Drawstyle not saved if histogram saved in rootfile?

[André Günther]

Hi all! 

I would like to save histograms in a root file with the drawstyle set to 'hist'. However, the drawstyle seems to get lost when I save the histogram. 

Example:

 

from rootpy.plotting import Hist

from rootpy.interactive import wait

from rootpy.io import root_open

hist = Hist(100, -4, 4, name='gaus', title='gaus', drawstyle='hist')

hist.FillRandom('gaus', 10000)

hist.Draw('h') # 'h' is not necessary because drawstyle is already 'hist'

wait()

output = root_open('output.root', 'recreate')

hist.Write()

Is there a way to save the histogram with the 'hist' style such that when I open the file in the TBrowser and display the histogram it still shows up as 'hist'?

Cheers,

Andre

[Noel Dawe]

Hi Andre,

Presently no. Transient rootpy decorations are not saved along with objects in files. This would be possible by saving a pickled dictionary in a TObjString along with every object but still TBrowser wouldn't be aware of that.

Best,

Noel

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