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#include <labplot.h>
int main(int argc, char** argv) {
// create a spreadsheet and import the data into it
auto* spreadsheet = new Spreadsheet(QStringLiteral("data"));
AsciiFilter filter;
filter.readDataFromFile(QStringLiteral("data.txt"), spreadsheet);
// create a worksheet
auto* worksheet = new Worksheet(QStringLiteral("worksheet"));
// create a plot area and add it to the worksheet
auto* plotArea = new CartesianPlot(QStringLiteral("plot area"));
plotArea->setType(CartesianPlot::Type::FourAxes);
plotArea->addLegend();
worksheet->addChild(plotArea);
// create a histogram for the imported data and add it to the plot area
auto* histogram = new Histogram(QStringLiteral("histogram"));
histogram->setNormalization(Histogram::Normalization::ProbabilityDensity);
histogram->setDataColumn(spreadsheet->column(0));
plotArea->addChild(histogram);
// perform a fit to the raw data and show it
auto* fitCurve = new XYFitCurve(QStringLiteral("fit"));
fitCurve->setDataSourceType(XYAnalysisCurve::DataSourceType::Histogram);
fitCurve->setDataSourceHistogram(histogram);
plotArea->addChild(histogram);
// initialize the fit
auto fitData = fitCurve->fitData();
fitData.modelCategory = nsl_fit_model_distribution;
fitData.modelType = nsl_sf_stats_gaussian;
fitData.algorithm = nsl_fit_algorithm_ml; // ML distribution fit
XYFitCurve::initFitData(fitData);
fitCurve->setFitData(fitData);
// perform the actual fit
fitCurve->recalculate();
// apply the theme "Dracula"
worksheet->setTheme(QStringLiteral("Dracula"));
// export the worksheet to PDF
worksheet->exportToFile(QStringLiteral("result.pdf"), Worksheet::ExportFormat::PDF);
}
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