mirror of
https://github.com/jkriege2/JKQtPlotter.git
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118 lines
4.8 KiB
C++
118 lines
4.8 KiB
C++
/** \example boxplot.cpp
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* Shows how to draw Boxplots with JKQTPlotter
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*
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* \ref JKQTPlotterBoxplotsGraphs
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*/
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#include <QApplication>
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#include "jkqtplotter/jkqtplotter.h"
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#include "jkqtplotter/graphs/jkqtpscatter.h"
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#include "jkqtplotter/graphs/jkqtpboxplot.h"
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int main(int argc, char* argv[])
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{
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QApplication app(argc, argv);
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// 1. create a plotter window and get a pointer to the internal datastore (for convenience)
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JKQTPlotter plot;
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plot.getPlotter()->setUseAntiAliasingForGraphs(true); // nicer (but slower) plotting
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plot.getPlotter()->setUseAntiAliasingForSystem(true); // nicer (but slower) plotting
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plot.getPlotter()->setUseAntiAliasingForText(true); // nicer (but slower) text rendering
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JKQTPDatastore* ds=plot.getDatastore();
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// 2. now we create data for the boxplots
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QVector<double> POS, POSY, MEDIAN, MEAN, Q25, Q75, MIN, MAX, OUTLIERSX, OUTLIERSY;
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POS << 1 << 4 << 7 << 10;
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POSY << -1 << -2 << -3 << -4;
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MIN << 2 << 3 << 2.5 << 6;
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Q25 << 4 << 4.5 << 5 << 7;
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MEDIAN << 5 << 6 << 7 << 9;
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MEAN << 5.5 << 5.2 << 8 << 8;
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Q75 << 6 << 7 << 9 << 11;
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MAX << 8 << 7.5 << 11 << 12;
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// ... and some outliers (as (x,y)-pairs)
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OUTLIERSX << 4 << 4 << 4 << 4 << 4 << 10 << 10 << 10 << 10 << 10 << 10 << 10;
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OUTLIERSY << 1 << 0.5 << 1.3 << 8 << 8.1 << 5 << 4 << 12.2 << 13 << 12.5 << 13.5 << 13.1;
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// 3. make data available to JKQTPlotter by adding it to the internal datastore.
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size_t columnPOS=ds->addCopiedColumn(POS, "POS");
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size_t columnPOSY=ds->addCopiedColumn(POSY, "POSY");
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size_t columnMIN=ds->addCopiedColumn(MIN, "MIN");
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size_t columnQ25=ds->addCopiedColumn(Q25, "Q25");
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size_t columnMEDIAN=ds->addCopiedColumn(MEDIAN, "MEDIAN");
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size_t columnMEAN=ds->addCopiedColumn(MEAN, "MEAN");
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size_t columnQ75=ds->addCopiedColumn(Q75, "Q75");
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size_t columnMAX=ds->addCopiedColumn(MAX, "MAX");
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size_t columnOUTLIERSX=ds->addCopiedColumn(OUTLIERSX, "OUTLIERSX");
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size_t columnOUTLIERSY=ds->addCopiedColumn(OUTLIERSY, "OUTLIERSY");
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// 4. create a graph of vertical boxplots:
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JKQTPBoxplotVerticalGraph* graph=new JKQTPBoxplotVerticalGraph(&plot);
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graph->setPositionColumn(columnPOS);
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graph->setMinColumn(columnMIN);
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graph->setPercentile25Column(columnQ25);
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graph->setMedianColumn(columnMEDIAN);
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graph->setMeanColumn(columnMEAN);
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graph->setPercentile75Column(columnQ75);
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graph->setMaxColumn(columnMAX);
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graph->setTitle("vertical Boxplots");
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// 5. outliers need to be drawn separately
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JKQTPXYLineGraph* graphOutliers=new JKQTPXYLineGraph(&plot);
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graphOutliers->setXColumn(columnOUTLIERSX);
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graphOutliers->setYColumn(columnOUTLIERSY);
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graphOutliers->setTitle("outliers");
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// make the color a darker shade of the color of graph
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graphOutliers->setColor(graph->getLineColor().darker());
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graphOutliers->setSymbolFillColor(QColor("white"));
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// draw outliers as small circles, without lines
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graphOutliers->setSymbolType(JKQTPCircle);
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graphOutliers->setDrawLine(false);
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graphOutliers->setSymbolSize(7);
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// 6. create a graph of horizontal boxplots:
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JKQTPBoxplotHorizontalGraph* graphh=new JKQTPBoxplotHorizontalGraph(&plot);
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graphh->setPositionColumn(columnPOSY);
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graphh->setMinColumn(columnMIN);
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graphh->setPercentile25Column(columnQ25);
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graphh->setMedianColumn(columnMEDIAN);
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graphh->setMeanColumn(columnMEAN);
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graphh->setPercentile75Column(columnQ75);
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graphh->setMaxColumn(columnMAX);
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graphh->setTitle("horizontal Boxplots");
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// 6.1 make fill collor a lighter shade of the outline color
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graphh->setFillColor(graphh->getLineColor().lighter());
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// 6.2 make whiskers dashed
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graphh->setWhiskerLineStyle(Qt::DashLine);
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graphh->setWhiskerLineColor(graphh->getLineColor().darker());
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// 6.3 make whiskers caps solid and thick
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graphh->setWhiskerCapLineStyle(Qt::SolidLine);
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graphh->setWhiskerCapLineColor(graphh->getLineColor().darker());
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graphh->setWhiskerCapLineWidth(graphh->getLineWidth()*2.5);
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// 6.4 change mean symbol
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graphh->setMeanSymbolType(JKQTPFilledStar);
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graphh->setMeanFillColor(QColor("silver"));
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// 6.5 change median line color
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graphh->setMedianLineColor(QColor("darkgreen"));
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// 6.6 change box width to 75% of distance
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graphh->setBoxWidthRelative(0.75);
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// 7. add the graphs to the plot, so it is actually displayed
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plot.addGraph(graph);
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plot.addGraph(graphOutliers);
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plot.addGraph(graphh);
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// 8. autoscale the plot so the graph is contained
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plot.zoomToFit();
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// 9. Move key to top-left
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plot.getPlotter()->setKeyPosition(JKQTPKeyInsideTopLeft);
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// show plotter and make it a decent size
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plot.show();
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plot.resize(800,800);
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return app.exec();
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}
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