Examples with PeakList net.sf.mzmine.datamodel.PeakList used on opensource projects

Example 41 with PeakList

use of net.sf.mzmine.datamodel.PeakList in project mzmine2 by mzmine.

the class HierarAlignerGCTask method run.

/**
 * @see Runnable#run()
 */
public void run() {
    // Check options validity
    if ((Math.abs(mzWeight) < EPSILON) && (Math.abs(rtWeight) < EPSILON)) {
        setStatus(TaskStatus.ERROR);
        setErrorMessage("Cannot run alignment, all the weight parameters are zero!");
        return;
    }
    setStatus(TaskStatus.PROCESSING);
    logger.info("Running join aligner");
    // TIME STUFF
    long startTime, endTime;
    float ms;
    // 
    if (DEBUG)
        startTime = System.currentTimeMillis();
    // MEMORY STUFF
    Runtime run_time = Runtime.getRuntime();
    Long prevTotal = 0l;
    Long prevFree = run_time.freeMemory();
    if (DEBUG)
        printMemoryUsage(logger, run_time, prevTotal, prevFree, "START TASK...");
    // - third for actual alignment
    for (int i = 0; i < peakLists.length; i++) {
        totalRows += peakLists[i].getNumberOfRows() * 3;
    }
    // Collect all data files
    Vector<RawDataFile> allDataFiles = new Vector<RawDataFile>();
    for (PeakList peakList : peakLists) {
        for (RawDataFile dataFile : peakList.getRawDataFiles()) {
            // Each data file can only have one column in aligned feature list
            if (allDataFiles.contains(dataFile)) {
                setStatus(TaskStatus.ERROR);
                setErrorMessage("Cannot run alignment, because file " + dataFile + " is present in multiple feature lists");
                return;
            }
            allDataFiles.add(dataFile);
        }
    }
    // Create a new aligned feature list
    alignedPeakList = new SimplePeakList(peakListName, allDataFiles.toArray(new RawDataFile[0]));
    if (DEBUG)
        printMemoryUsage(logger, run_time, prevTotal, prevFree, "COMPOUND DETECTED");
    /**
     * Alignment mapping *
     */
    // Iterate source feature lists
    Hashtable<SimpleFeature, Double> rtPeaksBackup = new Hashtable<SimpleFeature, Double>();
    Hashtable<PeakListRow, Object[]> infoRowsBackup = new Hashtable<PeakListRow, Object[]>();
    // Since clustering is now order independent, option removed!
    // Build comparison order
    ArrayList<Integer> orderIds = new ArrayList<Integer>();
    for (int i = 0; i < peakLists.length; ++i) {
        orderIds.add(i);
    }
    Integer[] newIds = orderIds.toArray(new Integer[orderIds.size()]);
    // 
    // TriangularMatrix distances = null;
    DistanceMatrix distancesGNF_Tri = null;
    DistanceMatrix distancesGNF_Tri_Bkp = null;
    int nbPeaks = 0;
    for (int i = 0; i < newIds.length; ++i) {
        PeakList peakList = peakLists[newIds[i]];
        nbPeaks += peakList.getNumberOfRows();
    }
    // If 'Hybrid' or no distance matrix: no need for a matrix
    if (CLUSTERER_TYPE == ClustererType.HYBRID || !saveRAMratherThanCPU_1) {
        // distances = new double[nbPeaks][nbPeaks];
        int nRowCount = nbPeaks;
        distancesGNF_Tri = new DistanceMatrixTriangular1D2D(nRowCount);
    }
    full_rows_list = new ArrayList<>();
    for (int i = 0; i < newIds.length; ++i) {
        PeakList peakList = peakLists[newIds[i]];
        PeakListRow[] allRows = peakList.getRows();
        for (int j = 0; j < allRows.length; ++j) {
            PeakListRow row = allRows[j];
            full_rows_list.add(row);
        }
    }
    RowVsRowDistanceProvider distProvider = new RowVsRowDistanceProvider(project, // rtAdjustementMapping,
    full_rows_list, mzWeight, rtWeight, // rtToleranceAfter,
    maximumScore);
    // If 'Hybrid' or no distance matrix: no need for a matrix
    if (CLUSTERER_TYPE == ClustererType.HYBRID || !saveRAMratherThanCPU_1) {
        for (int x = 0; x < nbPeaks; ++x) {
            for (int y = x; y < nbPeaks; ++y) {
                float dist = (float) distProvider.getRankedDistance(x, y, mzTolerance.getMzTolerance(), rtTolerance.getTolerance(), minScore);
                // if (CLUSTERER_TYPE == ClustererType.CLASSIC_OLD)
                // distances.set(x, y , dist);
                // else
                distancesGNF_Tri.setValue(x, y, dist);
            }
            processedRows++;
            if (DEBUG)
                logger.info("Treating lists: " + (Math.round(100 * processedRows / (double) nbPeaks)) + " %");
        }
    }
    if (DEBUG)
        printMemoryUsage(logger, run_time, prevTotal, prevFree, "DISTANCES COMPUTED");
    // ////
