TMVA GUI in JupyROOT in Windows?

petrakou · November 12, 2022, 9:16am

Please help… TMVA feels very reduced if we can’t run the GUI.

When I run

ROOT.TMVA.TMVAGui(fileName)

I get this:

— Launch TMVA GUI to view input file: test.root
=== Note: inactive buttons indicate classifiers that were not trained, ===
=== or functionalities that were not invoked during the training ===

and nothing else happens.
I also try running %jsroot on first, same result.

Additionally, I wonder if this is related to not being able to open a TBrowser. a = ROOT.TBrowser() gives the warning “Warning in TBrowser::TBrowser: The ROOT browser cannot run in batch mode” and again nothing else happens. Am I missing something about opening GUIs?

Versions:
Python 3.6.5
Jupyter 4.4.0
ROOT 6.26/06

bellenot · November 12, 2022, 9:51pm

FYI, there is no GUI in JupyROOT

petrakou · November 13, 2022, 1:19pm

Of course, in hindsight, I should have thought so.

Does this mean that we can plot what is contained in the TMVAGUI only by directly calling the functions listed here?

bellenot · November 14, 2022, 9:34am

I guess so, maybe @moneta can give more details

moneta · November 14, 2022, 10:44am

Hi,

Yes you can call the GUI function directly. I have some example to do this in these notebooks:

github.com

lmoneta/tmva-tutorial/blob/master/notebooks/TMVAGuiROC.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<img src=\"tmva_logo.gif\" height=\"20%\" width=\"20%\">\n",
    "\n",
    "# Plot of ROC Curve\n",
    "\n",
    "This macro uses function in the TMVAGui libraries to plot classifiers ROC curves"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],

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github.com

lmoneta/tmva-tutorial/blob/master/notebooks/TMVAGuiPlots.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<img src=\"tmva_logo.gif\" height=\"20%\" width=\"20%\">\n",
    "\n",
    "# Plot of Classifier Output Distributions\n",
    "\n",
    "This macro uses function in the TMVAGui libraries to plot classifiers output distributions"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "fileName = \"TMVA_ClassificationOutput.root\";\n",

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Cheers

Lorenzo

petrakou · November 14, 2022, 11:18am

Thanks!
By the way, I had a question about the second example: The list of canvases that I get has only one canvas. Is this expected? (The example seems to imply otherwise.)

moneta · November 14, 2022, 2:16pm

In that example, you should get one Canvas for every TMVA method that has been trained. If you are using a single method then it is expected to have only one Canvas.

Lorenzo