TMVA not showing plots on SWAN

TMVA
1

Hi dear experts,

I am currently using TMVA to study some particular type of signal. When I finish my training, testing and evaluation I wanna see some graphs produce by the TMVA (such as the roc curve, Output Distribution, Probability Distribution, etc.). If I was to write a .py script I could see all of that by calling “MVAGui” but I believed that in SWAN I cannot call that. Is there a way to see all those graphs on any .ipynb script? I have been using the “magic” function “%jsmva on” to allow the JavaScript graphics to appear but whenever I try to plot something I do not get any plot.

The following part shows a section of my script;

import ROOT
from ROOT import TFile, TMVA, TCut, TCanvas

%jsmva on

outputFile = TFile( “TMVA.root”, ‘RECREATE’ )
TMVA.Tools.Instance();

factory = TMVA.Factory( “TMVAClassification”, outputFile
,"!V:Color:DrawProgressBar:Transformations=I;D;P;G,D:AnalysisType=Classification" )
.
.
.

In here i load all variables into my factory, prepare training and booked methods.

.
.
.
factory.TrainAllMethods()
factory.TestAllMethods()
factory.EvaluateAllMethods()

factory.DrawOutputDistribution(dataset, “MLP”)
factory.DrawProbabilityDistribution(dataset, “LD”)
factory.DrawROCCurve(dataset)

None of the previous three classes are displaying any kind of plots. Is there a way to fix this problem?

I am running the following:
ROOT 5.34/36 (heads/v5-34-00-patches@v5-34-34-76-g57bae4c, Apr 08 2016, 12:05:00 on linuxx8664gcc)

Thanks,

Adrian Gutierrez

1 Like
2

Hi, Adrian.

How are you running ROOT 5.34 on SWAN?

3

Sorry, it is not ROOT 5.34. When I import ROOT to SWAN i get;
“Welcome to JupyROOT 6.12/06”

4

Hi,

Could you post a minimal example script that reproduces your problem? That would help a lot :slight_smile:

Cheers,
Kim

5

Hi Kim,

Yes. Here is a minimal example of the script that I am trying to run (not quite the same but very similar):

TMVATest.py (3.4 KB)

You can copy and pace the script to SWAN and everything should work fine. The only problem is that none of my plots are display.

Thanks,

Adrian

6

Hi, thanks for the reproducer. The issue is now understood and will be fixed asap (probably in the next bugfix release of 6.12).

Cheers,
Kim

7

Hi,

Could you try your setup through SWAN now. Hopefully the problem has now been resolved :slight_smile:

Please report back whether it works or not!

Cheers,
Kim

8

Hello Kim,

I read this post but I am still not able to use %jsmva on in my script to plot variables. My scripts can be found here

https://swan002.cern.ch/user/lata/notebooks/SWAN_projects/swanExamples1/notebooks/bbgg_python.ipynb

The error looks like this
ImportErrorTraceback (most recent call last)
in ()
1 import ROOT
----> 2 get_ipython().magic(u’jsmva on’)

/cvmfs/sft.cern.ch/lcg/views/LCG_95a/x86_64-centos7-gcc7-opt/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in magic(self, arg_s)
2158 magic_name, _, magic_arg_s = arg_s.partition(’ ')
2159 magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)
-> 2160 return self.run_line_magic(magic_name, magic_arg_s)
2161
2162 #-------------------------------------------------------------------------

Thanks,

Lata

1 Like
9

Hi,

We are tracking this issue here: https://sft.its.cern.ch/jira/browse/ROOT-10175?filter=-4

Cheers,
Kim