| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Mon, 04 Oct 2010 01:32:07 +0300 | |
| changeset 2 | 303757a437d3 |
| parent 0 | 4f2f89ce4247 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (C) 2007 Apple Inc. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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var count = output.length; |
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var itemTotals = {};
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itemTotals.length = count; |
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var total = 0; |
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var categoryTotals = {};
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var testTotalsByCategory = {};
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var mean = 0; |
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var categoryMeans = {};
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var testMeansByCategory = {};
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var stdDev = 0; |
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var categoryStdDevs = {};
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var testStdDevsByCategory = {};
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var stdErr = 0; |
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var categoryStdErrs = {};
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var testStdErrsByCategory = {};
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function initialize() |
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{
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itemTotals = {total: []};
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for (var i = 0; i < categories.length; i++) {
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var category = categories[i]; |
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itemTotals[category] = []; |
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categoryTotals[category] = 0; |
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testTotalsByCategory[category] = {};
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categoryMeans[category] = 0; |
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testMeansByCategory[category] = {};
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categoryStdDevs[category] = 0; |
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testStdDevsByCategory[category] = {};
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categoryStdErrs[category] = 0; |
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testStdErrsByCategory[category] = {};
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} |
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for (var i = 0; i < tests.length; i++) {
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var test = tests[i]; |
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itemTotals[test] = []; |
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var category = test.replace(/-.*/, ""); |
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testTotalsByCategory[category][test] = 0; |
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testMeansByCategory[category][test] = 0; |
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testStdDevsByCategory[category][test] = 0; |
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testStdErrsByCategory[category][test] = 0; |
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} |
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for (var i = 0; i < count; i++) {
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itemTotals["total"][i] = 0; |
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for (var category in categoryTotals) {
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itemTotals[category][i] = 0; |
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for (var test in testTotalsByCategory[category]) {
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itemTotals[test][i] = 0; |
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} |
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} |
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} |
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} |
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function computeItemTotals() |
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{
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for (var i = 0; i < output.length; i++) {
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var result = output[i]; |
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for (var test in result) {
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var time = result[test]; |
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var category = test.replace(/-.*/, ""); |
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itemTotals["total"][i] += time; |
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itemTotals[category][i] += time; |
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itemTotals[test][i] += time; |
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} |
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} |
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} |
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99 |
function computeTotals() |
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{
|
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for (var i = 0; i < output.length; i++) {
|
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var result = output[i]; |
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for (var test in result) {
|
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var time = result[test]; |
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var category = test.replace(/-.*/, ""); |
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total += time; |
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categoryTotals[category] += time; |
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testTotalsByCategory[category][test] += time; |
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} |
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} |
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} |
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112 |
|
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function computeMeans() |
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{
|
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mean = total / count; |
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for (var category in categoryTotals) {
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categoryMeans[category] = categoryTotals[category] / count; |
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for (var test in testTotalsByCategory[category]) {
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testMeansByCategory[category][test] = testTotalsByCategory[category][test] / count; |
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} |
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} |
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} |
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|
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function standardDeviation(mean, items) |
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{
|
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var deltaSquaredSum = 0; |
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for (var i = 0; i < items.length; i++) {
|
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var delta = items[i] - mean; |
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deltaSquaredSum += delta * delta; |
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} |
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variance = deltaSquaredSum / (items.length - 1); |
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return Math.sqrt(variance); |
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} |
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134 |
|
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function computeStdDevs() |
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{
|
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stdDev = standardDeviation(mean, itemTotals["total"]); |
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for (var category in categoryStdDevs) {
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categoryStdDevs[category] = standardDeviation(categoryMeans[category], itemTotals[category]); |
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} |
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for (var category in categoryStdDevs) {
|
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for (var test in testStdDevsByCategory[category]) {
|
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testStdDevsByCategory[category][test] = standardDeviation(testMeansByCategory[category][test], itemTotals[test]); |
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} |
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} |
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} |
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|
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function computeStdErrors() |
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{
|
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var sqrtCount = Math.sqrt(count); |
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151 |
|
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stdErr = stdDev / sqrtCount; |
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for (var category in categoryStdErrs) {
|
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categoryStdErrs[category] = categoryStdDevs[category] / sqrtCount; |
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} |
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for (var category in categoryStdDevs) {
|
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for (var test in testStdErrsByCategory[category]) {
|
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testStdErrsByCategory[category][test] = testStdDevsByCategory[category][test] / sqrtCount; |
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} |
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} |
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|
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} |
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|
