+++ /dev/null
-<!DOCTYPE html>
-<html>
- <head>
- <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
- <title>significant figures</title>
- <!--[if IE]>
- <script type="text/javascript" src="../excanvas.js"></script>
- <![endif]-->
- <script type="text/javascript" src="../strftime/strftime-min.js"></script>
- <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
- <script type="text/javascript" src="../dygraph-canvas.js"></script>
- <script type="text/javascript" src="../dygraph.js"></script>
- </head>
- <body>
- <p>Tests for various inputs to Dygraph.significantFigures(). All tests
- should have result PASS.</p>
- <div id="tests"></div>
-
- <script type="text/javascript">
- // Helper functions for generating an HTML table for holding the test
- // results.
- createRow = function(columnType, columns) {
- var row = document.createElement('tr');
- for (var i = 0; i < columns.length; i ++) {
- var th = document.createElement(columnType);
- var text = document.createTextNode(columns[i]);
- th.appendChild(text);
- row.appendChild(th);
- };
- return row;
- };
-
- createHeaderRow = function(columns) {
- return createRow('th', columns);
- };
-
- createDataRow = function(columns) {
- return createRow('td', columns);
- };
-
- createTable = function(headerColumns, dataColumnsList) {
- var table = document.createElement('table');
- table.appendChild(createHeaderRow(headerColumns));
- for (var i = 0; i < dataColumnsList.length; i++) {
- table.appendChild(createDataRow(dataColumnsList[i]));
- }
- table.setAttribute('border', '1');
- return table;
- };
-
- // input gives input floating point in string form
- // expected gives number of significant figures
- var testData = [
- {input: '1.0', expected: 1},
- {input: '1.0000', expected: 1},
- {input: '3.14159', expected: 6},
- {input: '3.05', expected: 3},
- {input: '3.0000001', expected: 8},
- {input: '1.999999999999', expected: 13} // = 13 digits.
- ];
-
- var headers = ['Input', 'Output', 'Expected', 'Test Result'];
- var data = [];
-
- for (var i = 0; i < testData.length; i++) {
- var test = testData[i];
- var output = Dygraph.significantFigures(parseFloat(test.input));
- data[i] = [test.input, output, test.expected,
- (output == test.expected ? 'PASS' : 'FAIL')];
- }
-
- var root = document.getElementById('tests');
- root.appendChild(createTable(headers, data));
- </script>
-
- <br>
- <br>
-
- <p>Check for correct number of significant figures with very small
- y values. Both plots have the same input x,y values.</p>
-
- <div id="smallvals1" style="width:600px; height:300px;"></div>
- <br>
- <br>
- <div id="smallvals2" style="width:600px; height:300px;"></div>
-
- <script type="text/javascript">
- var data = [
- [2.036e-7, 1.02e-7],
- [2.125e-7, 1.1e-7],
- [2.212e-7, 1.2e-7],
- [2.333e-7, 1.522e-7]
- ];
-
- new Dygraph(document.getElementById("smallvals1"), data,
- {
- labels: ["Date","CustomFormatting"],
- xValueFormatter: function(x) { return x.toPrecision(4); },
- yValueFormatter: function(x) { return x.toPrecision(3); }
- });
-
- new Dygraph(document.getElementById("smallvals2"), data,
- {
- labels: ["Date","DefaultFormat"]
- });
- </script>
- </body>
-</html>
projects / dygraphs.git / commitdiff