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from __future__ import annotations
from typing import TYPE_CHECKING
from wandb.plot.custom_chart import plot_table
if TYPE_CHECKING:
import wandb
from wandb.plot.custom_chart import CustomChart
def line(
table: wandb.Table,
x: str,
y: str,
stroke: str | None = None,
title: str = "",
split_table: bool = False,
) -> CustomChart:
"""Constructs a customizable line chart.
Args:
table (wandb.Table): The table containing data for the chart.
x (str): Column name for the x-axis values.
y (str): Column name for the y-axis values.
stroke (str):Column name to differentiate line strokes (e.g., for
grouping lines).
title (str):Title of the chart.
split_table (bool): 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()`.
Example:
```python
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})
```
"""
return plot_table(
data_table=table,
vega_spec_name="wandb/line/v0",
fields={"x": x, "y": y, "stroke": stroke},
string_fields={"title": title},
split_table=split_table,
)
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