figure-center"><p>We have the code for uploading a data frame.</p>
<p>The code is designed to work for that specific data frame</p>
<p>If only we had a way to explore the data frame columns and choose the ones we would like to plot 🤔</p>
</section>
<section id="way-better" class="slide level2">
<h2>Way better :)</h2>
<div class="layout-sidebar layout-sidebar-left">
<div class="cell panel-sidebar">
<div class="cell-output-display no-overflow-x">
<div class="form-group shiny-input-container">
<label class="control-label" id="dataset-label" for="dataset">Choose a dataset:</label>
<div>
<select id="dataset" class="shiny-input-select"><option value="1" selected="">rock</option>
<option value="2">pressure</option>
<option value="3">cars</option>
<option value="4">I want to use my data!!</option></select>
<script type="application/json" data-for="dataset" data-nonempty="">{"plugins":["selectize-plugin-a11y"]}</script>
</div>
</div>
</div>
<div class="cell-output-display">
<div data-display-if="input.dataset == '4'" data-ns-prefix="">
<div class="form-group shiny-input-container">
<label class="control-label" id="example-label" for="example"></label>
<div class="input-group">
<label class="input-group-btn input-group-prepend">
<span class="btn btn-default btn-file">
Browse...
<input id="example" class="shiny-input-file" name="example" type="file" style="position: absolute !important; top: -99999px !important; left: -99999px !important;" accept="csv">
</span>
</label>
<input type="text" class="form-control" placeholder="No file selected" readonly="readonly">
</div>
<div id="example_progress" class="progress active shiny-file-input-progress">
<div class="progress-bar"></div>
</div>
</div>
</div>
</div>
<div class="cell-output-display">
<button id="load" type="button" class="btn btn-default action-button">Upload data</button>
</div>
<div class="cell-output-display">
<div data-display-if="input.load >= '1'" data-ns-prefix="">
<div id="var1" class="shiny-html-output"></div>
<div id="var2" class="shiny-html-output"></div>
<button id="select" type="button" class="btn btn-default action-button">Select & Display</button>
</div>
</div>
</div>
<div class="cell panel-fill">
<div class="cell-output-display">
<div class="shiny-plot-output html-fill-item" id="graph" style="width:100%;height:400px;"></div>
</div>
<div class="cell-output-display">
<pre class="shiny-text-output noplaceholder" id="summary"></pre>
</div>
</div>
</div>
</section>
<section id="a-flow-in-a-flow" class="slide level2">
<h2>A flow in a flow</h2>
<div class="panel-tabset">
<ul id="tabset-2" class="panel-tabset-tabby"><li><a data-tabby-default="" href="#tabset-2-1">Step 0</a></li><li><a href="#tabset-2-2">Step 1</a></li><li><a href="#tabset-2-3">Step 2</a></li><li><a href="#tabset-2-4">Step 3</a></li></ul>
<div class="tab-content">
<div id="tabset-2-1">
<div class="quarto-figure quarto-figure-center">
<figure>
<p><img data-src="www/step0.png" width="450" height="300"></p>
</figure>
</div>
</div>
<div id="tabset-2-2">
<div class="quarto-figure quarto-figure-center">
<figure>
<p><img data-src="www/step01.png" width="450" height="300"></p>
</figure>
</div>
</div>
<div id="tabset-2-3">
<div class="quarto-figure quarto-figure-center">
<figure>
<p><img data-src="www/step02.png" width="450" height="300"></p>
</figure>
</div>
</div>
<div id="tabset-2-4">
<div class="quarto-figure quarto-figure-center">
<figure>
<p><img data-src="www/step03.png" width="450" height="300"></p>
</figure>
</div>
</div>
</div>
</div>
</section>
<section id="the-code" class="slide level2">
<h2>The code</h2>
<div class="panel-tabset">
<ul id="tabset-3" class="panel-tabset-tabby"><li><a data-tabby-default="" href="#tabset-3-1">UI</a></li><li><a href="#tabset-3-2">Server</a></li><li><a href="#tabset-3-3">Together</a></li></ul>
<div class="tab-content">
<div id="tabset-3-1">
<div class="cell">
<div class="sourceCode cell-code" id="cb3" data-code-line-numbers="|14-18|15,16|"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1"></a>ui <span class="ot">=</span> <span class="fu">fluidPage</span>(</span>
<span id="cb3-2"><a href="#cb3-2"></a> <span class="fu">sidebarLayout</span>(</span>