    // Math.abs(row.getBestPeak().getRT() -
    double max_dist = maximumScore;
    // k_row.getBestPeak().getRT()) /
    // ((RangeUtils.rangeLength(rtRange) /
    // 2.0));
    // String newickCluster;
    List<List<Integer>> gnfClusters = null;
    // ////
    boolean do_verbose = true;
    boolean do_cluster = true;
    boolean do_print = (exportDendrogramAsTxt);
    boolean do_data = false;
    org.gnf.clustering.Node[] arNodes = null;
    int nRowCount = full_rows_list.size();
    String[] rowNames = null;
    if (do_print) {
        rowNames = new String[nRowCount];
        for (int i = 0; i < nRowCount; i++) {
            // rowNames[i] = "ID_" + i + "_" +
            // full_rows_list.get(i).getID();
            Feature peak = full_rows_list.get(i).getBestPeak();
            double rt = peak.getRT();
            int end = peak.getDataFile().getName().indexOf(" ");
            String short_fname = peak.getDataFile().getName().substring(0, end);
            rowNames[i] = "@" + rtFormat.format(rt) + "^[" + short_fname + "]";
        }
    }
    String outputPrefix = null;
    if (CLUSTERER_TYPE == ClustererType.CLASSIC) {
        // Pure Hierar!
        outputPrefix = "hierar_0";
        throw new IllegalStateException("'" + ClustererType.CLASSIC.toString() + "' algorithm not yet implemented!");
    } else if (CLUSTERER_TYPE == ClustererType.CACHED) {
        // TODO: ...!
        if (DEBUG_2)
            logger.info(distancesGNF_Tri.toString());
        if (saveRAMratherThanCPU_2) {
            // Requires: distances values will be
            // recomputed on demand during
            // "getValidatedClusters_3()"
            // No duplicate backup storage!
            distancesGNF_Tri_Bkp = null;
        } else {
            // Otherwise, backing up the distance matrix (matrix being
            // deeply changed during "clusterDM()", then no more
            // exploitable)
            distancesGNF_Tri_Bkp = new DistanceMatrixTriangular1D2D(distancesGNF_Tri);
            if (DEBUG)
                printMemoryUsage(logger, run_time, prevTotal, prevFree, "GNF CLUSTERER BACKUP MATRIX");
        }
        if (DEBUG)
            logger.info("Clustering...");
        if (distancesGNF_Tri != null)
            arNodes = org.gnf.clustering.sequentialcache.SequentialCacheClustering.clusterDM(distancesGNF_Tri, linkageStartegyType, null, nRowCount);
        distancesGNF_Tri = null;
        System.gc();
        if (DEBUG)
            printMemoryUsage(logger, run_time, prevTotal, prevFree, "GNF CLUSTERER DONE");
        if (DEBUG_2)
            logger.info(distancesGNF_Tri.toString());
        if (DEBUG_2)
            for (int i = 0; i < arNodes.length; i++) {
                logger.info("Node " + i + ": " + arNodes[i]);
            }
        // TODO: Use usual interfacing ...
        // ClusteringResult<org.gnf.clustering.Node> clust_res = new
        // ClusteringResult<>(
        // Arrays.asList(arNodes), null, 0, null);
        outputPrefix = "hierar_1";
    } else if (CLUSTERER_TYPE == ClustererType.HYBRID) {
        throw new IllegalStateException("'" + ClustererType.HYBRID.toString() + "' algorithm not yet implemented!");
    }
    // Sort Nodes by correlation score (Required in
    // 'getValidatedClusters_3')
    int[] rowOrder = new int[nRowCount];
    if (DEBUG)
        logger.info("Sorting tree nodes...");
    org.gnf.clustering.Utils.NodeSort(arNodes, nRowCount - 2, 0, rowOrder);
    if (do_cluster) {
        gnfClusters = getValidatedClusters_3(arNodes, 0.0f, newIds.length, max_dist, distancesGNF_Tri_Bkp, distProvider);
        // -- Print
        if (DEBUG_2 && do_verbose)
            for (int i = 0; i < gnfClusters.size(); i++) {
                List<Integer> cl = gnfClusters.get(i);
                String str = "";
                for (int j = 0; j < cl.size(); j++) {
                    int r = cl.get(j);
                    str += cl.get(j) + "^(" + full_rows_list.get(r).getID() + ", " + full_rows_list.get(r).getAverageRT() + ")" + " ";
                }
                logger.info(str);
            }
    }
    // File output
    int ext_pos = dendrogramTxtFilename.getAbsolutePath().lastIndexOf(".");
    outputPrefix = dendrogramTxtFilename.getAbsolutePath().substring(0, ext_pos);
    String outGtr = outputPrefix + ".gtr";
    String outCdt = outputPrefix + ".cdt";
    if (DEBUG)
        logger.info("Writing output to file...");
    int nColCount = 1;
    String[] colNames = new String[nColCount];
    colNames[nColCount - 1] = "Id";
    String sep = "\t";
