| 1 | /* ======================================================================== *\
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| 2 | !
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| 3 | ! *
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| 4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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| 5 | ! * Software. It is distributed to you in the hope that it can be a useful
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| 6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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| 7 | ! * It is distributed WITHOUT ANY WARRANTY.
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| 8 | ! *
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| 9 | ! * Permission to use, copy, modify and distribute this software and its
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| 10 | ! * documentation for any purpose is hereby granted without fee,
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| 11 | ! * provided that the above copyright notice appear in all copies and
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| 12 | ! * that both that copyright notice and this permission notice appear
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| 13 | ! * in supporting documentation. It is provided "as is" without express
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| 14 | ! * or implied warranty.
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| 15 | ! *
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| 16 | !
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| 17 | !
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| 18 | ! Author(s): Thomas Bretz, 11/2005 <mailto:tbretz@astro.uni-wuerzburg.de>
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| 19 | !
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| 20 | ! Copyright: MAGIC Software Development, 2000-2006
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| 21 | !
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| 22 | !
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| 23 | \* ======================================================================== *//////////////////////////////////////////////////////////////////////////////
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| 24 |
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| 25 | /////////////////////////////////////////////////////////////////////////////
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| 26 | //
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| 27 | // trainenergy.C
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| 28 | // =============
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| 29 | //
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| 30 | // Trains a random forest for energy estimation.
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| 31 | //
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| 32 | // The additional code below shows how the MagicCuts can be used in
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| 33 | // training and testing. There is also code which allows to change the
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| 34 | // slope of the input spectrum. If a min- or max-break energy is given
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| 35 | // the new slope is only applied in this region. Further possibilities
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| 36 | // for additional cuts are shown.
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| 37 | //
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| 38 | /////////////////////////////////////////////////////////////////////////////
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| 39 | void trainenergy()
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| 40 | {
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| 41 | MDataSet set("mcdataset.txt");
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| 42 | set.SetNumAnalysis(1); // Necessary
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| 43 |
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| 44 | MJTrainEnergy opt;
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| 45 | //opt.SetDebug();
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| 46 |
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| 47 | // ------- Parameters to train Random Forest --------
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| 48 | opt.AddParameter("MHillas.fSize");
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| 49 | opt.AddParameter("MHillasSrc.fDist");
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| 50 | opt.AddParameter("MPointingPos.fZd");
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| 51 | opt.AddParameter("MHillas.GetArea");
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| 52 | opt.AddParameter("MNewImagePar.fUsedArea");
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| 53 | opt.AddParameter("MNewImagePar.fCoreArea");
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| 54 | opt.AddParameter("MNewImagePar.fLeakage1");
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| 55 | opt.AddParameter("MNewImagePar.fLeakage2");
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| 56 | opt.AddParameter("MNewImagePar.fConc");
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| 57 | opt.AddParameter("MNewImagePar.fConc1");
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| 58 |
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| 59 | // -------------------- Run ----------------------------
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| 60 |
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| 61 | MStatusDisplay *d = new MStatusDisplay;
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| 62 | opt.SetDisplay(d);
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| 63 |
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| 64 | /*
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| 65 | -------------------- Magic-Cuts ----------------------
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| 66 | MFMagicCuts cuts;
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| 67 | cuts.SetHadronnessCut(MFMagicCuts::kArea);
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| 68 | cuts.SetThetaCut(MFMagicCuts::kOn);
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| 69 |
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| 70 | TArrayD arr(10);
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| 71 | arr[0]= 1.3245;
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| 72 | arr[1]= 0.208700;
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| 73 | arr[2]= 0.229200;
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| 74 | arr[3]= 5.305200;
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| 75 | arr[4]= 0.098930;
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| 76 | arr[5]= -0.082950;
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| 77 | arr[6]= 8.2957;
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| 78 | arr[7]= 0.8677;
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| 79 |
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| 80 | cuts.SetVariables(arr);
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| 81 |
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| 82 | opt.AddPreCut(&cuts);
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| 83 |
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| 84 | -------------------- Energy Slope --------------------
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| 85 | MFEnergySlope slope(-2.8); // New slope for mc spectrum
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| 86 | slope.SetMcMinEnergy(80); // Set break energy from -2.6 to -2.8
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| 87 | opt.AddPreCut(&slope); // throw away events to change slope
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| 88 |
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| 89 | -------------------- Other cuts ----------------------
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| 90 | opt.AddPreCut("MHillasSrc.fDist*MGeomCam.fConvMm2Deg<1.0");
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| 91 | opt.AddPreCut("MHillas.fSize>200");
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| 92 | */
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| 93 |
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| 94 | // Things which could be implemented in a future version
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| 95 | // PreCut in Energy oder Size?
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| 96 | // PreCut in Max Dist
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| 97 | // PreCut in Theta^2 (0.25 oder 0.3)
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| 98 | // New spectral slope
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| 99 | // Zenith angle distribution in OnTime
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| 100 |
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| 101 | opt.Train("rf-energy.root", set, 30000);
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| 102 | }
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| 103 | /*
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| 104 | // SequencesOn: Monte Carlo Sequences used for training
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| 105 | // SequencesOff: Monte Carlo Sequences used for testing
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| 106 |
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| 107 | // Use:
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| 108 | // opt.AddPreCut to use cut for test and training
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| 109 | // opt.AddTestCut to use cut for test only
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| 110 | // opt.AddTrainCut to use cut for train only
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| 111 | */
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