def make_a_legend(entries=5):
vh_legend = Legend(
entries, rightmargin=0.26, topmargin=0.05, leftmargin=0.375)
vh_legend.SetEntrySeparation(0.0)
vh_legend.SetMargin(0.35)
vh_legend.SetBorderSize(0)
return vh_legend
if fileNames[0] in fileDescr:
if fileDescr[fileNames[0]]:
legend.AddEntry(None, label=fileDescr[fileNames[0]], style="")
legend.AddEntry(None, label="(reference)", style="")
for idx, ratiohist in enumerate(ratiohists):
legend.AddEntry(ratiohist,
label=os.path.basename(fileNames[idx + 1]),
style="l")
# add additional info if specified by the user
if fileNames[idx + 1] in fileDescr:
if fileDescr[fileNames[idx + 1]]:
legend.AddEntry(None,
label=fileDescr[fileNames[idx + 1]],
style="")
legend.SetBorderSize(0)
legend.SetMargin(0.3)
legend.Draw()
# we need to keep the legend around in memory or it will be deleted before the plot is drawn
ROOT.SetOwnership(legend, False) # True to own, False to release
return cans
def findHistogramsInFile(filename, regexlist, strict, verbose=False):
""" searches the ROOT file given by filename and returns a list of files matching
one of the regular expressions in regexlist
"""
log = logging.getLogger('pyroplot')
import re
import rootpy
from rootpy.io import root_open
# speed up search routine by explicitly caching the regular expressions
