line

table: 'wandb.Table',
x: 'str',
y: 'str',
stroke: 'str | None' = None,
title: 'str' = '',
split_table: 'bool' = False

Description

Constructs a customizable line chart.

Args:

• table: The table containing data for the chart.
• x: Column name for the x-axis values.
• y: Column name for the y-axis values.
• stroke: Column name to differentiate line strokes (e.g., for grouping lines).
• title: Title of the chart.
• split_table: Whether the table should be split into a separate section in the W&B UI. If True, the table will be displayed in a section named “Custom Chart Tables”. Default is False.

Returns:

• CustomChart: A custom chart object that can be logged to W&B. To log the chart, pass it to wandb.log().

Examples:

import math
import random
import wandb

# Create multiple series of data with different patterns
data = []
for i in range(100):
    # Series 1: Sinusoidal pattern with random noise
    data.append([i, math.sin(i / 10) + random.uniform(-0.1, 0.1), "series_1"])
    # Series 2: Cosine pattern with random noise
    data.append([i, math.cos(i / 10) + random.uniform(-0.1, 0.1), "series_2"])
    # Series 3: Linear increase with random noise
    data.append([i, i / 10 + random.uniform(-0.5, 0.5), "series_3"])

# Define the columns for the table
table = wandb.Table(data=data, columns=["step", "value", "series"])

# Initialize wandb run and log the line chart
with wandb.init(project="line_chart_example") as run:
    line_chart = wandb.plot.line(
        table=table,
        x="step",
        y="value",
        stroke="series",  # Group by the "series" column
        title="Multi-Series Line Plot",
    )
    run.log({"line-chart": line_chart})