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var tDistribution = [NaN, NaN, 12.71, 4.30, 3.18, 2.78, 2.57, 2.45, 2.36, 2.31, 2.26, 2.23, 2.20, 2.18, 2.16, 2.14, 2.13, 2.12, 2.11, 2.10, 2.09, 2.09, 2.08, 2.07, 2.07, 2.06, 2.06, 2.06, 2.05, 2.05, 2.05, 2.04, 2.04, 2.04, 2.03, 2.03, 2.03, 2.03, 2.03, 2.02, 2.02, 2.02, 2.02, 2.02, 2.02, 2.02, 2.01, 2.01, 2.01, 2.01, 2.01, 2.01, 2.01, 2.01, 2.01, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 2.00, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.99, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.98, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.97, 1.96]; |
|
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var tMax = tDistribution.length; |
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var tLimit = 1.96; |
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167 |
|
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function tDist(n) |
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{
|
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if (n > tMax) |
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return tLimit; |
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return tDistribution[n]; |
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} |
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|
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|
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176 |
function formatResult(meanWidth, mean, stdErr, n) |
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177 |
{
|
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var meanString = mean.toFixed(1).toString(); |
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while (meanString.length < meanWidth) {
|
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meanString = " " + meanString; |
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181 |
} |
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182 |
|
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if (n == 1) |
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return meanString + "ms"; |
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185 |
|
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return meanString + "ms +/- " + ((tDist(n) * stdErr / mean) * 100).toFixed(1) + "%"; |
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187 |
} |
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188 |
|
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function computeLabelWidth() |
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190 |
{
|
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var width = "Total".length; |
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192 |
for (var category in categoryMeans) {
|
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if (category.length + 2 > width) |
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width = category.length + 2; |
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195 |
} |
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for (var i = 0; i < tests.length; i++) {
|
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var shortName = tests[i].replace(/^[^-]*-/, ""); |
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if (shortName.length + 4 > width) |
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width = shortName.length + 4; |
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200 |
} |
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201 |
|
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return width; |
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} |
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204 |
|
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function computeMeanWidth() |
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206 |
{
|
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var width = mean.toFixed(1).toString().length; |
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for (var category in categoryMeans) {
|
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var candidate = categoryMeans[category].toFixed(2).toString().length; |
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if (candidate > width) |
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width = candidate; |
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for (var test in testMeansByCategory[category]) {
|
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var candidate = testMeansByCategory[category][test].toFixed(2).toString().length; |
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if (candidate > width) |
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width = candidate; |
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216 |
} |
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} |
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218 |
|
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return width; |
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} |
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221 |
|
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function resultLine(labelWidth, indent, label, meanWidth, mean, stdErr) |
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{
|
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var result = ""; |
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for (i = 0; i < indent; i++) {
|
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result += " "; |
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} |
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228 |
|
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result += label + ": "; |
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230 |
|
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for (i = 0; i < (labelWidth - (label.length + indent)); i++) {
|
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result += " "; |
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233 |
} |
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|
234 |
|
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235 |
return result + formatResult(meanWidth, mean, stdErr, count); |
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236 |
} |
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|
237 |
|
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function printOutput() |
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Revision: 201037
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239 |
{
|
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Revision: 201037
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240 |
var labelWidth = computeLabelWidth(); |
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Revision: 201037
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241 |
var meanWidth = computeMeanWidth(); |
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|
242 |
|
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Revision: 201037
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243 |
print("\n");
|
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Revision: 201037
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244 |
print("============================================");
|
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Revision: 201037
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245 |
if (count == 1) |
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246 |
print("RESULTS");
|
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|
247 |
else |
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Revision: 201037
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|
248 |
print("RESULTS (means and 95% confidence intervals)");
|
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Revision: 201037
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249 |
print("--------------------------------------------");
|
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Revision: 201037
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250 |
print(resultLine(labelWidth, 0, "Total", meanWidth, mean, stdErr)); |
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Revision: 201037
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|
251 |
print("--------------------------------------------");
|
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Revision: 201037
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|
252 |
for (var category in categoryMeans) {
|
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Revision: 201037
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|
253 |
print("");
|
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Revision: 201037
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254 |
print(resultLine(labelWidth, 2, category, meanWidth, categoryMeans[category], categoryStdErrs[category])); |
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Revision: 201037
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|
255 |
for (var test in testMeansByCategory[category]) {
|
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Revision: 201037
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256 |
var shortName = test.replace(/^[^-]*-/, ""); |
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Revision: 201037
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|
257 |
print(resultLine(labelWidth, 4, shortName, meanWidth, testMeansByCategory[category][test], testStdErrsByCategory[category][test])); |
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|
258 |
} |
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|
259 |
} |
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|
260 |
} |
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Revision: 201037
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diff
changeset
|
261 |
|
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Revision: 201037
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262 |
initialize(); |
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Revision: 201037
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|
263 |
computeItemTotals(); |
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Revision: 201037
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diff
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|
264 |
computeTotals(); |
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Revision: 201037
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265 |
computeMeans(); |
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Revision: 201037
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|
266 |
computeStdDevs(); |
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Revision: 201037
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|
267 |
computeStdErrors(); |
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Revision: 201037
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268 |
printOutput(); |