    if (do_print) {
        try {
            float[] arFloats = new float[nRowCount];
            for (int i = 0; i < arFloats.length; i++) {
                arFloats[i] = i / 2.0f;
            }
            DataSource source = (do_data) ? new FloatSource1D(arFloats, nRowCount, nColCount) : null;
            /* org.gnf.clustering.Utils. */
            HierarAlignerGCTask.GenerateCDT(outCdt, source, /* null */
            nRowCount, nColCount, sep, rowNames, colNames, rowOrder);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        org.gnf.clustering.Utils.WriteTreeToFile(outGtr, nRowCount - 1, arNodes, true);
        if (DEBUG)
            printMemoryUsage(logger, run_time, prevTotal, prevFree, "GNF CLUSTERER FILES PRINTED");
    }
    // //// Arrange row clustered list with method 0,1,2
    List<List<PeakListRow>> clustersList = new ArrayList<>();
    // Build feature list row clusters
    for (List<Integer> cl : gnfClusters) {
        List<PeakListRow> rows_cluster = new ArrayList<>();
        for (int i = 0; i < cl.size(); i++) {
            rows_cluster.add(full_rows_list.get(cl.get(i)));
        }
        clustersList.add(rows_cluster);
        // 
        processedRows += rows_cluster.size();
    }
    if (DEBUG)
        printMemoryUsage(logger, run_time, prevTotal, prevFree, "GNF CLUSTERER CLUSTER_LIST");
    // Fill alignment table: One row per cluster
    for (List<PeakListRow> cluster : clustersList) {
        if (isCanceled())
            return;
        PeakListRow targetRow = new SimplePeakListRow(newRowID);
        newRowID++;
        alignedPeakList.addRow(targetRow);
        // 
        infoRowsBackup.put(targetRow, new Object[] { new HashMap<RawDataFile, Double[]>(), new HashMap<RawDataFile, PeakIdentity>(), new HashMap<RawDataFile, Double>() });
        for (PeakListRow row : cluster) {
            // Add all non-existing identities from the original row to the
            // aligned row
            // Set the preferred identity
            targetRow.setPreferredPeakIdentity(row.getPreferredPeakIdentity());
            // for (RawDataFile file : row.getRawDataFiles()) {
            for (RawDataFile file : alignedPeakList.getRawDataFiles()) {
                if (Arrays.asList(row.getRawDataFiles()).contains(file)) {
                    Feature originalPeak = row.getPeak(file);
                    if (originalPeak != null) {
                        targetRow.addPeak(file, originalPeak);
                    } else {
                        setStatus(TaskStatus.ERROR);
                        setErrorMessage("Cannot run alignment, no originalPeak");
                        return;
                    }
                }
            }
            // present
            for (PeakIdentity identity : row.getPeakIdentities()) {
                PeakIdentity clonedIdentity = (PeakIdentity) identity.clone();
                if (!PeakUtils.containsIdentity(targetRow, clonedIdentity))
                    targetRow.addPeakIdentity(clonedIdentity, false);
            }
        // processedRows++;
        }
    }
    // of the "targetRow.update()" used down there
    for (SimpleFeature peak : rtPeaksBackup.keySet()) {
        peak.setRT((double) rtPeaksBackup.get(peak));
    }
    /**
     * Post-processing... *
     */
    // Build reference RDFs index: We need an ordered reference here, to be
    // able to parse
    // correctly while reading back stored info
    RawDataFile[] rdf_sorted = alignedPeakList.getRawDataFiles().clone();
    Arrays.sort(rdf_sorted, new RawDataFileSorter(SortingDirection.Ascending));
    // Process
    for (PeakListRow targetRow : infoRowsBackup.keySet()) {
        if (isCanceled())
            return;
        // Refresh averaged RTs...
        ((SimplePeakListRow) targetRow).update();
    }
    // 
    if (DEBUG) {
        endTime = System.currentTimeMillis();
        ms = (endTime - startTime);
        logger.info("## >> Whole JoinAlignerGCTask processing took " + Float.toString(ms) + " ms.");
    }
    // ----------------------------------------------------------------------
    // Add new aligned feature list to the project
    this.project.addPeakList(alignedPeakList);
    if (DEBUG) {
        for (RawDataFile rdf : alignedPeakList.getRawDataFiles()) logger.info("RDF: " + rdf);
    }
    // Add task description to peakList
    alignedPeakList.addDescriptionOfAppliedTask(new SimplePeakListAppliedMethod(HierarAlignerGCTask.TASK_NAME, parameters));
    logger.info("Finished join aligner GC");
    setStatus(TaskStatus.FINISHED);
}

