| 1 | /* More explanations at the end of the file */
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| 2 | void optimdisp()
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| 3 | {
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| 4 | MJOptimizeDisp opt; // Initialize optimization class
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| 5 | opt.SetDebug(2); // Choose the level of output
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| 6 | opt.SetOptimizer(MJOptimize::kMigrad); // Choose the fit algorithm (see MJOptimize)
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| 7 | opt.EnableTestTrain(); // Split sample into test and train
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| 8 |
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| 9 | // -------------------- Setup ----------------------------
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| 10 | opt.AddParameter("1-(MHillas.fWidth/MHillas.fLength)"); // M[0]
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| 11 | opt.AddParameter("log10(MNewImagePar.fLeakage1+1)"); // M[1]
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| 12 |
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| 13 | opt.SetParameter(0, 1.30871); // Setup [0]
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| 14 | opt.SetParameter(1, 5.81119); // Setup [1]
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| 15 | opt.SetParameter(2, 0.763486); // Setup [2]
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| 16 |
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| 17 | char *r = "([0]+([1]*pow(M[1], [2])))*M[0]"; // Rule to calc Disp
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| 18 |
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| 19 | // -------------------- Run ----------------------------
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| 20 |
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| 21 | MStatusDisplay *d = new MStatusDisplay;
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| 22 | opt.SetDisplay(d);
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| 23 |
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| 24 | /*
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| 25 | -------------------- Magic-Cuts ----------------------
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| 26 | MFMagicCuts cuts;
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| 27 | cuts.SetHadronnessCut(MFMagicCuts::kArea);
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| 28 | cuts.SetThetaCut(MFMagicCuts::kOn);
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| 29 |
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| 30 | TArrayD arr(10);
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| 31 | arr[0]= 1.3245;
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| 32 | arr[1]= 0.208700;
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| 33 | arr[2]= 0.229200;
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| 34 | arr[3]= 5.305200;
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| 35 | arr[4]= 0.098930;
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| 36 | arr[5]= -0.082950;
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| 37 | arr[6]= 8.2957;
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| 38 | arr[7]= 0.8677;
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| 39 |
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| 40 | cuts.SetVariables(arr);
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| 41 |
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| 42 | opt.AddPreCut(&cuts);
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| 43 |
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| 44 | -------------------- Energy Slope --------------------
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| 45 | MFEnergySlope slope(-2.8);
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| 46 | opt.AddPreCut(&slope);
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| 47 |
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| 48 | -------------------- Other cuts ----------------------
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| 49 | opt.AddPreCut("MNewImagePar.fLeakage1<0.0001");
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| 50 | */
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| 51 |
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| 52 | opt.RunDisp("ganymedmcpart.root", r);
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| 53 | }
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| 54 |
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| 55 | /* ------------------ Good strategy -------------------
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| 56 | 1) first fix parameters:
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| 57 | opt.FixParameter(1, 0);
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| 58 | opt.FixParameter(2, 1);
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| 59 | and process only showers without leakage
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| 60 | opt.AddPreCut("MNewImagePar.fLeakage1<0.0001");
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| 61 | 2) release parameters 1 and 2 and fix 0 to the result of 1)
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| 62 | opt.FixParameter(0, 0.8362);
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| 63 | opt.SetParameter(1, 2.0);
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| 64 | opt.SetParameter(2, 0.8);
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| 65 | and process only showers with leakage
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| 66 | opt.AddPreCut("MNewImagePar.fLeakage1>0.0001");
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| 67 | 3) release all parameters and start with the result of 1) and 2)
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| 68 | opt.SetParameter(0, 0.8362);
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| 69 | opt.SetParameter(1, 5.84);
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| 70 | opt.SetParameter(2, 0.76);
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| 71 | and process all showers. (Comment out opt.PreCuts())
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| 72 | */
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