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1 /****************************************************************************
1 /****************************************************************************
2 **
2 **
3 ** Copyright (C) 2012 Digia Plc
3 ** Copyright (C) 2012 Digia Plc
4 ** All rights reserved.
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
8 **
9 ** $QT_BEGIN_LICENSE$
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
13 ** a written agreement between you and Digia.
14 **
14 **
15 ** If you have questions regarding the use of this file, please use
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
17 ** $QT_END_LICENSE$
18 **
18 **
19 ****************************************************************************/
19 ****************************************************************************/
20
20
21 #include "boxdatareader.h"
21 #include "boxdatareader.h"
22
22
23 #include <QDebug>
24
25 BoxDataReader::BoxDataReader(QIODevice *device) :
23 BoxDataReader::BoxDataReader(QIODevice *device) :
26 QTextStream(device)
24 QTextStream(device)
27 {
25 {
28 }
26 }
29
27
30 QBoxSet* BoxDataReader::readBox()
28 QBoxSet* BoxDataReader::readBox()
31 {
29 {
32 QString line = readLine();
30 QString line = readLine();
33 if (line.startsWith("#"))
31 if (line.startsWith("#"))
34 return 0;
32 return 0;
35
33
36 QStringList strList = line.split(" ", QString::SkipEmptyParts);
34 QStringList strList = line.split(" ", QString::SkipEmptyParts);
37 sortedList.clear();
35 sortedList.clear();
38
36
39 for (int i = 1; i < strList.count(); i++) {
37 for (int i = 1; i < strList.count(); i++) {
40 sortedList.append(strList.at(i).toDouble());
38 sortedList.append(strList.at(i).toDouble());
41 }
39 }
42
40
43 qSort(sortedList.begin(), sortedList.end());
41 qSort(sortedList.begin(), sortedList.end());
44
42
45 int count = sortedList.count();
43 int count = sortedList.count();
46
44
47 QBoxSet *box = new QBoxSet(strList.first());
45 QBoxSet *box = new QBoxSet(strList.first());
48 box->setLowerExtreme(sortedList.first());
46 box->setLowerExtreme(sortedList.first());
49 box->setUpperExtreme(sortedList.last());
47 box->setUpperExtreme(sortedList.last());
50 box->setMedian(findMedian(0, count));
48 box->setMedian(findMedian(0, count));
51 box->setLowerQuartile(findMedian(0, count / 2));
49 box->setLowerQuartile(findMedian(0, count / 2));
52 if (count % 2)
50 if (count % 2)
53 box->setUpperQuartile(findMedian(count / 2 + 1, count));
51 box->setUpperQuartile(findMedian(count / 2 + 1, count));
54 else // even amount of numbers
52 else // even amount of numbers
55 box->setUpperQuartile(findMedian(count / 2, count));
53 box->setUpperQuartile(findMedian(count / 2, count));
56
54
57 qDebug() << "Box = " << box->lowerExtreme() << ", " << box->lowerQuartile() << ", " <<
58 box->median() << ", " << box->upperQuartile() << ", " << box->upperExtreme();
59
60 return box;
55 return box;
61 }
56 }
62
57
63 qreal BoxDataReader::findMedian(int begin, int end)
58 qreal BoxDataReader::findMedian(int begin, int end)
64 {
59 {
65 int count = end - begin;
60 int count = end - begin;
66 if (count % 2 ) {
61 if (count % 2 ) {
67 return sortedList.at((int) (count/2) + begin);
62 return sortedList.at((int) (count/2) + begin);
68 } else {
63 } else {
69 qreal right = sortedList.at(count / 2 + begin);
64 qreal right = sortedList.at(count / 2 + begin);
70 qreal left = sortedList.at(count / 2 - 1 + begin);
65 qreal left = sortedList.at(count / 2 - 1 + begin);
71 return (right + left) / 2.0;
66 return (right + left) / 2.0;
72 }
67 }
73 }
68 }
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@@ -1,92 +1,87
1 /****************************************************************************
1 /****************************************************************************
2 **
2 **
3 ** Copyright (C) 2012 Digia Plc
3 ** Copyright (C) 2012 Digia Plc
4 ** All rights reserved.
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
8 **
9 ** $QT_BEGIN_LICENSE$
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
13 ** a written agreement between you and Digia.