Example 42 with PeakList

use of net.sf.mzmine.datamodel.PeakList in project mzmine2 by mzmine.

the class JoinAlignerTask method run.

/**
 * @see Runnable#run()
 */
@Override
public void run() {
    if ((mzWeight == 0) && (rtWeight == 0)) {
        setStatus(TaskStatus.ERROR);
        setErrorMessage("Cannot run alignment, all the weight parameters are zero");
        return;
    }
    setStatus(TaskStatus.PROCESSING);
    logger.info("Running join aligner");
    // twice, first for score calculation, second for actual alignment.
    for (int i = 0; i < peakLists.length; i++) {
        totalRows += peakLists[i].getNumberOfRows() * 2;
    }
    // Collect all data files
    Vector<RawDataFile> allDataFiles = new Vector<RawDataFile>();
    for (PeakList peakList : peakLists) {
        for (RawDataFile dataFile : peakList.getRawDataFiles()) {
            // Each data file can only have one column in aligned feature list
            if (allDataFiles.contains(dataFile)) {
                setStatus(TaskStatus.ERROR);
                setErrorMessage("Cannot run alignment, because file " + dataFile + " is present in multiple feature lists");
                return;
            }
            allDataFiles.add(dataFile);
        }
    }
    // Create a new aligned feature list
    alignedPeakList = new SimplePeakList(peakListName, allDataFiles.toArray(new RawDataFile[0]));
    // Iterate source feature lists
    for (PeakList peakList : peakLists) {
        // Create a sorted set of scores matching
        TreeSet<RowVsRowScore> scoreSet = new TreeSet<RowVsRowScore>();
        PeakListRow[] allRows = peakList.getRows();
        // Calculate scores for all possible alignments of this row
        for (PeakListRow row : allRows) {
            if (isCanceled())
                return;
            // Calculate limits for a row with which the row can be aligned
            Range<Double> mzRange = mzTolerance.getToleranceRange(row.getAverageMZ());
            Range<Double> rtRange = rtTolerance.getToleranceRange(row.getAverageRT());
            // Get all rows of the aligned peaklist within parameter limits
            PeakListRow[] candidateRows = alignedPeakList.getRowsInsideScanAndMZRange(rtRange, mzRange);
            // Calculate scores and store them
            for (PeakListRow candidate : candidateRows) {
                if (sameChargeRequired) {
                    if (!PeakUtils.compareChargeState(row, candidate))
                        continue;
                }
                if (sameIDRequired) {
                    if (!PeakUtils.compareIdentities(row, candidate))
                        continue;
                }
                if (compareIsotopePattern) {
                    IsotopePattern ip1 = row.getBestIsotopePattern();
                    IsotopePattern ip2 = candidate.getBestIsotopePattern();
                    if ((ip1 != null) && (ip2 != null)) {
                        ParameterSet isotopeParams = parameters.getParameter(JoinAlignerParameters.compareIsotopePattern).getEmbeddedParameters();
                        if (!IsotopePatternScoreCalculator.checkMatch(ip1, ip2, isotopeParams)) {
                            continue;
                        }
                    }
                }
                // compare the similarity of spectra mass lists on MS1 or MS2 level
                if (compareSpectraSimilarity) {
                    DataPoint[] rowDPs = null;
                    DataPoint[] candidateDPs = null;
                    SpectralSimilarity sim = null;
                    // get data points of mass list of the representative scans
