40 lines
925 B
C++
40 lines
925 B
C++
#include <TFile.h>
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#include <TTree.h>
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#include <stdio.h>
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void integral(TString file) {
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double e[24];
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int id[24], N[1];
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int sum1, sum2;
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TFile f(file);
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if (f.IsZombie()) {
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printf("cannot open root file\n");
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return;
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}
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TTree* t = (TTree*)f.Get("SimData1");
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if (!t) {
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printf("cannot find tree!\n");
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return;
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}
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t->SetBranchAddress("detE", e);
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t->SetBranchAddress("detId", id);
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t->SetBranchAddress("Ndets", N);
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int n = t->GetEntries();
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// printf("n=%d\n", n);
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int i, j;
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sum1 = sum2 = 0;
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for (i = 0; i < n; i++) {
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t->GetEntry(i);
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for (j = 0; j < N[0]; j++) {
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if (e[j] > 0.18 && id[j] < 12) {
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sum1++;
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}
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if (e[j] > 0.18 && id[j] > 11) {
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sum2++;
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}
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}
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}
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printf("%d,%d,%d,%f\n", sum1 + sum2, sum1, sum2, 1.0 * sum1 / sum2);
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}
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