<span id="cb3-3"><a href="#cb3-3"></a> <span class="fu">sidebarPanel</span>(</span>
<span id="cb3-4"><a href="#cb3-4"></a> <span class="fu">selectInput</span>(<span class="at">inputId =</span> <span class="st">"dataset"</span>,</span>
<span id="cb3-5"><a href="#cb3-5"></a> <span class="at">label =</span> <span class="st">"Choose a dataset:"</span>,</span>
<span id="cb3-6"><a href="#cb3-6"></a> <span class="at">choices =</span> <span class="fu">list</span>(<span class="st">"rock"</span> <span class="ot">=</span> <span class="dv">1</span>,</span>
<span id="cb3-7"><a href="#cb3-7"></a> <span class="st">"pressure"</span> <span class="ot">=</span> <span class="dv">2</span>,</span>
<span id="cb3-8"><a href="#cb3-8"></a> <span class="st">"cars"</span> <span class="ot">=</span> <span class="dv">3</span>,</span>
<span id="cb3-9"><a href="#cb3-9"></a> <span class="st">"I want to use my data!!"</span> <span class="ot">=</span><span class="dv">4</span>)),</span>
<span id="cb3-10"><a href="#cb3-10"></a> <span class="fu">conditionalPanel</span>(<span class="at">condition =</span> <span class="st">"input.dataset == '4'"</span>,</span>
<span id="cb3-11"><a href="#cb3-11"></a> <span class="fu">fileInput</span>(<span class="st">"example"</span>, <span class="st">""</span>, <span class="at">accept =</span> <span class="fu">c</span>(<span class="st">"csv"</span>))</span>
<span id="cb3-12"><a href="#cb3-12"></a> ), </span>
<span id="cb3-13"><a href="#cb3-13"></a> <span class="fu">actionButton</span>(<span class="st">"load"</span>, <span class="st">"Upload data"</span>), </span>
<span id="cb3-14"><a href="#cb3-14"></a> <span class="fu">conditionalPanel</span>(<span class="at">condition =</span> <span class="st">"input.load >= '1'"</span>, </span>
<span id="cb3-15"><a href="#cb3-15"></a> <span class="fu">uiOutput</span>(<span class="st">"var1"</span>), </span>
<span id="cb3-16"><a href="#cb3-16"></a> <span class="fu">uiOutput</span>(<span class="st">"var2"</span>), </span>
<span id="cb3-17"><a href="#cb3-17"></a> <span class="fu">actionButton</span>(<span class="st">"select"</span>, <span class="st">"Select & Display"</span>) </span>
<span id="cb3-18"><a href="#cb3-18"></a> ), </span>
<span id="cb3-19"><a href="#cb3-19"></a> ),</span>
<span id="cb3-20"><a href="#cb3-20"></a> <span class="fu">mainPanel</span>(</span>
<span id="cb3-21"><a href="#cb3-21"></a> <span class="fu">plotOutput</span>(</span>
<span id="cb3-22"><a href="#cb3-22"></a> <span class="st">"graph"</span></span>
<span id="cb3-23"><a href="#cb3-23"></a> ),</span>
<span id="cb3-24"><a href="#cb3-24"></a> <span class="fu">verbatimTextOutput</span>(</span>
<span id="cb3-25"><a href="#cb3-25"></a> <span class="st">"summary"</span></span>
<span id="cb3-26"><a href="#cb3-26"></a> )</span>
<span id="cb3-27"><a href="#cb3-27"></a> ) </span>
<span id="cb3-28"><a href="#cb3-28"></a> )</span>
<span id="cb3-29"><a href="#cb3-29"></a>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
</div>
<div id="tabset-3-2">
<div class="cell">
<div class="sourceCode cell-code" id="cb4" data-code-line-numbers="|22-33|22-27|28-33|34-36|"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1"></a>server <span class="ot">=</span> <span class="cf">function</span>(input, output){</span>
<span id="cb4-2"><a href="#cb4-2"></a> values <span class="ot"><-</span> <span class="fu">reactiveValues</span>()</span>
<span id="cb4-3"><a href="#cb4-3"></a> dataInput <span class="ot"><-</span> <span class="fu">reactive</span>({</span>
<span id="cb4-4"><a href="#cb4-4"></a> <span class="cf">if</span>(input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">1</span>){</span>
<span id="cb4-5"><a href="#cb4-5"></a> data <span class="ot"><-</span> rock</span>
<span id="cb4-6"><a href="#cb4-6"></a> } <span class="cf">else</span> <span class="cf">if</span> (input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">2</span> ){</span>
<span id="cb4-7"><a href="#cb4-7"></a> data <span class="ot"><-</span> pressure</span>
<span id="cb4-8"><a href="#cb4-8"></a> } <span class="cf">else</span> <span class="cf">if</span> (input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">3</span>) {</span>