                    if (msLevel == 1) {
                        rowDPs = row.getBestPeak().getRepresentativeScan().getMassList(massList).getDataPoints();
                        candidateDPs = candidate.getBestPeak().getRepresentativeScan().getMassList(massList).getDataPoints();
                    }
                    // get data points of mass list of the best fragmentation scans
                    if (msLevel == 2) {
                        if (row.getBestFragmentation() != null && candidate.getBestFragmentation() != null) {
                            rowDPs = row.getBestFragmentation().getMassList(massList).getDataPoints();
                            candidateDPs = candidate.getBestFragmentation().getMassList(massList).getDataPoints();
                        } else
                            continue;
                    }
                    // compare mass list data points of selected scans
                    if (rowDPs != null && candidateDPs != null) {
                        // calculate similarity using SimilarityFunction
                        sim = createSimilarity(rowDPs, candidateDPs);
                        // user set threshold
                        if (sim == null) {
                            continue;
                        }
                    }
                }
                RowVsRowScore score = new RowVsRowScore(row, candidate, RangeUtils.rangeLength(mzRange) / 2.0, mzWeight, RangeUtils.rangeLength(rtRange) / 2.0, rtWeight);
                scoreSet.add(score);
            }
            processedRows++;
        }
        // Create a table of mappings for best scores
        Hashtable<PeakListRow, PeakListRow> alignmentMapping = new Hashtable<PeakListRow, PeakListRow>();
        // Iterate scores by descending order
        Iterator<RowVsRowScore> scoreIterator = scoreSet.iterator();
        while (scoreIterator.hasNext()) {
            RowVsRowScore score = scoreIterator.next();
            // Check if the row is already mapped
            if (alignmentMapping.containsKey(score.getPeakListRow()))
                continue;
            // Check if the aligned row is already filled
            if (alignmentMapping.containsValue(score.getAlignedRow()))
                continue;
            alignmentMapping.put(score.getPeakListRow(), score.getAlignedRow());
        }
        // Align all rows using mapping
        for (PeakListRow row : allRows) {
            PeakListRow targetRow = alignmentMapping.get(row);
            // If we have no mapping for this row, add a new one
            if (targetRow == null) {
                targetRow = new SimplePeakListRow(newRowID);
                newRowID++;
                alignedPeakList.addRow(targetRow);
            }
            // Add all peaks from the original row to the aligned row
            for (RawDataFile file : row.getRawDataFiles()) {
                targetRow.addPeak(file, row.getPeak(file));
            }
            // Add all non-existing identities from the original row to the
            // aligned row
            PeakUtils.copyPeakListRowProperties(row, targetRow);
            processedRows++;
        }
    }
    // Next feature list
    // Add new aligned feature list to the project
    project.addPeakList(alignedPeakList);
    // Add task description to peakList
    alignedPeakList.addDescriptionOfAppliedTask(new SimplePeakListAppliedMethod("Join aligner", parameters));
    logger.info("Finished join aligner");
    setStatus(TaskStatus.FINISHED);
}

Example 43 with PeakList

use of net.sf.mzmine.datamodel.PeakList in project mzmine2 by mzmine.

the class ScoreAligner method align.

