BarPlotter Example

This example shows how to use the BarPlotter class to generate a bar chart to study the estimated mean of the learner’s knowledge and our confidence level (via error bars).

In this example, we use the NoveltyClassifier to build a representation of the learner’s knowledge. You could also use other classifiers like KnowledgeClassifier (for building knowledge representation) or InterestClassifier (for building interest representation).

from truelearn import learning, datasets
from truelearn.utils import visualisations

import plotly.io as pio

data, _, _ = datasets.load_peek_dataset(test_limit=0, verbose=False)

# select a learner from data
_, learning_events = data[12]

classifier = learning.NoveltyClassifier()
for event, label in learning_events:
    classifier.fit(event, label)

plotter = visualisations.BarPlotter()

plotter.plot(classifier.get_learner_model().knowledge, top_n=10)

# you can also use plotter.show()
# which is a shorthand for calling pio
pio.show(plotter.figure)