gradio/demo/stock_forecast.py

# Demo: (Radio, CheckboxGroup, Slider, Checkbox, Dropdown) -> (Image)

import gradio as gr
import matplotlib.pyplot as plt
import numpy as np


def stock_forecast(final_year, companies, noise, show_legend, point_style):
    start_year = 2020
    x = np.arange(start_year, final_year + 1)
    year_count = x.shape[0]
    plt_format = ({"cross": "X", "line": "-", "circle": "o--"})[point_style]
    fig = plt.figure()
    ax = fig.add_subplot(111)
    for i, company in enumerate(companies):
        series = np.arange(0, year_count, dtype=float)
        series = series ** 2 * (i + 1)
        series += np.random.rand(year_count) * noise
        ax.plot(x, series, plt_format)
    if show_legend:
        plt.legend(companies)
    plt.close()
    return fig


io = gr.Interface(
    stock_forecast,
    [
        gr.inputs.Radio([2025, 2030, 2035, 2040], label="Project to:"),
        gr.inputs.CheckboxGroup(["Google", "Microsoft", "Gradio"]),
        gr.inputs.Slider(1, 100),
        "checkbox",
        gr.inputs.Dropdown(["cross", "line", "circle"], label="Style")],
    gr.outputs.Image(plot=True, label="forecast"))

io.test_launch()
io.launch()