testtree Namespace Reference

Functions
def	create_tree

Function Documentation

def testtree.create_tree

(

filename = "test_tree.root"

)

Definition at line 6 of file testtree.py.

References print(), and sistrip::SpyUtilities.range().

Referenced by eventstfile_test.EventsTFileTestCase.test(), and chain_test.ChainTestCase.test_get().

def create_tree(filename="test_tree.root"): 
    outfile = TFile(filename, 'recreate')
    tree = Tree('test_tree', 'A test tree')
    tree.var('var1')
    for i in range(100):
        tree.fill('var1', i)
        tree.tree.Fill()
    print('creating a tree', tree.tree.GetName(),\
        tree.tree.GetEntries(), 'entries in',\
        outfile.GetName())
    outfile.Write()