/*
   * (non-Javadoc)
   * 
   * @see gcgcaligner.AbstractAligner#align()
   */
public PeakList align() {
    if (// Do the actual alignment if we already do not
    alignment == null) // have the result
    {
        Vector<RawDataFile> allDataFiles = new Vector<RawDataFile>();
        for (PeakList list : this.originalPeakList) {
            allDataFiles.addAll(Arrays.asList(list.getRawDataFiles()));
        }
        peaksTotal = 0;
        for (int i = 0; i < peakList.size(); i++) {
            peaksTotal += peakList.get(i).size();
        }
        alignment = new SimplePeakList(params.getParameter(PathAlignerParameters.peakListName).getValue(), allDataFiles.toArray(new RawDataFile[0]));
        List<AlignmentPath> addedPaths = getAlignmentPaths();
        int ID = 1;
        for (AlignmentPath p : addedPaths) {
            // Convert alignments to original order of files and add them to
            // final
            // Alignment data structure
            PeakListRow row = (PeakListRow) p.convertToAlignmentRow(ID++);
            alignment.addRow(row);
        }
    }
    PeakList curAlignment = alignment;
    return curAlignment;
}

Example 44 with PeakList

use of net.sf.mzmine.datamodel.PeakList in project mzmine2 by mzmine.

the class RansacAlignerSetupDialog method addDialogComponents.

/**
 * This function add all the additional components for this dialog over the original
 * ParameterSetupDialog.
 */
@Override
protected void addDialogComponents() {
    super.addDialogComponents();
    PeakList[] peakLists = MZmineCore.getProjectManager().getCurrentProject().getPeakLists();
    if (peakLists.length < 2)
        return;
    PeakList[] selectedPeakLists = MZmineCore.getDesktop().getSelectedPeakLists();
    // Preview check box
    previewCheckBox = new JCheckBox("Show preview of RANSAC alignment");
    previewCheckBox.addActionListener(this);
    previewCheckBox.setHorizontalAlignment(SwingConstants.CENTER);
    mainPanel.add(new JSeparator(), 0, getNumberOfParameters() + 1, 3, 1, 0, 0, GridBagConstraints.HORIZONTAL);
    mainPanel.add(previewCheckBox, 0, getNumberOfParameters() + 2, 3, 1, 0, 0, GridBagConstraints.HORIZONTAL);
    // Panel for the combo boxes with the feature lists
    JPanel comboPanel = new JPanel(new GridLayout(3, 1));
    peakListsComboX = new JComboBox<PeakList>(peakLists);
    peakListsComboX.addActionListener(this);
    peakListsComboY = new JComboBox<PeakList>(peakLists);
    peakListsComboY.addActionListener(this);
    comboPanel.add(peakListsComboX);
    comboPanel.add(peakListsComboY);
    alignmentPreviewButton = new JButton("Preview alignment");
    alignmentPreviewButton.addActionListener(this);
    comboPanel.add(alignmentPreviewButton);
    if (selectedPeakLists.length >= 2) {
        peakListsComboX.setSelectedItem(selectedPeakLists[0]);
        peakListsComboY.setSelectedItem(selectedPeakLists[1]);
    } else {
        peakListsComboX.setSelectedItem(peakLists[0]);
        peakListsComboY.setSelectedItem(peakLists[1]);
    }
    peakListsPanel = new JPanel();
    peakListsPanel.add(comboPanel);
    peakListsPanel.setVisible(false);
    // Panel for XYPlot
    pnlPlotXY = new JPanel(new BorderLayout());
    Border one = BorderFactory.createEtchedBorder(EtchedBorder.RAISED);
    Border two = BorderFactory.createEmptyBorder(10, 10, 10, 10);
    pnlPlotXY.setBorder(BorderFactory.createCompoundBorder(one, two));
    pnlPlotXY.setBackground(Color.white);
    chart = new AlignmentRansacPlot();
    pnlPlotXY.add(chart, BorderLayout.CENTER);
    mainPanel.add(peakListsPanel, 0, getNumberOfParameters() + 3, 3, 1, 0, 0, GridBagConstraints.BOTH);
    updateMinimumSize();
    pack();
    setLocationRelativeTo(MZmineCore.getDesktop().getMainWindow());
}

Example 45 with PeakList

use of net.sf.mzmine.datamodel.PeakList in project mzmine2 by mzmine.

the class HeatMapModule method runModule.

@Override
@Nonnull
public ExitCode runModule(@Nonnull MZmineProject project, @Nonnull ParameterSet parameters, @Nonnull Collection<Task> tasks) {
    PeakList selectedDataset = parameters.getParameter(HeatMapParameters.peakLists).getValue().getMatchingPeakLists()[0];
    HeatMapTask heatMapTask = new HeatMapTask(project, selectedDataset, parameters);
    tasks.add(heatMapTask);
    return ExitCode.OK;
}