Changed my snakefile and added a macro to merge root file

Projects/AlPhaPha/2024/Snakefile

@@ -26,7 +26,7 @@ rule all:
   input:
     expand("{file}",file=analysedfile)
 
-# Règle pour convertir les fichiers .fast dans le dossier .cat en .root
+# Règle pour convertir les fichiers raw en analysé
 rule npanalysis:
     input:
        f"{input_directory}/{{name}}.root"

Projects/AlPhaPha/DataMacro/Merger.C

 void Merger(int N, const char* outputDir, const char* outputFileName, const char* inputBaseName) {
-    TString outputPath = Form("%s/%s", outputDir, outputFileName);
-    TFile *outputFile = new TFile(outputPath, "RECREATE");
-    TList *fileList = new TList();
+    TString outputPath = Form("%s/%s.root", outputDir, outputFileName);
+    TFileMerger merger;
+    merger.OutputFile(outputPath, "RECREATE");  // Correct usage: specify the output file path directly
 
     for (int i = 0; i < N; i++) {
         TString fileName = Form("%s%d.root", inputBaseName, i); // Base name + index + .root
@@ -10,18 +10,16 @@ void Merger(int N, const char* outputDir, const char* outputFileName, const char
             std::cerr << "Error opening file: " << fileName << std::endl;
             continue;
         }
-        fileList->Add(inputFile);
+        merger.AddFile(fileName);  // Add file to the merger
 
         // Display progress
         int progress = ((i + 1) * 100) / N;
         std::cout << "\rMerging files: " << progress << "% complete." << std::flush;
     }
 
-    TFileMerger merger;
-    merger.OutputFile(outputFile, "RECREATE");
-    merger.Merge(fileList);
+    // Perform the merge operation
+    merger.Merge();
 
     std::cout << std::endl << "Merging completed! Output saved at: " << outputPath << std::endl;
-    outputFile->Close();
 }