<span id="cb4-9"><a href="#cb4-9"></a> data <span class="ot"><-</span> cars</span>
<span id="cb4-10"><a href="#cb4-10"></a> } <span class="cf">else</span> <span class="cf">if</span> (input<span class="sc">$</span>dataset <span class="sc">==</span> <span class="dv">4</span>) {</span>
<span id="cb4-11"><a href="#cb4-11"></a> data <span class="ot"><-</span> <span class="fu">read.csv</span>(input<span class="sc">$</span>example<span class="sc">$</span>datapath)</span>
<span id="cb4-12"><a href="#cb4-12"></a> }</span>
<span id="cb4-13"><a href="#cb4-13"></a> })</span>
<span id="cb4-14"><a href="#cb4-14"></a><span class="fu">observeEvent</span>(input<span class="sc">$</span>load, {</span>
<span id="cb4-15"><a href="#cb4-15"></a> values<span class="sc">$</span>data <span class="ot"><-</span> <span class="fu">data.frame</span>(<span class="fu">dataInput</span>())</span>
<span id="cb4-16"><a href="#cb4-16"></a> <span class="cf">if</span> (<span class="fu">any</span>(<span class="fu">sapply</span>(values<span class="sc">$</span>data, is.character)) <span class="sc">==</span> <span class="cn">TRUE</span>) {</span>
<span id="cb4-17"><a href="#cb4-17"></a> values<span class="sc">$</span>data[, <span class="fu">sapply</span>(values<span class="sc">$</span>data, is.character) <span class="sc">==</span> T] <span class="ot">=</span> <span class="fu">lapply</span>(values<span class="sc">$</span>data[, <span class="fu">sapply</span>(values<span class="sc">$</span>data, is.character) <span class="sc">==</span> T], as.factor)</span>
<span id="cb4-18"><a href="#cb4-18"></a> } <span class="cf">else</span> {</span>
<span id="cb4-19"><a href="#cb4-19"></a> values<span class="sc">$</span>data <span class="ot">=</span> values<span class="sc">$</span>data</span>
<span id="cb4-20"><a href="#cb4-20"></a> }</span>
<span id="cb4-21"><a href="#cb4-21"></a> })</span>
<span id="cb4-22"><a href="#cb4-22"></a>output<span class="sc">$</span>var1 <span class="ot"><-</span> <span class="fu">renderUI</span>({ </span>
<span id="cb4-23"><a href="#cb4-23"></a> nam <span class="ot"><-</span> <span class="fu">colnames</span>(values<span class="sc">$</span>data)</span>
<span id="cb4-24"><a href="#cb4-24"></a> <span class="fu">selectInput</span>(<span class="st">"var1"</span>, <span class="at">label =</span> <span class="st">"Select x:"</span>, </span>
<span id="cb4-25"><a href="#cb4-25"></a> <span class="at">choices =</span> <span class="fu">c</span>(nam), <span class="at">multiple =</span> <span class="cn">FALSE</span>,</span>
<span id="cb4-26"><a href="#cb4-26"></a> <span class="at">selected =</span> nam[<span class="dv">1</span>])</span>
<span id="cb4-27"><a href="#cb4-27"></a> })</span>
<span id="cb4-28"><a href="#cb4-28"></a>output<span class="sc">$</span>var2 <span class="ot"><-</span> <span class="fu">renderUI</span>({</span>
<span id="cb4-29"><a href="#cb4-29"></a> nam2 <span class="ot"><-</span> <span class="fu">colnames</span>(values<span class="sc">$</span>data) </span>
<span id="cb4-30"><a href="#cb4-30"></a> <span class="fu">selectInput</span>(<span class="st">"var2"</span>, <span class="at">label =</span> <span class="st">"Select y:"</span>,</span>
<span id="cb4-31"><a href="#cb4-31"></a> <span class="at">choices =</span> <span class="fu">c</span>(nam2), <span class="at">multiple =</span> <span class="cn">FALSE</span>,</span>
<span id="cb4-32"><a href="#cb4-32"></a> <span class="at">selected =</span> nam2[<span class="dv">1</span>])</span>
<span id="cb4-33"><a href="#cb4-33"></a> })</span>
<span id="cb4-34"><a href="#cb4-34"></a>newdata <span class="ot"><-</span> <span class="fu">observeEvent</span>(input<span class="sc">$</span>select, { </span>
<span id="cb4-35"><a href="#cb4-35"></a> values<span class="sc">$</span>df <span class="ot"><-</span> values<span class="sc">$</span>data[<span class="fu">c</span>(input<span class="sc">$</span>var1, input<span class="sc">$</span>var2)]</span>
<span id="cb4-36"><a href="#cb4-36"></a> })</span>
<span id="cb4-37"><a href="#cb4-37"></a>output<span class="sc">$</span>graph <span class="ot"><-</span> <span class="fu">renderPlot</span>({</span>
