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Created April 12, 2013 02:59
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readme.mkd
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data.csv
id name priority who time status
T-024 Organisation list in directory MUST Joe 5 Complete
T-015 Make term Commissions customisable MUST Natasha 6 Complete
T-016 Comments popup on select rates MUST Mike 3 In Progress
T-0169 Upgrade Centos Box MUST Joe 2 In Progress
T-013 Search in Documents on selected folder MUST Natasha 6 In Progress
T-014 Separate Document system for LA and Legals MUST Joe 9 In Progress
T-017 Demo of Look and Feel of Documents front end MUST Natasha 5 In Progress
T-021 Fix error where forum filename is greater than 100chars MUST Mike 4 Not Started
T-025 Fix admin so structure of categories displayed MUST Mike 2.5 Complete
T-027 Reorganise git repos in Assembla MUST Joe 3 Not Started
T-033 Tree not showing correctly in documents MUST Natasha 1 In Progress
T-052 Add Cacheing MUST Mike 1.5 Complete
T-055 Allow custom ordering of document categories MUST Joe 0.5 Not Started
T-056 Pressing enter on date button triggers cancel MUST Joe 1 Not Started
T-057 Ajax not working on IE when selecting org MUST Natasha 6 Not Started
T-060 Send Reminder Email as required SHOULD Mike 3 Complete
T-061 Attach Document to response in Forum SHOULD Joe 4 Not Started
T-062 Forum thread notifications SHOULD Natasha 9 Complete
T-063 Group email notification SHOULD Mike 8 In Progress
T-064 Admin can see Who is logged in SHOULD Joe 9 Not Started
T-067 Extend Audit Trail SHOULD Natasha 12 Complete
T-068 Maintenance Links SHOULD Mike 4 Complete
T-094 Browse prices button SHOULD Joe 6 Not Started
T-095 Group email to be only available to the administrator SHOULD Natasha 5 Complete
T-096 Update cribsheet COULD Mike 2 Not Started
T-0103 Awarded missing from Estimated Tab COULD Joe 7 Complete
T-0105 New cribsheet COULD Natasha 7 Not Started
T-0111 Document not being added on forum response COULD Mike 6 Not Started
T-0114 Can't delete users once active WISH Joe 3 Not Started
T-0125 Add course organiser on notification WISH Natasha 2.5 In Progress
T-0126 Setup demonstration system for Demo MUST Joe 3 Not Started
T-0133 Fix forum pagination problem properly MUST Natasha 3 Not Started
T-0145 In Directory, tickbox to select all filtered users MUST Joe 3 Complete
T-0146 Merge user and user profile in admin MUST Natasha 2 Not Started
T-0147 Have multiple documents on an estimate MUST Mike 2 Not Started
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<title>D3 nest examples</title>
<script src="http://d3js.org/d3.v2.js"></script>
<script src=" https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<link href='http://fonts.googleapis.com/css?family=Tienne' rel='stylesheet' type='text/css'>
<style>
body {
font-family: 'Tienne', serif;
font-size: 12px;
}
</style>
</head>
<body>
<h1>D3 Nest Tutorial and examples</h1>
<p>Here is my learning process for getting to grips with nest. Discovered the d3 tests half way through which were a great help: <a href="https://github.com/mbostock/d3/blob/master/test/core/nest-test.js">tests</a></p><h2>Simple one level nest</h2>
<p>In Bl.ocks.org, click on "Open in a New Window" (bottom right) to view all the examples</p>
<p>Group by status</p>
<code>var nested_data = d3.nest()<br />
.key(function(d) { return d.status; })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex1" rows="15" cols="90"></textarea>
<h2>Simple two level nest</h2>
<p>Group by status then priority</p>
<code>var nested_data = d3.nest()<br />
