some minor improvments in the SCAN/CONTOURS handling

src/classes/PFitter.cpp

@@ -71,6 +71,7 @@ using namespace std;
 PFitter::PFitter(PMsrHandler *runInfo, PRunListCollection *runListCollection, Bool_t chisq_only) :
   fChisqOnly(chisq_only), fRunInfo(runInfo)
 {
+  fIsScanOnly = true;
   fConverged = false;
   fUseChi2 = true; // chi^2 is the default
 
@@ -356,14 +357,18 @@ Bool_t PFitter::CheckCommands()
     } else if (it->fLine.Contains("EIGEN")) {
       fCmdList.push_back(PMN_EIGEN);
     } else if (it->fLine.Contains("HESSE")) {
+      fIsScanOnly = false;
       fCmdList.push_back(PMN_HESSE);
     } else if (it->fLine.Contains("MACHINE_PRECISION")) {
       fCmdList.push_back(PMN_MACHINE_PRECISION);
     } else if (it->fLine.Contains("MIGRAD")) {
+      fIsScanOnly = false;
       fCmdList.push_back(PMN_MIGRAD);
     } else if (it->fLine.Contains("MINIMIZE")) {
+      fIsScanOnly = false;
       fCmdList.push_back(PMN_MINIMIZE);
     } else if (it->fLine.Contains("MINOS")) {
+      fIsScanOnly = false;
       fCmdList.push_back(PMN_MINOS);
     } else if (it->fLine.Contains("MNPLOT")) {
       fCmdList.push_back(PMN_PLOT);
@@ -578,6 +583,20 @@ Bool_t PFitter::ExecuteContours()
 {
   cout << ">> PFitter::ExecuteContours() ..." << endl;
 
+  // if already some minimization is done use the minuit2 output as input
+  if (!fFcnMin) {
+    cerr << endl << "**WARNING**: CONTOURS musn't be called before any minimization (MINIMIZE/MIGRAD/SIMPLEX) is done!!";
+    cerr << endl;
+    return false;
+  }
+
+  // check if minimum was valid
+  if (!fFcnMin->IsValid()) {
+    cerr << endl << "**ERROR**: CONTOURS cannot started since the previous minimization failed :-(";
+    cerr << endl;
+    return false;
+  }
+
   ROOT::Minuit2::MnContours contours((*fFitterFcn), *fFcnMin);
 
   fScanData = contours(fScanParameter[0], fScanParameter[1], fScanNoPoints);
@@ -856,6 +875,8 @@ Bool_t PFitter::ExecuteScan()
     fScanData = scan.Scan(fScanParameter[0], fScanNoPoints, fScanLow, fScanHigh);
   }
 
+  fConverged = true;
+
   return true;
 }
 

src/include/PFitter.h

@@ -68,11 +68,13 @@ class PFitter
     virtual ~PFitter();
 
     Bool_t IsValid() { return fIsValid; }
+    Bool_t IsScanOnly() { return fIsScanOnly; }
     Bool_t HasConverged() { return fConverged; }
     Bool_t DoFit();
 
   private:
     Bool_t fIsValid;
+    Bool_t fIsScanOnly;
     Bool_t fConverged;
     Bool_t fChisqOnly;
     Bool_t fUseChi2;

src/musrfit.cpp

@@ -497,12 +497,13 @@ int main(int argc, char *argv[])
     fitter = new PFitter(msrHandler, runListCollection, chisq_only);
     if (fitter->IsValid()) {
       fitter->DoFit();
+      if (!fitter->IsScanOnly())
         msrHandler->SetMsrStatisticConverged(fitter->HasConverged());
     }
   }
 
   // write log file
-  if (success && !chisq_only) {
+  if (success && !chisq_only && !fitter->IsScanOnly()) {
     status = msrHandler->WriteMsrLogFile();
     if (status != PMUSR_SUCCESS) {
       switch (status) {
@@ -532,7 +533,7 @@ int main(int argc, char *argv[])
   }
 
   // rename MINUIT2.OUTPUT and MINUIT2.root file if wanted
-  if (keep_mn2_output && !chisq_only) {
+  if (keep_mn2_output && !chisq_only && !fitter->IsScanOnly()) {
     // 1st rename MINUIT2.OUTPUT
     TString fln = TString(filename);
     char ext[32];
@@ -547,7 +548,7 @@ int main(int argc, char *argv[])
     gSystem->CopyFile("MINUIT2.root", fln.Data(), kTRUE);
   }
 
-  if (!chisq_only) {
+  if (!chisq_only && !fitter->IsScanOnly()) {
     // swap msr- and mlog-file
     cout << endl << ">> swapping msr-, mlog-file ..." << endl;
     // copy msr-file -> __temp.msr