<span id="cb4-38"><a href="#cb4-38"></a> <span class="fu">validate</span>( <span class="fu">need</span>(input<span class="sc">$</span>select <span class="sc">></span> <span class="dv">0</span>, <span class="st">"Waiting for data"</span>)) </span>
<span id="cb4-39"><a href="#cb4-39"></a>df <span class="ot"><-</span> values<span class="sc">$</span>df </span>
<span id="cb4-40"><a href="#cb4-40"></a> <span class="fu">plot</span>(df[, <span class="fu">c</span>(<span class="dv">1</span><span class="sc">:</span><span class="dv">2</span>)]) </span>
<span id="cb4-41"><a href="#cb4-41"></a> })</span>
<span id="cb4-42"><a href="#cb4-42"></a>output<span class="sc">$</span>summary <span class="ot"><-</span> <span class="fu">renderPrint</span>({</span>
<span id="cb4-43"><a href="#cb4-43"></a> <span class="fu">validate</span>(<span class="fu">need</span>(input<span class="sc">$</span>select <span class="sc">></span> <span class="dv">0</span>, <span class="st">"Waiting for data"</span>)) </span>
<span id="cb4-44"><a href="#cb4-44"></a> df <span class="ot"><-</span> values<span class="sc">$</span>df <span class="co"># same </span></span>
<span id="cb4-45"><a href="#cb4-45"></a> <span class="fu">summary</span>(df[, <span class="fu">c</span>(<span class="dv">1</span><span class="sc">:</span><span class="dv">2</span>)])</span>
<span id="cb4-46"><a href="#cb4-46"></a> })</span>
<span id="cb4-47"><a href="#cb4-47"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
</div>
<div id="tabset-3-3">
<div class="cell">
<div class="sourceCode cell-code" id="cb5"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb5-1"><a href="#cb5-1"></a><span class="fu">shinyApp</span>(ui, server)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
</div>
</div>
</div>
<p>
<script type="application/shiny-prerendered" data-context="server">
values <- reactiveValues()
dataInput <- reactive({
if(input$dataset == 1){
data <- rock
} else if (input$dataset == 2 ){
data <- pressure
} else if (input$dataset == 3) {
data <- cars
} else if (input$dataset == 4) {
data <- read.csv(input$example$datapath)
}
})
observeEvent(input$load, {
values$data <- data.frame(dataInput())
# check the characters
if (any(sapply(values$data, is.character)) == TRUE) {
values$data[, sapply(values$data, is.character) == T] = lapply(values$data[, sapply(values$data, is.character) == T], as.factor)
} else {
values$data = values$data
}
})
output$var1 <- renderUI({ # remember variable 1? here it is how we extract it
nam <- colnames(values$data) # from the data set
selectInput("var1", label = "Select x:", # create the input
choices = c(nam), multiple = FALSE,
selected = nam[1])
})
output$var2 <- renderUI({
nam2 <- colnames(values$data) # create the input for variable 2
selectInput("var2", label = "Select y:",
choices = c(nam2), multiple = FALSE,
selected = nam2[1])
})
newdata <- observeEvent(input$select, # use observe event so that the app will
{ # wait for you to decide before acting
# Besides, you're creating a new (smaller) object
values$df <- values$data[c(input$var1, input$var2)]
})
output$graph <- renderPlot({
validate(
need(input$select > 0, "Waiting for data") # I changed the validation from
) # load to select
df <- values$df # store the new object into an R object
plot(df[, c(1:2)]) # use it normally
})
output$summary <- renderPrint({
validate(
need(input$select > 0, "Waiting for data")
)
df <- values$df # same
summary(df[, c(1:2)])
})
</script>
<script type="application/shiny-prerendered" data-context="server-extras">
ojs_define <- function(..., .session = shiny::getDefaultReactiveDomain()) {
quos <- rlang::enquos(...)
vars <- rlang::list2(...)
nm <- names(vars)
if (is.null(nm)) {
nm <- rep_len("", length(vars))
}
mapply(function(q, nm, val) {
# Infer name, if possible
if (nm == "") {
tryCatch({
nm <- rlang::as_name(q)
}, error = function(e) {
code <- paste(collapse = "\n", deparse(rlang::f_rhs(q)))
stop("ojs_define() could not create a name for the argument: ", code)
})
}
.session$output[[nm]] <- val
outputOptions(.session$output, nm, suspendWhenHidden = FALSE)
.session$sendCustomMessage("ojs-export", list(name = nm))
NULL
}, quos, nm, vars, SIMPLIFY = FALSE, USE.NAMES = FALSE)
invisible()
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