Matplotlib plugin for H2O Nitro

This plugin lets you use Matplotlib
and Seaborn visualizations in Nitro apps.

Warning: Try to avoid pyplot in web apps! pyplot maintains references to the opened figures to make show() work, but
this will cause memory leaks unless the figures are properly closed¹.

Demo

Matplotlib

View source.

Seaborn

View source.

Install

pip install h2o-nitro-matplotlib

Usage

1. Import the plugin:

from h2o_nitro_matplotlib import matplotlib_plugin, matplotlib_box

2. Register the plugin:

nitro = View(main, title='My App', caption='v1.0', plugins=[matplotlib_plugin()])

3. Use the plugin:

# Make a figure:
x = np.linspace(0, 2, 100)  # Sample data.
fig = Figure()
ax = fig.subplots()
ax.plot(x, x, label='linear')  # Plot some data on the axes.
ax.plot(x, x ** 2, label='quadratic')  # Plot more data on the axes...
ax.plot(x, x ** 3, label='cubic')  # ... and some more.
ax.set_xlabel('x label')  # Add an x-label to the axes.
ax.set_ylabel('y label')  # Add a y-label to the axes.
ax.legend()  # Add a legend.

# Display the figure:
view(matplotlib_box(fig))

Change Log

• v0.2.1 - Jun 09, 2022
  • Fixed
    • Don't return value from plots.
• v0.2.0 - May 30, 2022
  • Added
    • Use global pyplot if a figure is not passed (for Seaborn support).
• v0.1.0 - May 29, 2022
  • Initial Version