.key(function(d) { return d.status; })<br />
.key(function(d) { return d.priority; })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex2" rows="15" cols="90"></textarea>
<h2>Use rollup to count leaves</h2>
<p>The leaf level is replaced by a value at the parent level</p>
<code>var nested_data = d3.nest()<br />
.key(function(d) { return d.status; })<br />
.key(function(d) { return d.priority; })<br />
.rollup(function(leaves) { return leaves.length; })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex3" rows="15" cols="90"></textarea>
<h2>Rollup does sums as well</h2>
<p>Can't have two rollups, but can return an object/array</p>
<code>var nested_data = d3.nest()<br />
.key(function(d) { return d.status; })<br />
.key(function(d) { return d.priority; })<br />
.rollup(function(leaves) {
return {"length": leaves.length,
"total_time": d3.sum(leaves, function(d) {return parseFloat(d.time);})} })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex4" rows="15" cols="90"></textarea>
<h2>Rollup everything to get a grand total of number of lines</h2>
<p>No key</p>
<code>var nested_data = d3.nest()<br />
.rollup(function(leaves) { return leaves.length; })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex9" rows="15" cols="90"></textarea>
<h2>Sorting</h2>
<p>Each level can be sorted by key - a simple ascending or descending...</p>
<code>var nested_data = d3.nest()<br />
.key(function(d) { return d.status; }).sortKeys(d3.ascending)<br />
.key(function(d) { return d.priority; }).sortKeys(function(d) { return )<br />
.rollup(function(leaves) { return leaves.length; })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex5" rows="15" cols="90"></textarea>
<h2>Sorting - custom order</h2>
<p>Status, fortuitously, can be sorted in straing ascending order, but Priority requires a custom order. Create an list in the order you want and use indexOf to create the order comparaitor function.</p>
<code>
var priority_order = ['MUST', "SHOULD", 'COULD', 'WISH'];<br />
var nested_data = d3.nest()<br />
.key(function(d) { return d.status; }).sortKeys(d3.ascending)<br />
.key(function(d) { return d.priority; }).sortKeys(function(a,b) { return priority_order.indexOf(a) - priority_order.indexOf(b); })<br />
.rollup(function(leaves) { return leaves.length; })<br />
.entries(csv_data);<br />
</code>
<textarea id="ex6" rows="15" cols="90"></textarea>
<h2>Sorting - sort the leaves as well</h2>
<p>Use sortValue to sort the leaves - sort by time with smallest first</p>
<code>
var priority_order = ['MUST', "SHOULD", 'COULD', 'WISH'];<br />
var nested_data = d3.nest()<br />
.key(function(d) { return d.status; }).sortKeys(d3.ascending)<br />
.key(function(d) { return d.priority; }).sortKeys(function(a,b) { return priority_order.indexOf(a) - priority_order.indexOf(b); })<br />
.sortValues(function(a,b) { return parseFloat(a.time) - parseFloat(b.time); } }<br />
.entries(csv_data);<br />
</code>
<textarea id="ex7" rows="15" cols="90"></textarea>
<h2>Sorting - sort the leaves as well</h2>
<p>Use sortValue to sort the leaves - sort by person this time.</p>
<code>
var priority_order = ['MUST', "SHOULD", 'COULD', 'WISH'];<br />
var nested_data = d3.nest()<br />
.key(function(d) { return d.status; }).sortKeys(d3.ascending)<br />
.key(function(d) { return d.priority; }).sortKeys(function(a,b) { return priority_order.indexOf(a) - priority_order.indexOf(b); })<br />
.sortValues(function(a,b) { return ((a.who < b.who)<br />
? -1<br />
: 1);<br />
return 0;} )<br />
.entries(csv_data);<br />
</code>
<textarea id="ex8" rows="15" cols="90"></textarea>
<h2>Populate a Select list from csv data</h2>