14 **
14 **
15 ** If you have questions regarding the use of this file, please use
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
17 ** $QT_END_LICENSE$
18 **
18 **
19 ****************************************************************************/
19 ****************************************************************************/
20
20
21 #include <QApplication>
21 #include <QApplication>
22 #include <QMainWindow>
22 #include <QMainWindow>
23 #include <QChartView>
23 #include <QChartView>
24 #include <QBoxPlotSeries>
24 #include <QBoxPlotSeries>
25 #include <QBoxSet>
25 #include <QBoxSet>
26 #include <QLegend>
26 #include <QLegend>
27 #include <QBarCategoryAxis>
27 #include <QBarCategoryAxis>
28
28
29 #include "boxdatareader.h"
29 #include "boxdatareader.h"
30
30
31 #include <QDebug>
32
33 QTCOMMERCIALCHART_USE_NAMESPACE
31 QTCOMMERCIALCHART_USE_NAMESPACE
34
32
35 int main(int argc, char *argv[])
33 int main(int argc, char *argv[])
36 {
34 {
37 QApplication a(argc, argv);
35 QApplication a(argc, argv);
38 //![1]
36 //![1]
39
37
40 //![2]
38 //![2]
41 QBoxPlotSeries *series = new QBoxPlotSeries();
39 QBoxPlotSeries *series = new QBoxPlotSeries();
42 series->setName("Box & Whiskers");
40 series->setName("Box & Whiskers");
43 //![2]
41 //![2]
44
42
45 QFile stockData(":stock");
43 QFile stockData(":stock");
46 if (!stockData.open(QIODevice::ReadOnly | QIODevice::Text)) {
44 if (!stockData.open(QIODevice::ReadOnly | QIODevice::Text)) {
47 return 1;
45 return 1;
48 }
46 }
49
47
50 BoxDataReader dataReader(&stockData);
48 BoxDataReader dataReader(&stockData);
51 while (!dataReader.atEnd()) {
49 while (!dataReader.atEnd()) {
52 QBoxSet *set = dataReader.readBox();
50 QBoxSet *set = dataReader.readBox();
53 if (set)
51 if (set)
54 series->append(set);
52 series->append(set);
55 }
53 }
56
54
57 //![3]
55 //![3]
58 QChart *chart = new QChart();
56 QChart *chart = new QChart();
59 chart->addSeries(series);
57 chart->addSeries(series);
60 chart->setTitle("Simple boxplotchart example");
58 chart->setTitle("Simple boxplotchart example");
61 chart->setAnimationOptions(QChart::SeriesAnimations);
59 chart->setAnimationOptions(QChart::SeriesAnimations);
62 //![3]
60 //![3]
63
61
64 //![4]
62 //![4]
65 //QStringList categories;
66 //categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun" << "Jul" << "Aug" << "Sep" << "Oct" << "Nov" << "Dec";
67 QBarCategoryAxis *axis = new QBarCategoryAxis();
63 QBarCategoryAxis *axis = new QBarCategoryAxis();
68 //axis->append(categories);
69 chart->createDefaultAxes();
64 chart->createDefaultAxes();
70 chart->setAxisX(axis, series);
65 chart->setAxisX(axis, series);
71 //![4]
66 //![4]
72
67
73 //![5]
68 //![5]
74 chart->legend()->setVisible(true);
69 chart->legend()->setVisible(true);
75 chart->legend()->setAlignment(Qt::AlignBottom);
70 chart->legend()->setAlignment(Qt::AlignBottom);
76 //![5]
71 //![5]
77
72
78 //![6]
73 //![6]
79 QChartView *chartView = new QChartView(chart);
74 QChartView *chartView = new QChartView(chart);
80 chartView->setRenderHint(QPainter::Antialiasing);
75 chartView->setRenderHint(QPainter::Antialiasing);
81 //![6]
76 //![6]
82
77
83 //![7]
78 //![7]
84 QMainWindow window;
79 QMainWindow window;
85 window.setCentralWidget(chartView);
80 window.setCentralWidget(chartView);
86 window.resize(600, 400);
81 window.resize(600, 400);
87 window.show();
82 window.show();
88 //![7]
83 //![7]
89
84
90 return a.exec();
85 return a.exec();
91 }
86 }
92
87
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