Difference: HUSUSYRoot (3 vs. 4)
Revision 42009-06-30 - AnitaKapusi
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How to use Root:http://root.cern.ch/ "How to" page: http://root.cern.ch/drupal/content/howtos User's guide: http://root.cern.ch/drupal/content/users-guide Reference guide: http://root.cern.ch/drupal/content/reference-guide | ||||||||
| Changed: | ||||||||
| < < | Run it: | |||||||
| > > | Run the Root:root -l | |||||||
| Deleted: | ||||||||
| < < | root -l | |||||||
Open a file:TFile *_file0 = TFile::Open("..... .root") | ||||||||
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Draw a histogram: | ||||||||
| Changed: | ||||||||
| < < | < name of the tree in the file >.Draw("< name of a Branch >.< name of a leaf >") 2D histogram: < name of the tree in the file >. Draw("< name of a Branch1 >.< name of a leaf1 >:< name of a Branch2 >.< name of a leaf2 >") | |||||||
| > > | < name of the tree in the file >.Draw("< name of a Branch >.< name of a leaf >") | |||||||
| Changed: | ||||||||
| < < | histogram with cut criteria: < name of the tree in the file >.Draw("< name of a Branch1 >.< name of a leaf1 >,< name of a Branch2 >.< name of a leaf2 >< cut criteria>") | |||||||
| > > | 2D histogram: | |||||||
| Changed: | ||||||||
| < < | draw two histogram in one canvas: < name of the tree in the file >.Draw("< name of a Branch1 >.< name of a leaf1 >") | |||||||
| > > | < name of the tree in the file >. Draw("< name of a Branch1 >.< name of a leaf1 >:< name of a Branch2 >.< name of a leaf2 >") histogram with cut criteria: < name of the tree in the file >.Draw("< name of a Branch1 >.< name of a leaf1 >,< name of a Branch2 >.< name of a leaf2 >< cut criteria>") draw two histogram in one canvas: < name of the tree in the file >.Draw("< name of a Branch1 >.< name of a leaf1 >") | |||||||
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< name of the tree in the file >.Draw("< name of a Branch2 >.< name of a leaf2 > ","","SAME") e.g.: tree.Draw("pelectron_1.tight: pelectron_1.loose ","pelectron_1.tight>-1") Open an AOD file in root: | ||||||||
View topic | History: r4 < r3 < r2 < r1 | More topic actions...
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