<p>Use nest to get a unique list of people then create a select from it.</p>
<code>
var nested_data = d3.nest()<br />
.key(function(d) { return d.who}).sortKeys(d3.ascending)<br />
.rollup(function(leaves) { return leaves.length; })<br />
.entries(csv_data);<br />
<br />
var list = d3.select("#ex10").append("select")<br />
<br />
list.selectAll("option")<br />
.data(nested_data)<br />
.enter()<br />
.append("option")<br />
.attr("value", function(d) {return d.key;})<br />
.text(function(d) {<br />
return d.key; });<br />
<br />
</code>
<div id="ex10">
</div>
<script>
d3.csv("./data.csv", function(csv_data){
var nested_data = d3.nest()
.key(function(d) { return d.status; })
.entries(csv_data);
$("#ex1").html(JSON.stringify(nested_data, null, 3));
var nested_data = d3.nest()
.key(function(d) { return d.status; })
.key(function(d) { return d.priority; })
.entries(csv_data);
$("#ex2").html(JSON.stringify(nested_data, null, 3));
var nested_data = d3.nest()
.key(function(d) { return d.status; })
.key(function(d) { return d.priority; })
.rollup(function(leaves) { return leaves.length; })
.entries(csv_data);
$("#ex3").html(JSON.stringify(nested_data, null, 3));
var nested_data = d3.nest()
.key(function(d) { return d.status; })
.key(function(d) { return d.priority; })
.rollup(function(leaves) {
return {"length": leaves.length,
"total_time": d3.sum(leaves, function(d) {return parseFloat(d.time);})} })
.entries(csv_data);
$("#ex4").html(JSON.stringify(nested_data, null, 3));
var nested_data = d3.nest()
.key(function(d) { return d.status; }).sortKeys(d3.ascending)
.key(function(d) { return d.priority; }).sortKeys(d3.descending)
.rollup(function(leaves) { return leaves.length; })
.entries(csv_data);
$("#ex5").html(JSON.stringify(nested_data, null, 3));
var priority_order = ['MUST', "SHOULD", 'COULD', 'WISH'];
var nested_data = d3.nest()
.key(function(d) { return d.status; }).sortKeys(d3.ascending)
.key(function(d) { return d.priority; }).sortKeys(function(a,b) { return priority_order.indexOf(a) - priority_order.indexOf(b); })
.rollup(function(leaves) { return leaves.length; })
.entries(csv_data);
$("#ex6").html(JSON.stringify(nested_data, null, 3));
var priority_order = ['MUST', "SHOULD", 'COULD', 'WISH'];
var nested_data = d3.nest()
.key(function(d) { return d.status; }).sortKeys(d3.ascending)
.key(function(d) { return d.priority; }).sortKeys(function(a,b) { return priority_order.indexOf(a) - priority_order.indexOf(b); })
.sortValues(function(a,b) { return parseFloat(a.time) - parseFloat(b.time); } )
.entries(csv_data);
$("#ex7").html(JSON.stringify(nested_data, null, 3));
var priority_order = ['MUST', "SHOULD", 'COULD', 'WISH'];
var nested_data = d3.nest()
.key(function(d) { return d.status; }).sortKeys(d3.ascending)
.key(function(d) { return d.priority; }).sortKeys(function(a,b) { return priority_order.indexOf(a) - priority_order.indexOf(b); })
.sortValues(function(a,b) { return ((a.who < b.who)
? -1
: 1);
return 0;} )
.entries(csv_data);
$("#ex8").html(JSON.stringify(nested_data, null, 3));
var nested_data = d3.nest()
.rollup(function(leaves) { return leaves.length; })
.entries(csv_data);
$("#ex9").html(JSON.stringify(nested_data, null, 3));
var nested_data = d3.nest()
.key(function(d) { return d.who}).sortKeys(d3.ascending)
.rollup(function(leaves) { return leaves.length; })
.entries(csv_data);
var list = d3.select("#ex10").append("select")
list.selectAll("option")
.data(nested_data)
.enter()
.append("option")
.attr("value", function(d) {return d.key;})
.text(function(d) {
return d.key; });
});
</script>
</body>
</html>
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